Merge pull request '[#72] 로그 레벨 재조정' (#73) from refactor/#72 into main

Reviewed-on: #73

Dockerfile

@@ -1,10 +1,9 @@
-FROM gradle:8-jdk17 AS builder
-WORKDIR /app
-COPY . .
-RUN ./gradlew bootjar --no-daemon
-
 FROM amazoncorretto:17
+
 WORKDIR /app
+
+COPY service/build/libs/service.jar app.jar
+
 EXPOSE 8080
-COPY --from=builder /app/build/libs/*.jar app.jar
+
 ENTRYPOINT ["java", "-jar", "app.jar"]

README.md

@@ -1,3 +0,0 @@
-# issue-pr-template
-
-공통으로 사용하게 될 이슈, PR 템플릿 저장소

build.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+IMAGE_NAME="roomescape-backend"
+IMAGE_TAG=$1
+
+./gradlew build -x test && docker buildx build --platform=linux/amd64 -t ${PRIVATE_REGISTRY}/$IMAGE_NAME:$IMAGE_TAG . --push

common/log/src/test/kotlin/com/sangdol/common/log/AbstractLogMaskingConverterTest.kt

@@ -7,7 +7,6 @@ import io.kotest.assertions.assertSoftly
 import io.kotest.core.spec.style.FunSpec
 import io.kotest.matchers.equals.shouldBeEqual
 import io.kotest.matchers.shouldBe
-import io.kotest.matchers.string.shouldContain
 import io.mockk.every
 import io.mockk.mockk
 
@@ -48,7 +47,10 @@ class AbstractLogMaskingConverterTest : FunSpec({
                     event.formattedMessage
                 } returns json.format(account, address)
 
-                converter.convert(event) shouldBeEqual json.format("${account.first()}${converter.mask}${account.last()}", "${address.first()}${converter.mask}${address.last()}")
+                converter.convert(event) shouldBeEqual json.format(
+                    "${account.first()}${converter.mask}${account.last()}",
+                    "${address.first()}${converter.mask}${address.last()}"
+                )
             }
         }
     }

common/persistence/src/main/kotlin/com/sangdol/common/persistence/AuditingBaseEntity.kt

@@ -8,7 +8,7 @@ import org.springframework.data.annotation.CreatedDate
 import org.springframework.data.annotation.LastModifiedBy
 import org.springframework.data.annotation.LastModifiedDate
 import org.springframework.data.jpa.domain.support.AuditingEntityListener
-import java.time.LocalDateTime
+import java.time.Instant
 
 @MappedSuperclass
 @EntityListeners(AuditingEntityListener::class)
@@ -17,7 +17,7 @@ abstract class AuditingBaseEntity(
 ) : PersistableBaseEntity(id) {
     @Column(updatable = false)
     @CreatedDate
-    lateinit var createdAt: LocalDateTime
+    lateinit var createdAt: Instant
 
     @Column(updatable = false)
     @CreatedBy
@@ -25,7 +25,7 @@ abstract class AuditingBaseEntity(
 
     @Column
     @LastModifiedDate
-    lateinit var updatedAt: LocalDateTime
+    lateinit var updatedAt: Instant
 
     @Column
     @LastModifiedBy

common/persistence/src/test/kotlin/com/sangdol/common/persistence/TestAuditingBaseEntity.kt

@@ -7,6 +7,6 @@ import org.springframework.data.jpa.repository.JpaRepository
 class TestAuditingBaseEntity(
     id: Long,
     val name: String
-): AuditingBaseEntity(id)
+) : AuditingBaseEntity(id)
 
-interface TestAuditingBaseEntityRepository: JpaRepository<TestAuditingBaseEntity, Long>
+interface TestAuditingBaseEntityRepository : JpaRepository<TestAuditingBaseEntity, Long>

common/persistence/src/test/kotlin/com/sangdol/common/persistence/TestPersistableBaseEntity.kt

@@ -7,6 +7,6 @@ import org.springframework.data.jpa.repository.JpaRepository
 class TestPersistableBaseEntity(
     id: Long,
     val name: String
-): PersistableBaseEntity(id)
+) : PersistableBaseEntity(id)
 
-interface TestPersistableBaseEntityRepository: JpaRepository<TestPersistableBaseEntity, Long>
+interface TestPersistableBaseEntityRepository : JpaRepository<TestPersistableBaseEntity, Long>

common/persistence/src/test/kotlin/com/sangdol/common/persistence/TransactionExecutionUtilTest.kt

@@ -5,11 +5,7 @@ import io.kotest.core.spec.style.FunSpec
 import io.kotest.matchers.equality.shouldBeEqualUsingFields
 import io.kotest.matchers.nulls.shouldNotBeNull
 import io.kotest.matchers.shouldBe
-import io.mockk.clearMocks
-import io.mockk.every
-import io.mockk.mockk
-import io.mockk.slot
-import io.mockk.verify
+import io.mockk.*
 import org.junit.jupiter.api.assertThrows
 import org.springframework.transaction.PlatformTransactionManager
 import org.springframework.transaction.TransactionDefinition

common/utils/src/main/kotlin/com/sangdol/common/utils/KoreaDateTimeExtensions.kt

@@ -0,0 +1,21 @@
+package com.sangdol.common.utils
+
+import java.time.*
+import java.time.temporal.ChronoUnit
+
+private val KST_CLOCK = Clock.system(ZoneId.of("Asia/Seoul"))
+
+object KoreaDate {
+    fun today(): LocalDate = LocalDate.now(KST_CLOCK)
+}
+
+object KoreaTime {
+    fun now(): LocalTime = LocalTime.now(KST_CLOCK).truncatedTo(ChronoUnit.MINUTES)
+}
+
+object KoreaDateTime {
+    fun now(): LocalDateTime = LocalDateTime.now(KST_CLOCK)
+    fun nowWithOffset(): OffsetDateTime = OffsetDateTime.now(KST_CLOCK)
+}
+
+fun Instant.toKoreaDateTime(): LocalDateTime = this.atZone(KST_CLOCK.zone).toLocalDateTime()

common/utils/src/test/kotlin/com/sangdol/common/utils/KoreaDateTimeExtensionsTest.kt

@@ -0,0 +1,45 @@
+package com.sangdol.common.utils
+
+import io.kotest.assertions.assertSoftly
+import io.kotest.core.spec.style.FunSpec
+import io.kotest.matchers.shouldBe
+import java.time.*
+
+class KoreaDateTimeExtensionsTest : FunSpec({
+
+    test("한국 시간 기준으로 현재 시간을 가져오며, 초 단위는 제외한다.") {
+        assertSoftly(KoreaTime.now()) {
+            val utcNow = LocalTime.now(ZoneId.of("UTC"))
+
+            this.hour shouldBe utcNow.hour.plus(9)
+            this.minute shouldBe utcNow.minute
+            this.second shouldBe 0
+            this.nano shouldBe 0
+        }
+    }
+
+    test("한국 시간 기준으로 현재 날짜 + 시간을 LocalDateTime 타입으로 가져온다.") {
+        assertSoftly(KoreaDateTime.now()) {
+            val utcNow = LocalDateTime.now(ZoneId.of("UTC"))
+
+            this.withSecond(0).withNano(0) shouldBe utcNow.plusHours(9).withSecond(0).withNano(0)
+        }
+    }
+
+    test("한국 시간 기준으로 현재 날짜 + 시간을 OffsetDateTime 타입으로 가져온다.") {
+        assertSoftly(KoreaDateTime.nowWithOffset()) {
+            val utcNow = OffsetDateTime.now(ZoneId.of("UTC"))
+
+            this.toLocalDateTime().withSecond(0).withNano(0) shouldBe utcNow.toLocalDateTime().plusHours(9)
+                .withSecond(0).withNano(0)
+        }
+    }
+
+    test("UTC 시간을 LocalDateTime 타입의 한국 시간으로 변환한다.") {
+        val now = Instant.now()
+        val kstConverted = now.toKoreaDateTime()
+        val utc = now.atZone(ZoneId.of("UTC")).toLocalDateTime()
+
+        kstConverted.withSecond(0).withNano(0) shouldBe utc.plusHours(9).withSecond(0).withNano(0)
+    }
+})

common/web/src/main/kotlin/com/sangdol/common/web/asepct/ServiceObservationAspect.kt

@@ -0,0 +1,26 @@
+package com.sangdol.common.web.asepct
+
+import io.micrometer.observation.Observation
+import io.micrometer.observation.ObservationRegistry
+import org.aspectj.lang.ProceedingJoinPoint
+import org.aspectj.lang.annotation.Around
+import org.aspectj.lang.annotation.Aspect
+import org.aspectj.lang.annotation.Pointcut
+
+@Aspect
+class ServiceObservationAspect(
+    private val observationRegistry: ObservationRegistry
+) {
+
+    @Pointcut("execution(* com.sangdol..business..*Service*.*(..))")
+    fun allServices() {
+    }
+
+    @Around("allServices()")
+    fun runWithObserve(joinPoint: ProceedingJoinPoint): Any? {
+        val methodName: String = joinPoint.signature.toShortString()
+
+        return Observation.createNotStarted(methodName, observationRegistry)
+            .observe<Any?> { joinPoint.proceed() }
+    }
+}

common/web/src/main/kotlin/com/sangdol/common/web/config/JacksonConfig.kt

@@ -1,11 +1,8 @@
 package com.sangdol.common.web.config
 
-import com.fasterxml.jackson.core.JsonGenerator
 import com.fasterxml.jackson.databind.DeserializationFeature
-import com.fasterxml.jackson.databind.JsonSerializer
 import com.fasterxml.jackson.databind.ObjectMapper
-import com.fasterxml.jackson.databind.SerializerProvider
-import com.fasterxml.jackson.databind.module.SimpleModule
+import com.fasterxml.jackson.databind.SerializationFeature
 import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule
 import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateDeserializer
 import com.fasterxml.jackson.datatype.jsr310.deser.LocalTimeDeserializer
@@ -15,19 +12,13 @@ import com.fasterxml.jackson.module.kotlin.kotlinModule
 import org.springframework.context.annotation.Bean
 import org.springframework.context.annotation.Configuration
 import java.time.LocalDate
-import java.time.LocalDateTime
 import java.time.LocalTime
-import java.time.OffsetDateTime
-import java.time.ZoneId
 import java.time.format.DateTimeFormatter
 
 @Configuration
 class JacksonConfig {
 
     companion object {
-        private val ISO_OFFSET_DATE_TIME_FORMATTER: DateTimeFormatter =
-            DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ssXXX")
-
         private val LOCAL_TIME_FORMATTER: DateTimeFormatter =
             DateTimeFormatter.ofPattern("HH:mm")
     }
@@ -35,9 +26,9 @@ class JacksonConfig {
     @Bean
     fun objectMapper(): ObjectMapper = ObjectMapper()
         .registerModule(javaTimeModule())
-        .registerModule(dateTimeModule())
         .registerModule(kotlinModule())
         .configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false)
+        .configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false)
 
     private fun javaTimeModule(): JavaTimeModule = JavaTimeModule()
         .addSerializer(
@@ -56,35 +47,4 @@ class JacksonConfig {
             LocalTime::class.java,
             LocalTimeDeserializer(LOCAL_TIME_FORMATTER)
         ) as JavaTimeModule
-
-    private fun dateTimeModule(): SimpleModule {
-        val simpleModule = SimpleModule()
-        simpleModule.addSerializer(LocalDateTime::class.java, LocalDateTimeSerializer())
-        simpleModule.addSerializer(OffsetDateTime::class.java, OffsetDateTimeSerializer())
-        return simpleModule
-    }
-
-    class LocalDateTimeSerializer : JsonSerializer<LocalDateTime>() {
-        override fun serialize(
-            value: LocalDateTime,
-            gen: JsonGenerator,
-            serializers: SerializerProvider
-        ) {
-            value.atZone(ZoneId.systemDefault())
-                .toOffsetDateTime()
-                .also {
-                    gen.writeString(it.format(ISO_OFFSET_DATE_TIME_FORMATTER))
-                }
-        }
-    }
-
-    class OffsetDateTimeSerializer : JsonSerializer<OffsetDateTime>() {
-        override fun serialize(
-            value: OffsetDateTime,
-            gen: JsonGenerator,
-            serializers: SerializerProvider
-        ) {
-            gen.writeString(value.format(ISO_OFFSET_DATE_TIME_FORMATTER))
-        }
-    }
 }

common/web/src/main/kotlin/com/sangdol/common/web/config/ObservationConfig.kt

@@ -0,0 +1,41 @@
+package com.sangdol.common.web.config
+
+import com.sangdol.common.web.asepct.ServiceObservationAspect
+import io.micrometer.observation.ObservationPredicate
+import io.micrometer.observation.ObservationRegistry
+import io.micrometer.observation.aop.ObservedAspect
+import jakarta.servlet.http.HttpServletRequest
+import org.springframework.beans.factory.annotation.Value
+import org.springframework.context.annotation.Bean
+import org.springframework.context.annotation.Configuration
+import org.springframework.http.server.observation.ServerRequestObservationContext
+
+@Configuration
+class ObservationConfig(
+    @Value("\${management.endpoints.web.base-path}") private val actuatorPath: String
+) {
+
+    @Bean
+    fun observedAspect(observationRegistry: ObservationRegistry): ObservedAspect {
+        return ObservedAspect(observationRegistry)
+    }
+
+    @Bean
+    fun serviceObservationAspect(observationRegistry: ObservationRegistry): ServiceObservationAspect {
+        return ServiceObservationAspect(observationRegistry)
+    }
+
+    @Bean
+    fun excludeActuatorPredicate(): ObservationPredicate {
+        return ObservationPredicate { _, context ->
+            if (context !is ServerRequestObservationContext) {
+                return@ObservationPredicate true
+            }
+
+            val servletRequest: HttpServletRequest = context.carrier
+            val requestUri = servletRequest.requestURI
+
+            !requestUri.contains(actuatorPath)
+        }
+    }
+}

common/web/src/main/kotlin/com/sangdol/common/web/config/WebLoggingConfig.kt

@@ -4,6 +4,7 @@ import com.fasterxml.jackson.databind.ObjectMapper
 import com.sangdol.common.web.asepct.ControllerLoggingAspect
 import com.sangdol.common.web.servlet.HttpRequestLoggingFilter
 import com.sangdol.common.web.support.log.WebLogMessageConverter
+import io.micrometer.tracing.CurrentTraceContext
 import org.springframework.boot.web.servlet.FilterRegistrationBean
 import org.springframework.context.annotation.Bean
 import org.springframework.context.annotation.Configuration
@@ -17,9 +18,10 @@ class WebLoggingConfig {
     @Bean
     @DependsOn(value = ["webLogMessageConverter"])
     fun filterRegistrationBean(
-        webLogMessageConverter: WebLogMessageConverter
+        webLogMessageConverter: WebLogMessageConverter,
+        currentTraceContext: CurrentTraceContext
     ): FilterRegistrationBean<OncePerRequestFilter> {
-        val filter = HttpRequestLoggingFilter(webLogMessageConverter)
+        val filter = HttpRequestLoggingFilter(webLogMessageConverter, currentTraceContext)
 
         return FilterRegistrationBean<OncePerRequestFilter>(filter)
             .apply { this.order = Ordered.HIGHEST_PRECEDENCE + 2 }

common/web/src/main/kotlin/com/sangdol/common/web/exception/GlobalExceptionhandler.kt

@@ -1,6 +1,5 @@
 package com.sangdol.common.web.exception
 
-import com.sangdol.common.log.constant.LogType
 import com.sangdol.common.types.exception.CommonErrorCode
 import com.sangdol.common.types.exception.ErrorCode
 import com.sangdol.common.types.exception.RoomescapeException
@@ -31,7 +30,7 @@ class GlobalExceptionHandler(
         val httpStatus: HttpStatus = errorCode.httpStatus
         val errorResponse = CommonErrorResponse(errorCode)
 
-        logException(servletRequest, httpStatus, errorResponse, e)
+        log.info { convertExceptionLogMessage(servletRequest, httpStatus, errorResponse, e) }
 
         return ResponseEntity
             .status(httpStatus.value())
@@ -57,7 +56,7 @@ class GlobalExceptionHandler(
         val httpStatus: HttpStatus = errorCode.httpStatus
         val errorResponse = CommonErrorResponse(errorCode)
 
-        logException(servletRequest, httpStatus, errorResponse, e)
+        log.warn { convertExceptionLogMessage(servletRequest, httpStatus, errorResponse, e) }
 
         return ResponseEntity
             .status(httpStatus.value())
@@ -75,30 +74,26 @@ class GlobalExceptionHandler(
         val httpStatus: HttpStatus = errorCode.httpStatus
         val errorResponse = CommonErrorResponse(errorCode)
 
-        logException(servletRequest, httpStatus, errorResponse, e)
+        log.warn { convertExceptionLogMessage(servletRequest, httpStatus, errorResponse, e) }
 
         return ResponseEntity
             .status(httpStatus.value())
             .body(errorResponse)
     }
 
-    private fun logException(
+    private fun convertExceptionLogMessage(
         servletRequest: HttpServletRequest,
         httpStatus: HttpStatus,
         errorResponse: CommonErrorResponse,
         exception: Exception
-    ) {
-        val type = if (httpStatus.isClientError()) LogType.APPLICATION_FAILURE else LogType.UNHANDLED_EXCEPTION
+    ): String {
         val actualException: Exception? = if (errorResponse.message == exception.message) null else exception
 
-        val logMessage = messageConverter.convertToResponseMessage(
-            type = type,
+        return messageConverter.convertToErrorResponseMessage(
             servletRequest = servletRequest,
-            httpStatusCode = httpStatus.value(),
+            httpStatus = httpStatus,
             responseBody = errorResponse,
             exception = actualException
         )
-
-        log.warn { logMessage }
     }
 }

common/web/src/main/kotlin/com/sangdol/common/web/servlet/HttpRequestLoggingFilter.kt

@@ -5,6 +5,7 @@ import com.sangdol.common.utils.MdcStartTimeUtil
 import com.sangdol.common.web.support.log.WebLogMessageConverter
 import io.github.oshai.kotlinlogging.KLogger
 import io.github.oshai.kotlinlogging.KotlinLogging
+import io.micrometer.tracing.CurrentTraceContext
 import jakarta.servlet.FilterChain
 import jakarta.servlet.http.HttpServletRequest
 import jakarta.servlet.http.HttpServletResponse
@@ -15,7 +16,8 @@ import org.springframework.web.util.ContentCachingResponseWrapper
 private val log: KLogger = KotlinLogging.logger {}
 
 class HttpRequestLoggingFilter(
-    private val messageConverter: WebLogMessageConverter
+    private val messageConverter: WebLogMessageConverter,
+    private val currentTraceContext: CurrentTraceContext
 ) : OncePerRequestFilter() {
     override fun doFilterInternal(
         request: HttpServletRequest,
@@ -32,9 +34,12 @@ class HttpRequestLoggingFilter(
         try {
             filterChain.doFilter(cachedRequest, cachedResponse)
             cachedResponse.copyBodyToResponse()
+        } catch (e: Exception) {
+            throw e
         } finally {
             MdcStartTimeUtil.clear()
             MdcPrincipalIdUtil.clear()
+            currentTraceContext.maybeScope(null)
         }
     }
 }

common/web/src/main/kotlin/com/sangdol/common/web/support/log/WebLogMessageConverter.kt

@@ -2,6 +2,7 @@ package com.sangdol.common.web.support.log
 
 import com.fasterxml.jackson.databind.ObjectMapper
 import com.sangdol.common.log.constant.LogType
+import com.sangdol.common.types.web.HttpStatus
 import jakarta.servlet.http.HttpServletRequest
 
 class WebLogMessageConverter(
@@ -18,7 +19,10 @@ class WebLogMessageConverter(
         return objectMapper.writeValueAsString(payload)
     }
 
-    fun convertToControllerInvokedMessage(servletRequest: HttpServletRequest, controllerPayload: Map<String, Any>): String {
+    fun convertToControllerInvokedMessage(
+        servletRequest: HttpServletRequest,
+        controllerPayload: Map<String, Any>
+    ): String {
         val payload = LogPayloadBuilder(type = LogType.CONTROLLER_INVOKED, servletRequest = servletRequest)
             .endpoint()
             .principalId()
@@ -46,4 +50,19 @@ class WebLogMessageConverter(
 
         return objectMapper.writeValueAsString(payload)
     }
+
+    fun convertToErrorResponseMessage(
+        servletRequest: HttpServletRequest,
+        httpStatus: HttpStatus,
+        responseBody: Any? = null,
+        exception: Exception? = null,
+    ): String {
+        val type = if (httpStatus.isClientError()) {
+            LogType.APPLICATION_FAILURE
+        } else {
+            LogType.UNHANDLED_EXCEPTION
+        }
+
+        return convertToResponseMessage(type, servletRequest, httpStatus.value(), responseBody, exception)
+    }
 }

common/web/src/test/kotlin/com/sangdol/common/web/config/JacksonConfigTest.kt

@@ -7,10 +7,7 @@ import io.kotest.core.spec.style.FunSpec
 import io.kotest.matchers.shouldBe
 import io.kotest.matchers.string.shouldContain
 import java.time.LocalDate
-import java.time.LocalDateTime
 import java.time.LocalTime
-import java.time.OffsetDateTime
-import java.time.ZoneOffset
 
 class JacksonConfigTest : FunSpec({
 
@@ -55,38 +52,4 @@ class JacksonConfigTest : FunSpec({
             }.message shouldContain "Text '$hour:$minute:$sec' could not be parsed"
         }
     }
-
-    context("Long 타입은 문자열로 (역)직렬화된다.") {
-        val number = 1234567890L
-        val serialized: String = objectMapper.writeValueAsString(number)
-        val deserialized: Long = objectMapper.readValue(serialized, Long::class.java)
-
-        test("Long 직렬화") {
-            serialized shouldBe "$number"
-        }
-
-        test("Long 역직렬화") {
-            deserialized shouldBe number
-        }
-    }
-
-    context("OffsetDateTime은 ISO 8601 형식으로 직렬화된다.") {
-        val date = LocalDate.of(2025, 7, 14)
-        val time = LocalTime.of(12, 30, 0)
-        val dateTime = OffsetDateTime.of(date, time, ZoneOffset.ofHours(9))
-        val serialized: String = objectMapper.writeValueAsString(dateTime)
-
-        test("OffsetDateTime 직렬화") {
-            serialized shouldBe "\"2025-07-14T12:30:00+09:00\""
-        }
-    }
-
-    context("LocalDateTime은 ISO 8601 형식으로 직렬화된다.") {
-        val dateTime = LocalDateTime.of(2025, 7, 14, 12, 30, 0)
-        val serialized: String = objectMapper.writeValueAsString(dateTime)
-
-        test("LocalDateTime 직렬화") {
-            serialized shouldBe "\"2025-07-14T12:30:00+09:00\""
-        }
-    }
 })

common/web/src/test/kotlin/com/sangdol/common/web/support/log/WebLogMessageConverterTest.kt

@@ -121,7 +121,10 @@ class WebLogMessageConverterTest : FunSpec({
                 this["duration_ms"].shouldNotBeNull()
                 this["principal_id"] shouldBe principalId
                 this["response_body"] shouldBe null
-                this["exception"] shouldBe mapOf("class" to exception.javaClass.simpleName, "message" to exception.message)
+                this["exception"] shouldBe mapOf(
+                    "class" to exception.javaClass.simpleName,
+                    "message" to exception.message
+                )
             }
         }
 
@@ -141,7 +144,10 @@ class WebLogMessageConverterTest : FunSpec({
                 this["duration_ms"].shouldNotBeNull()
                 this["principal_id"] shouldBe principalId
                 this["response_body"] shouldBe body
-                this["exception"] shouldBe mapOf("class" to exception.javaClass.simpleName, "message" to exception.message)
+                this["exception"] shouldBe mapOf(
+                    "class" to exception.javaClass.simpleName,
+                    "message" to exception.message
+                )
             }
         }
 
@@ -162,5 +168,27 @@ class WebLogMessageConverterTest : FunSpec({
                 this["exception"] shouldBe null
             }
         }
+
+        test("4xx 에러가 발생하면 ${LogType.APPLICATION_FAILURE} 타입으로 변환한다.") {
+            val result = converter.convertToErrorResponseMessage(
+                servletRequest = servletRequest,
+                httpStatus = HttpStatus.BAD_REQUEST,
+            )
+
+            assertSoftly(objectMapper.readValue(result, LinkedHashMap::class.java)) {
+                this["type"] shouldBe LogType.APPLICATION_FAILURE.name
+            }
+        }
+
+        test("5xx 에러가 발생하면 ${LogType.UNHANDLED_EXCEPTION} 타입으로 변환한다.") {
+            val result = converter.convertToErrorResponseMessage(
+                servletRequest = servletRequest,
+                httpStatus = HttpStatus.INTERNAL_SERVER_ERROR,
+            )
+
+            assertSoftly(objectMapper.readValue(result, LinkedHashMap::class.java)) {
+                this["type"] shouldBe LogType.UNHANDLED_EXCEPTION.name
+            }
+        }
     }
 })

docker/docker-compose.yaml

@@ -8,7 +8,7 @@ services:
     environment:
       MYSQL_ROOT_PASSWORD: init
       MYSQL_DATABASE: roomescape_local
-      TZ: Asia/Seoul
+      TZ: UTC
     command:
       - --character-set-server=utf8mb4
       - --collation-server=utf8mb4_unicode_ci

frontend/.dockerignore

@@ -1,6 +1,18 @@
-node_modules
 .git
-.DS_Store
+.gitignore
+
+# Node.js
+node_modules
 npm-debug.log
-dist
+
+# Build output
 build
+dist
+
+# Editor/OS specific
+.vscode
+.idea
+.DS_Store
+
+# Environment variables
+.env*

frontend/Dockerfile

@@ -1,18 +1,17 @@
-# Stage 1: Build the React app
-FROM node:24 AS builder
+FROM node:24-alpine AS builder
 WORKDIR /app
-COPY package.json ./
-COPY package-lock.json ./
 
-RUN npm install --frozen-lockfile
+COPY package.json package-lock.json ./
+
+RUN npm ci
 
 COPY . .
 
 RUN npm run build
+FROM nginx:1.27-alpine
 
-# Stage 2: Serve with Nginx
-FROM nginx:latest
 COPY --from=builder /app/dist /usr/share/nginx/html
 COPY nginx.conf /etc/nginx/conf.d/default.conf
+
 EXPOSE 80
 CMD ["nginx", "-g", "daemon off;"]

frontend/src/api/order/orderAPI.ts

@@ -0,0 +1,12 @@
+import apiClient from "@_api/apiClient";
+import type { PaymentConfirmRequest } from "@_api/payment/PaymentTypes";
+
+export const confirm = async (
+    reservationId: string,
+    data: PaymentConfirmRequest,
+): Promise<void> => {
+    return await apiClient.post<void>(
+        `/orders/${reservationId}/confirm`,
+        data
+    );
+};

frontend/src/api/order/orderTypes.ts

@@ -0,0 +1,5 @@
+export interface OrderErrorResponse {
+    code: string;
+    message: string;
+    trial: number;
+}

frontend/src/api/payment/PaymentTypes.ts

@@ -2,7 +2,6 @@ export interface PaymentConfirmRequest {
     paymentKey: string;
     orderId: string;
     amount: number;
-    paymentType: PaymentType;
 }
 
 export interface PaymentCancelRequest {

frontend/src/api/schedule/scheduleTypes.ts

@@ -1,5 +1,3 @@
-import type { Difficulty } from '@_api/theme/themeTypes';
-
 export type ScheduleStatus = 'AVAILABLE' | 'HOLD' | 'RESERVED' | 'BLOCKED';
 
 export const ScheduleStatus = {
@@ -40,14 +38,33 @@ export interface AdminScheduleSummaryListResponse {
 }
 
 // Public
+export interface ScheduleResponse {
+    id: string;
+    date: string;
+    startFrom: string;
+    endAt: string;
+    status: ScheduleStatus;
+}
+
+export interface ScheduleThemeInfo {
+    id: string;
+    name: string;
+}
+
+export interface ScheduleStoreInfo {
+    id: string;
+    name: string;
+}
+
+export interface ScheduleWithStoreAndThemeResponse {
+    schedule: ScheduleResponse,
+    theme: ScheduleThemeInfo,
+    store: ScheduleStoreInfo,
+}
+
 export interface ScheduleWithThemeResponse {
-    id: string,
-    startFrom: string,
-    endAt: string,
-    themeId: string,
-    themeName: string,
-    themeDifficulty: Difficulty,
-    status: ScheduleStatus
+    schedule: ScheduleResponse,
+    theme: ScheduleThemeInfo
 }
 
 export interface ScheduleWithThemeListResponse {

frontend/src/components/AdminRoute.tsx

@@ -1,28 +0,0 @@
-import React from 'react';
-import {Navigate, useLocation} from 'react-router-dom';
-import {useAuth} from '../context/AuthContext';
-
-const AdminRoute: React.FC<{ children: JSX.Element }> = ({ children }) => {
-    const { loggedIn, role, loading } = useAuth();
-    const location = useLocation();
-
-    if (loading) {
-        return <div>Loading...</div>; // Or a proper spinner component
-    }
-
-    if (!loggedIn) {
-        // Not logged in, redirect to login page. No alert needed here
-        // as the user is simply redirected.
-        return <Navigate to="/login" state={{ from: location }} replace />;
-    }
-
-    if (role !== 'ADMIN') {
-        // Logged in but not an admin, show alert and redirect.
-        alert('접근 권한이 없어요. 관리자에게 문의해주세요.');
-        return <Navigate to="/" replace />;
-    }
-
-    return children;
-};
-
-export default AdminRoute;

frontend/src/pages/ReservationStep1Page.tsx

@@ -1,17 +1,17 @@
-import {isLoginRequiredError} from '@_api/apiClient';
-import {fetchSidoList, fetchSigunguList} from '@_api/region/regionAPI';
-import {type SidoResponse, type SigunguResponse} from '@_api/region/regionTypes';
-import {fetchSchedules, holdSchedule} from '@_api/schedule/scheduleAPI';
-import {ScheduleStatus, type ScheduleWithThemeResponse} from '@_api/schedule/scheduleTypes';
-import {getStores} from '@_api/store/storeAPI';
-import {type SimpleStoreResponse} from '@_api/store/storeTypes';
-import {fetchThemeById} from '@_api/theme/themeAPI';
-import {DifficultyKoreanMap, type ThemeInfoResponse} from '@_api/theme/themeTypes';
+import { isLoginRequiredError } from '@_api/apiClient';
+import { fetchSidoList, fetchSigunguList } from '@_api/region/regionAPI';
+import { type SidoResponse, type SigunguResponse } from '@_api/region/regionTypes';
+import { type ReservationData } from '@_api/reservation/reservationTypes';
+import { fetchSchedules, holdSchedule } from '@_api/schedule/scheduleAPI';
+import { ScheduleStatus, type ScheduleWithThemeResponse } from '@_api/schedule/scheduleTypes';
+import { getStores } from '@_api/store/storeAPI';
+import { type SimpleStoreResponse } from '@_api/store/storeTypes';
+import { fetchThemeById } from '@_api/theme/themeAPI';
+import { DifficultyKoreanMap, type ThemeInfoResponse } from '@_api/theme/themeTypes';
 import '@_css/reservation-v2-1.css';
-import React, {useEffect, useState} from 'react';
-import {useLocation, useNavigate} from 'react-router-dom';
-import {type ReservationData} from '@_api/reservation/reservationTypes';
-import {formatDate} from 'src/util/DateTimeFormatter';
+import React, { useEffect, useState } from 'react';
+import { useLocation, useNavigate } from 'react-router-dom';
+import { formatDate } from 'src/util/DateTimeFormatter';
 
 const ReservationStep1Page: React.FC = () => {
     const [selectedDate, setSelectedDate] = useState<Date>(new Date());
@@ -76,7 +76,7 @@ const ReservationStep1Page: React.FC = () => {
             fetchSchedules(selectedStore.id, dateStr)
                 .then(res => {
                     const grouped = res.schedules.reduce((acc, schedule) => {
-                        const key = schedule.themeName;
+                        const key = schedule.theme.name;
                         if (!acc[key]) acc[key] = [];
                         acc[key].push(schedule);
                         return acc;
@@ -111,11 +111,11 @@ const ReservationStep1Page: React.FC = () => {
     const handleConfirmReservation = () => {
         if (!selectedSchedule) return;
 
-        holdSchedule(selectedSchedule.id)
+        holdSchedule(selectedSchedule.schedule.id)
             .then(() => {
-                fetchThemeById(selectedSchedule.themeId).then(res => {
+                fetchThemeById(selectedSchedule.theme.id).then(res => {
                     const reservationData: ReservationData = {
-                        scheduleId: selectedSchedule.id,
+                        scheduleId: selectedSchedule.schedule.id,
                         store: {
                             id: selectedStore!.id,
                             name: selectedStore!.name,
@@ -128,8 +128,8 @@ const ReservationStep1Page: React.FC = () => {
                             maxParticipants: res.maxParticipants,
                         },
                         date: selectedDate.toLocaleDateString('en-CA'),
-                        startFrom: selectedSchedule.startFrom,
-                        endAt: selectedSchedule.endAt,
+                        startFrom: selectedSchedule.schedule.startFrom,
+                        endAt: selectedSchedule.schedule.endAt,
                     };
                     navigate('/reservation/form', {state: reservationData});
                 }).catch(handleError);
@@ -248,23 +248,23 @@ const ReservationStep1Page: React.FC = () => {
                 <h3>3. 시간 선택</h3>
                 <div className="schedule-list">
                     {Object.keys(schedulesByTheme).length > 0 ? (
-                        Object.entries(schedulesByTheme).map(([themeName, schedules]) => (
+                        Object.entries(schedulesByTheme).map(([themeName, scheduleAndTheme]) => (
                             <div key={themeName} className="theme-schedule-group">
                                 <div className="theme-header">
                                     <h4>{themeName}</h4>
-                                    <button onClick={() => openThemeModal(schedules[0].themeId)}
+                                    <button onClick={() => openThemeModal(scheduleAndTheme[0].theme.id)}
                                             className="theme-detail-button">상세보기
                                     </button>
                                 </div>
                                 <div className="time-slots">
-                                    {schedules.map(schedule => (
+                                    {scheduleAndTheme.map(schedule => (
                                         <div
-                                            key={schedule.id}
-                                            className={`time-slot ${selectedSchedule?.id === schedule.id ? 'active' : ''} ${schedule.status !== ScheduleStatus.AVAILABLE ? 'disabled' : ''}`}
-                                            onClick={() => schedule.status === ScheduleStatus.AVAILABLE && setSelectedSchedule(schedule)}
+                                            key={schedule.schedule.id}
+                                            className={`time-slot ${selectedSchedule?.schedule.id === schedule.schedule.id ? 'active' : ''} ${schedule.schedule.status !== ScheduleStatus.AVAILABLE ? 'disabled' : ''}`}
+                                            onClick={() => schedule.schedule.status === ScheduleStatus.AVAILABLE && setSelectedSchedule(schedule)}
                                         >
-                                            {`${schedule.startFrom} ~ ${schedule.endAt}`}
-                                            <span className="time-availability">{getStatusText(schedule.status)}</span>
+                                            {`${schedule.schedule.startFrom} ~ ${schedule.schedule.endAt}`}
+                                            <span className="time-availability">{getStatusText(schedule.schedule.status)}</span>
                                         </div>
                                     ))}
                                 </div>
@@ -313,8 +313,8 @@ const ReservationStep1Page: React.FC = () => {
                         <div className="modal-section modal-info-grid">
                             <p><strong>날짜:</strong><span>{formatDate(selectedDate.toLocaleDateString('ko-KR'))}</span></p>
                             <p><strong>매장:</strong><span>{selectedStore?.name}</span></p>
-                            <p><strong>테마:</strong><span>{selectedSchedule.themeName}</span></p>
-                            <p><strong>시간:</strong><span>{`${selectedSchedule.startFrom} ~ ${selectedSchedule.endAt}`}</span></p>
+                            <p><strong>테마:</strong><span>{selectedSchedule.theme.name}</span></p>
+                            <p><strong>시간:</strong><span>{`${selectedSchedule.schedule.startFrom} ~ ${selectedSchedule.schedule.endAt}`}</span></p>
                         </div>
                         <div className="modal-actions">
                             <button className="cancel-button" onClick={() => setIsConfirmModalOpen(false)}>취소</button>

frontend/src/pages/ReservationStep2Page.tsx

@@ -1,8 +1,9 @@
-import { isLoginRequiredError } from '@_api/apiClient';
-import { confirmPayment } from '@_api/payment/paymentAPI';
-import { type PaymentConfirmRequest, PaymentType } from '@_api/payment/PaymentTypes';
+import { confirm } from '@_api/order/orderAPI';
+import type { OrderErrorResponse } from '@_api/order/orderTypes';
+import { type PaymentConfirmRequest } from '@_api/payment/PaymentTypes';
 import { confirmReservation } from '@_api/reservation/reservationAPI';
 import '@_css/reservation-v2-1.css';
+import type { AxiosError } from 'axios';
 import React, { useEffect, useRef } from 'react';
 import { useLocation, useNavigate } from 'react-router-dom';
 import { formatDate } from 'src/util/DateTimeFormatter';
@@ -21,17 +22,6 @@ const ReservationStep2Page: React.FC = () => {
 
     const { reservationId, storeName, themeName, themePrice, totalPrice, date, time, participantCount } = location.state || {};
 
-    const handleError = (err: any) => {
-        if (isLoginRequiredError(err)) {
-            alert('로그인이 필요해요.');
-            navigate('/login', { state: { from: location } });
-        } else {
-            const message = err.response?.data?.message || '알 수 없는 오류가 발생했습니다.';
-            alert(message);
-            console.error(err);
-        }
-    };
-
     useEffect(() => {
         if (!reservationId) {
             alert('잘못된 접근입니다.');
@@ -77,13 +67,8 @@ const ReservationStep2Page: React.FC = () => {
                 paymentKey: data.paymentKey,
                 orderId: data.orderId,
                 amount: totalPrice,
-                paymentType: data.paymentType || PaymentType.NORMAL,
             };
-
-            confirmPayment(reservationId, paymentData)
-                .then(() => {
-                    return confirmReservation(reservationId);
-                })
+            confirm(reservationId, paymentData)
                 .then(() => {
                     alert('결제가 완료되었어요!');
                     navigate('/reservation/success', {
@@ -97,10 +82,50 @@ const ReservationStep2Page: React.FC = () => {
                         }
                     });
                 })
-                .catch(handleError);
+                .catch(err => {
+                    const error = err as AxiosError<OrderErrorResponse>;
+                    const errorCode = error.response?.data?.code;
+                    const errorMessage = error.response?.data?.message;
+
+                    if (errorCode === 'B000') {
+                        alert(`예약을 완료할 수 없어요.(${errorMessage})`);
+                        navigate('/reservation');
+                        return;
+                    }
+
+                    const trial = error.response?.data?.trial || 0;
+                    if (trial < 2) {
+                        alert(errorMessage);
+                        return;
+                    }
+                    alert(errorMessage);
+
+                    setTimeout(() => {
+                        const agreeToOnsitePayment = window.confirm('재시도 횟수를 초과했어요. 현장결제를 하시겠어요?');
+
+                        if (agreeToOnsitePayment) {
+                            confirmReservation(reservationId)
+                                .then(() => {
+                                    navigate('/reservation/success', {
+                                        state: {
+                                            storeName,
+                                            themeName,
+                                            date,
+                                            time,
+                                            participantCount,
+                                            totalPrice,
+                                        },
+                                    });
+                                });
+                        } else {
+                            alert('다음에 다시 시도해주세요. 메인 페이지로 이동할게요.');
+                            navigate('/');
+                        }
+                    }, 100);
+                });
         }).catch((error: any) => {
             console.error("Payment request error:", error);
-            alert("결제 요청 중 오류가 발생했습니다.");
+            alert("결제 요청 중 오류가 발생했어요. 새로고침 후 다시 시도해주세요.");
         });
     };
 

frontend/src/pages/admin/AdminSchedulePage.tsx

@@ -10,10 +10,11 @@ import {
 import {type AdminScheduleSummaryResponse, ScheduleStatus,} from '@_api/schedule/scheduleTypes';
 import {getStores} from '@_api/store/storeAPI';
 import {type SimpleStoreResponse} from '@_api/store/storeTypes';
-import {fetchActiveThemes, fetchThemeById} from '@_api/theme/themeAPI';
+import {fetchActiveThemes} from '@_api/theme/themeAPI';
 import {DifficultyKoreanMap, type SimpleActiveThemeResponse, type ThemeInfoResponse} from '@_api/theme/themeTypes';
 import {useAdminAuth} from '@_context/AdminAuthContext';
 import '@_css/admin-schedule-page.css';
+import {formatDisplayDateTime} from '@_util/DateTimeFormatter';
 import React, {Fragment, useEffect, useState} from 'react';
 import {useLocation, useNavigate} from 'react-router-dom';
 
@@ -53,8 +54,8 @@ const AdminSchedulePage: React.FC = () => {
     const [editingSchedule, setEditingSchedule] = useState<EditingSchedule | null>(null);
 
     const [isModalOpen, setIsModalOpen] = useState(false);
-    const [selectedThemeDetails, setSelectedThemeDetails] = useState<ThemeInfoResponse | null>(null);
-    const [isLoadingThemeDetails, setIsLoadingThemeDetails] = useState<boolean>(false);
+    const [selectedThemeDetails] = useState<ThemeInfoResponse | null>(null);
+    const [isLoadingThemeDetails] = useState<boolean>(false);
 
     const navigate = useNavigate();
     const location = useLocation();
@@ -332,10 +333,10 @@ const AdminSchedulePage: React.FC = () => {
                                                             <h4 className="audit-title">감사 정보</h4>
                                                             <div className="audit-body">
                                                                 <p>
-                                                                    <strong>생성일:</strong> {new Date(detailedSchedules[schedule.id].audit!.createdAt).toLocaleString()}
+                                                                    <strong>생성일:</strong> {formatDisplayDateTime(detailedSchedules[schedule.id].audit!.createdAt)}
                                                                 </p>
                                                                 <p>
-                                                                    <strong>수정일:</strong> {new Date(detailedSchedules[schedule.id].audit!.updatedAt).toLocaleString()}
+                                                                    <strong>수정일:</strong> {formatDisplayDateTime(detailedSchedules[schedule.id].audit!.updatedAt)}
                                                                 </p>
                                                                 <p>
                                                                     <strong>생성자:</strong> {detailedSchedules[schedule.id].audit!.createdBy.name}({detailedSchedules[schedule.id].audit!.createdBy.id})

frontend/src/pages/admin/AdminStorePage.tsx

@@ -1,17 +1,18 @@
-import { isLoginRequiredError } from '@_api/apiClient';
-import { fetchSidoList, fetchSigunguList } from '@_api/region/regionAPI';
-import type { SidoResponse, SigunguResponse } from '@_api/region/regionTypes';
-import { createStore, deleteStore, getStoreDetail, getStores, updateStore } from '@_api/store/storeAPI';
+import {isLoginRequiredError} from '@_api/apiClient';
+import {fetchSidoList, fetchSigunguList} from '@_api/region/regionAPI';
+import type {SidoResponse, SigunguResponse} from '@_api/region/regionTypes';
+import {createStore, deleteStore, getStoreDetail, getStores, updateStore} from '@_api/store/storeAPI';
 import {
     type SimpleStoreResponse,
     type StoreDetailResponse,
     type StoreRegisterRequest,
     type UpdateStoreRequest
 } from '@_api/store/storeTypes';
-import { useAdminAuth } from '@_context/AdminAuthContext';
+import {useAdminAuth} from '@_context/AdminAuthContext';
 import '@_css/admin-store-page.css';
-import React, { Fragment, useEffect, useState } from 'react';
-import { useLocation, useNavigate } from 'react-router-dom';
+import {formatDisplayDateTime} from '@_util/DateTimeFormatter';
+import React, {Fragment, useEffect, useState} from 'react';
+import {useLocation, useNavigate} from 'react-router-dom';
 
 const AdminStorePage: React.FC = () => {
     const [stores, setStores] = useState<SimpleStoreResponse[]>([]);
@@ -297,10 +298,10 @@ const AdminStorePage: React.FC = () => {
                                                                         코드:</strong> {detailedStores[store.id].region.code}
                                                                     </p>
                                                                     <p>
-                                                                        <strong>생성일:</strong> {new Date(detailedStores[store.id].audit.createdAt).toLocaleString()}
+                                                                        <strong>생성일:</strong> {formatDisplayDateTime(detailedStores[store.id].audit.createdAt)}
                                                                     </p>
                                                                     <p>
-                                                                        <strong>수정일:</strong> {new Date(detailedStores[store.id].audit.updatedAt).toLocaleString()}
+                                                                        <strong>수정일:</strong> {formatDisplayDateTime(detailedStores[store.id].audit.updatedAt)}
                                                                     </p>
                                                                     <p>
                                                                         <strong>생성자:</strong> {detailedStores[store.id].audit.createdBy.name}({detailedStores[store.id].audit.createdBy.id})

frontend/src/pages/admin/AdminThemeEditPage.tsx

@@ -9,7 +9,8 @@ import {
 import React, {useEffect, useState} from 'react';
 import {useLocation, useNavigate, useParams} from 'react-router-dom';
 import '@_css/admin-theme-edit-page.css';
-import type { AuditInfo } from '@_api/common/commonTypes';
+import type {AuditInfo} from '@_api/common/commonTypes';
+import {formatDisplayDateTime} from '@_util/DateTimeFormatter';
 
 interface ThemeFormData {
     name: string;
@@ -256,8 +257,8 @@ const AdminThemeEditPage: React.FC = () => {
                     <div className="audit-info">
                         <h4 className="audit-title">감사 정보</h4>
                         <div className="audit-body">
-                            <p><strong>생성일:</strong> {new Date(auditInfo.createdAt).toLocaleString()}</p>
-                            <p><strong>수정일:</strong> {new Date(auditInfo.updatedAt).toLocaleString()}</p>
+                            <p><strong>생성일:</strong> {formatDisplayDateTime(auditInfo.createdAt)}</p>
+                            <p><strong>수정일:</strong> {formatDisplayDateTime(auditInfo.updatedAt)}</p>
                             <p><strong>생성자:</strong> {auditInfo.createdBy.name}</p>
                             <p><strong>수정자:</strong> {auditInfo.updatedBy.name}</p>
                         </div>

frontend/tsconfig.app.json

@@ -19,7 +19,6 @@
     "strict": true,
     "noUnusedLocals": true,
     "noUnusedParameters": true,
-    "erasableSyntaxOnly": true,
     "noFallthroughCasesInSwitch": true,
     "noUncheckedSideEffectImports": true,
 

query.md

@@ -1,845 +0,0 @@
-## Auth
-
-**로그인**
-
-```sql
--- 회원
-
--- 이메일로 회원 조회
-SELECT
-    u.id
-FROM
-    users u
-WHERE
-    u.email = ?
-    LIMIT 1;
-
--- 연락처로 회원 조회
-SELECT
-    u.id
-FROM
-    users u
-WHERE
-    u.phone = ?
-    LIMIT 1;
-
--- 회원 추가
-INSERT INTO users (
-    created_at, created_by, email, name, password, phone, region_code,
-    status, updated_at, updated_by, id
-) VALUES (
-             ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?
-         );
-
--- 회원 상태 이력 추가
-INSERT INTO user_status_history (
-    created_at, created_by, reason, status, updated_at, updated_by,
-    user_id, id
-) VALUES (
-             ?, ?, ?, ?, ?, ?, ?, ?
-         );
-```
-
-### Payment
-
-**결제 승인 & 저장**
-
-```sql
--- 결제 정보 추가
-INSERT INTO payment ( approved_at, method, order_id, payment_key, requested_at, reservation_id, status, total_amount, type, id
-) VALUES ( ?, ?, ?, ?, ?, ?, ?, ?, ?, ?
-);
-
--- 결제 상세 정보 추가
-INSERT INTO payment_detail ( payment_id, supplied_amount, vat, id
-) VALUES ( ?, ?, ?, ?
-);
--- 카드 결제 상세 정보 추가
-INSERT INTO payment_card_detail ( amount, approval_number, card_number, card_type, easypay_discount_amount, easypay_provider_code, installment_plan_months, is_interest_free, issuer_code, owner_type, id
-) VALUES ( ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?
-);
-```
-
-**결제 취소**
-
-SQL
-
-```sql
--- 예약 ID로 결제 정보 조회
-SELECT
-    p.id,
-    p.approved_at,
-    p.method,
-    p.order_id,
-    p.payment_key,
-    p.requested_at,
-    p.reservation_id,
-    p.status,
-    p.total_amount,
-    p.type
-FROM
-    payment p
-WHERE
-    p.reservation_id = ?;
-
--- 추가
--- 취소된 결제 정보 추가
-INSERT INTO canceled_payment (
-    cancel_amount, cancel_reason, canceled_at, canceled_by,
-    card_discount_amount, easypay_discount_amount, payment_id,
-    requested_at, transfer_discount_amount, id
-) VALUES (
-    ?, ?, ?, ?, ?, ?, ?, ?, ?, ?
-);
-```
-
-### Region
-
-**모든 시/도 조회**
-
-```sql
-SELECT DISTINCT
-    r.sido_code,
-    r.sido_name
-FROM
-    region r
-ORDER BY
-    r.sido_name;
-```
-
-**시/군/구 조회**
-
-```sql
-SELECT
-    r.sigungu_code,
-    r.sigungu_name
-FROM
-    region r
-WHERE
-    r.sido_code = ?
-GROUP BY
-    r.sigungu_code, r.sigungu_name
-ORDER BY
-    r.sigungu_name;
-```
-
-**지역 코드 조회**
-
-```sql
-SELECT
-    r.code
-FROM
-    region r
-WHERE
-    r.sido_code = ? AND r.sigungu_code = ?;
-```
-
-### Reservation
-
-**Pending 예약 생성**
-
-```sql
--- schedule 조회
-SELECT
-    s.id, s.created_at, s.created_by, s.date, s.status, s.store_id,
-    s.theme_id, s.time, s.updated_at, s.updated_by
-FROM
-    schedule s
-WHERE
-    s.id = ?;
-
--- theme 조회
-SELECT
-    t.id, t.available_minutes, t.created_at, t.created_by, t.description,
-    t.difficulty, t.expected_minutes_from, t.expected_minutes_to,
-    t.is_active, t.max_participants, t.min_participants, t.name,
-    t.price, t.thumbnail_url, t.updated_at, t.updated_by
-FROM
-    theme t
-WHERE
-    t.id = ?;
-
--- 예약 추가
-INSERT INTO reservation (
-    created_at, created_by, participant_count, requirement,
-    reserver_contact, reserver_name, schedule_id, status,
-    updated_at, updated_by, user_id, id
-) VALUES (
-    ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?
-);
-```
-
-**확정**
-
-```sql
--- 예약 조회
-SELECT
-    r.id, r.created_at, r.created_by, r.participant_count, r.requirement,
-    r.reserver_contact, r.reserver_name, r.schedule_id, r.status,
-    r.updated_at, r.updated_by, r.user_id
-FROM
-    reservation r
-WHERE
-    r.id = ?;
-
--- 일정 조회
-SELECT
-    s.id, s.created_at, s.created_by, s.date, s.status, s.store_id,
-    s.theme_id, s.time, s.updated_at, s.updated_by
-FROM
-    schedule s
-WHERE
-    s.id = ?;
-
--- 예약 확정
-UPDATE
-    reservation
-SET
-    participant_count = ?, requirement = ?, reserver_contact = ?,
-    reserver_name = ?, schedule_id = ?, status = ?,
-    updated_at = ?, updated_by = ?, user_id = ?
-WHERE
-    id = ?;
-
--- Schedule 확정
-UPDATE
-    schedule
-SET
-    date = ?, status = ?, store_id = ?, theme_id = ?, time = ?,
-    updated_at = ?, updated_by = ?
-WHERE
-    id = ?;
-```
-
-**취소**
-
-```sql
--- 예약 조회
-SELECT
-    r.id, r.created_at, r.created_by, r.participant_count, r.requirement,
-    r.reserver_contact, r.reserver_name, r.schedule_id, r.status,
-    r.updated_at, r.updated_by, r.user_id
-FROM
-    reservation r
-WHERE
-    r.id = ?;
-
--- 일정 조회
-SELECT
-    s.id, s.created_at, s.created_by, s.date, s.status, s.store_id,
-    s.theme_id, s.time, s.updated_at, s.updated_by
-FROM
-    schedule s
-WHERE
-    s.id = ?;
-
--- 취소 예약 추가
-INSERT INTO canceled_reservation (
-    cancel_reason, canceled_at, canceled_by,
-    reservation_id, status, id
-) VALUES (
-    ?, ?, ?, ?, ?, ?
-);
-
--- 예약 취소
-UPDATE
-    reservation
-SET
-    participant_count = ?, requirement = ?, reserver_contact = ?,
-    reserver_name = ?, schedule_id = ?, status = ?,
-    updated_at = ?, updated_by = ?, user_id = ?
-WHERE
-    id = ?;
-
--- 일정 활성화
-UPDATE
-    schedule
-SET
-    date = ?, status = ?, store_id = ?, theme_id = ?, time = ?,
-    updated_at = ?, updated_by = ?
-WHERE
-    id = ?;
-```
-
-**회원 예약 조회**
-
-```sql
--- 예약 조회
-SELECT
-    r.id, r.created_at, r.created_by, r.participant_count, r.requirement,
-    r.reserver_contact, r.reserver_name, r.schedule_id, r.status,
-    r.updated_at, r.updated_by, r.user_id
-FROM
-    reservation r
-WHERE
-    r.user_id = ? AND r.status IN (?, ?);
-
--- 일정 조회 -> 각 예약별 1개씩(N개)
-SELECT
-    s.id,
-    st.id AS store_id,
-    st.name AS store_name,
-    s.date,
-    s.time,
-    t.id AS theme_id,
-    t.name AS theme_name,
-    t.difficulty,
-    t.available_minutes,
-    s.status
-FROM
-    schedule s
-    JOIN theme t ON t.id = s.theme_id
-    JOIN store st ON st.id = s.store_id
-WHERE
-    s.id = ?;
-```
-
-**예약 상세 조회**
-
-```sql
--- 예약 조회
-SELECT
-    r.id, r.created_at, r.created_by, r.participant_count, r.requirement,
-    r.reserver_contact, r.reserver_name, r.schedule_id, r.status,
-    r.updated_at, r.updated_by, r.user_id
-FROM
-    reservation r
-WHERE
-    r.id = ?;
-
--- 회원 연락처 정보 조회
-SELECT
-    u.id, u.created_at, u.created_by, u.email, u.name, u.password,
-    u.phone, u.region_code, u.status, u.updated_at, u.updated_by
-FROM
-    users u
-WHERE
-    u.id = ?;
-
--- 결제 정보 조회
-SELECT
-    p.id, p.approved_at, p.method, p.order_id, p.payment_key,
-    p.requested_at, p.reservation_id, p.status, p.total_amount, p.type
-FROM
-    payment p
-WHERE
-    p.reservation_id = ?;
-
--- 결제 상세 정보 조회
-SELECT
-    pd.id,
-    CASE
-        WHEN pbt.id IS NOT NULL THEN 1 -- bank_transfer
-        WHEN pcd.id IS NOT NULL THEN 2 -- card
-        WHEN pep.id IS NOT NULL THEN 3 -- easypay
-        WHEN pd.id  IS NOT NULL THEN 0 -- etc
-    END AS payment_type,
-    pd.payment_id, pd.supplied_amount, pd.vat,
-    pbt.bank_code, pbt.settlement_status,
-    pcd.amount, pcd.approval_number, pcd.card_number, pcd.card_type,
-    pcd.easypay_discount_amount, pcd.easypay_provider_code,
-    pcd.installment_plan_months, pcd.is_interest_free, pcd.issuer_code,
-    pcd.owner_type,
-    pep.amount AS easypay_amount,
-    pep.discount_amount AS easypay_discount_amount,
-    pep.easypay_provider_code AS easypay_provider
-FROM
-    payment_detail pd
-    LEFT JOIN payment_bank_transfer_detail pbt ON pd.id = pbt.id
-    LEFT JOIN payment_card_detail pcd ON pd.id = pcd.id
-    LEFT JOIN payment_easypay_prepaid_detail pep ON pd.id = pep.id
-WHERE
-    pd.payment_id = ?;
-
--- 취소 결제 정보 조회
-SELECT
-    cp.id, cp.cancel_amount, cp.cancel_reason, cp.canceled_at,
-    cp.canceled_by, cp.card_discount_amount, cp.easypay_discount_amount,
-    cp.payment_id, cp.requested_at, cp.transfer_discount_amount
-FROM
-    canceled_payment cp
-WHERE
-    cp.payment_id = ?;
-```
-
-### Schedule
-
-**날짜, 시간, 테마로 조회**
-
-```sql
-SELECT
-    s.id,
-    st.id AS store_id,
-    st.name AS store_name,
-    s.date,
-    s.time,
-    t.id AS theme_id,
-    t.name AS theme_name,
-    t.difficulty,
-    t.available_minutes,
-    s.status
-FROM
-    schedule s
-    JOIN theme t ON t.id = s.theme_id AND (? IS NULL OR t.id = ?)
-    JOIN store st ON st.id = s.store_id AND st.id = ?
-WHERE
-    s.date = ?
-```
-
-**감사 정보 조회**
-
-```sql
--- 일정 조회
-SELECT
-    s.id, s.created_at, s.created_by, s.date, s.status, s.store_id,
-    s.theme_id, s.time, s.updated_at, s.updated_by
-FROM
-    schedule s
-WHERE
-    s.id = ?;
-
--- 작업자 조회(createdBy, updatedBy)
-SELECT
-    a.id, a.account, a.created_at, a.created_by, a.name, a.password,
-    a.permission_level, a.phone, a.store_id, a.type, a.updated_at,
-    a.updated_by
-FROM
-    admin a
-WHERE
-    a.id = ?;
-```
-
-**일정 생성**
-
-```sql
--- 날짜, 시간, 테마가 같은 일정 존재 여부 확인
-SELECT EXISTS (
-    SELECT 1
-    FROM schedule s
-    WHERE
-        s.store_id = ?
-        AND s.date = ?
-        AND s.theme_id = ?
-        AND s.time = ?
-);
-
--- 시간이 겹치는 같은 날의 일정이 있는지 확인
-SELECT
-    s.id,
-    st.id AS store_id,
-    st.name AS store_name,
-    s.date,
-    s.time,
-    t.id AS theme_id,
-    t.name AS theme_name,
-    t.difficulty,
-    t.available_minutes,
-    s.status
-FROM
-    schedule s
-    JOIN theme t ON t.id = s.theme_id AND (? IS NULL OR s.theme_id = ?)
-    JOIN store st ON st.id = s.store_id AND st.id = ?
-WHERE
-    s.date = ?
-
--- 일정 추가
-INSERT INTO schedule (
-    created_at, created_by, date, status, store_id,
-    theme_id, time, updated_at, updated_by, id
-) VALUES (
-    ?, ?, ?, ?, ?, ?, ?, ?, ?, ?
-);
-```
-
-**일정 수정**
-
-```sql
--- 조회
-SELECT
-    s.id, s.created_at, s.created_by, s.date, s.status, s.store_id,
-    s.theme_id, s.time, s.updated_at, s.updated_by
-FROM
-    schedule s
-WHERE
-    s.id = ?;
-
--- 수정
-UPDATE
-    schedule
-SET
-    date = ?, status = ?, store_id = ?, theme_id = ?, time = ?,
-    updated_at = ?, updated_by = ?
-WHERE
-    id = ?;
-```
-
-**일정 삭제**
-
-```sql
--- 조회
-SELECT
-    s.id, s.created_at, s.created_by, s.date, s.status, s.store_id,
-    s.theme_id, s.time, s.updated_at, s.updated_by
-FROM
-    schedule s
-WHERE
-    s.id = ?;
-
--- 삭제
-DELETE FROM schedule
-WHERE id = ?;
-```
-
-**상태 → HOLD 변경**
-
-```sql
--- 조회
-SELECT
-    s.id, s.created_at, s.created_by, s.date, s.status, s.store_id,
-    s.theme_id, s.time, s.updated_at, s.updated_by
-FROM
-    schedule s
-WHERE
-    s.id = ?;
-
--- 수정
-UPDATE
-    schedule
-SET
-    date = ?, status = ?, store_id = ?, theme_id = ?, time = ?,
-    updated_at = ?, updated_by = ?
-WHERE
-    id = ?;
-```
-
-### Store
-
-**매장 상세 조회**
-
-```sql
--- 조회
-SELECT
-    s.id, s.address, s.business_reg_num, s.contact, s.created_at,
-    s.created_by, s.name, s.region_code, s.status, s.updated_at,
-    s.updated_by
-FROM
-    store s
-WHERE
-    s.id = ? AND s.status = 'ACTIVE';
-
--- 지역 정보 조회
-SELECT
-    r.code, r.sido_code, r.sido_name, r.sigungu_code, r.sigungu_name
-FROM
-    region r
-WHERE
-    r.code = ?;
-
--- 감사 정보 조회(createdBy, updatedBy)
-SELECT
-    a.id, a.account, a.created_at, a.created_by, a.name, a.password,
-    a.permission_level, a.phone, a.store_id, a.type, a.updated_at,
-    a.updated_by
-FROM
-    admin a
-WHERE
-    a.id = ?;
-```
-
-**매장 등록**
-
-```sql
--- 이름 중복 확인
-SELECT s.id FROM store s WHERE s.name = ? LIMIT 1;
-
--- 연락처 중복 확인
-SELECT s.id FROM store s WHERE s.contact = ? LIMIT 1;
-
--- 주소 중복 확인
-SELECT s.id FROM store s WHERE s.address = ? LIMIT 1;
-
--- 사업자번호 중복 확인
-SELECT s.id FROM store s WHERE s.business_reg_num = ? LIMIT 1;
-
--- 추가
-INSERT INTO store (
-    address, business_reg_num, contact, created_at, created_by,
-    name, region_code, status, updated_at, updated_by, id
-) VALUES (
-    ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?
-);
-```
-
-**매장 수정**
-
-```sql
--- 조회
-SELECT
-    s.id, s.address, s.business_reg_num, s.contact, s.created_at,
-    s.created_by, s.name, s.region_code, s.status, s.updated_at,
-    s.updated_by
-FROM
-    store s
-WHERE
-    s.id = ? AND s.status = 'ACTIVE';
-
--- 수정
-UPDATE
-    store
-SET
-    address = ?, business_reg_num = ?, contact = ?, name = ?,
-    region_code = ?, status = ?, updated_at = ?, updated_by = ?
-WHERE
-    id = ?;
-```
-
-**비활성화(status = DISABLE)**
-
-```sql
--- 조회
-SELECT
-    s.id, s.address, s.business_reg_num, s.contact, s.created_at,
-    s.created_by, s.name, s.region_code, s.status, s.updated_at,
-    s.updated_by
-FROM
-    store s
-WHERE
-    s.id = ? AND s.status = 'ACTIVE';
-
--- 수정
-UPDATE
-    store
-SET
-    address = ?, business_reg_num = ?, contact = ?, name = ?,
-    region_code = ?, status = ?, updated_at = ?, updated_by = ?
-WHERE
-    id = ?;
-```
-
-**모든 매장 조회**
-
-```sql
-SELECT
-    s.id, s.address, s.business_reg_num, s.contact, s.created_at,
-    s.created_by, s.name, s.region_code, s.status, s.updated_at,
-    s.updated_by
-FROM
-    store s
-WHERE
-    s.status = 'ACTIVE'
-    AND (? IS NULL OR s.region_code LIKE ?);
-```
-
-**개별 매장 상세 조회**
-
-```sql
-SELECT
-    s.id, s.address, s.business_reg_num, s.contact, s.created_at,
-    s.created_by, s.name, s.region_code, s.status, s.updated_at,
-    s.updated_by
-FROM
-    store s
-WHERE
-    s.id = ? AND s.status = 'ACTIVE';
-```
-
-### Theme
-
-**생성**
-
-```sql
--- 이름으로 조회
-SELECT
-    t.id
-FROM
-    theme t
-WHERE
-    t.name = ?
-LIMIT 1;
-
--- 추가
-INSERT INTO theme (
-    available_minutes, created_at, created_by, description, difficulty,
-    expected_minutes_from, expected_minutes_to, is_active, max_participants,
-    min_participants, name, price, thumbnail_url, updated_at, updated_by, id
-) VALUES (
-    ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?
-);
-```
-
-**Active인 모든 테마 조회**
-
-```sql
-SELECT
-    t.id, t.available_minutes, t.created_at, t.created_by, t.description,
-    t.difficulty, t.expected_minutes_from, t.expected_minutes_to,
-    t.is_active, t.max_participants, t.min_participants, t.name,
-    t.price, t.thumbnail_url, t.updated_at, t.updated_by
-FROM
-    theme t
-WHERE
-    t.is_active = TRUE;
-```
-
-**테마 목록 조회**
-
-```sql
-SELECT
-    t.id, t.available_minutes, t.created_at, t.created_by, t.description,
-    t.difficulty, t.expected_minutes_from, t.expected_minutes_to,
-    t.is_active, t.max_participants, t.min_participants, t.name,
-    t.price, t.thumbnail_url, t.updated_at, t.updated_by
-FROM
-    theme t;
-```
-
-**감사 정보 포함 개별 테마 상세 조회**
-
-```sql
-SELECT
-    t.id, t.available_minutes, t.created_at, t.created_by, t.description,
-    t.difficulty, t.expected_minutes_from, t.expected_minutes_to,
-    t.is_active, t.max_participants, t.min_participants, t.name,
-    t.price, t.thumbnail_url, t.updated_at, t.updated_by
-FROM
-    theme t
-WHERE
-    t.id = ?;
-```
-
-**개별 테마 조회**
-
-```sql
-SELECT
-    t.id, t.available_minutes, t.created_at, t.created_by, t.description,
-    t.difficulty, t.expected_minutes_from, t.expected_minutes_to,
-    t.is_active, t.max_participants, t.min_participants, t.name,
-    t.price, t.thumbnail_url, t.updated_at, t.updated_by
-FROM
-    theme t
-WHERE
-    t.id = ?;
-```
-
-**삭제**
-
-```sql
--- 조회
-SELECT
-    t.id, t.available_minutes, t.created_at, t.created_by, t.description,
-    t.difficulty, t.expected_minutes_from, t.expected_minutes_to,
-    t.is_active, t.max_participants, t.min_participants, t.name,
-    t.price, t.thumbnail_url, t.updated_at, t.updated_by
-FROM
-    theme t
-WHERE
-    t.id = ?;
-
--- 삭제
-DELETE FROM theme WHERE id = ?;
-```
-
-**수정**
-
-```sql
--- 조회
-SELECT
-    t.id, t.available_minutes, t.created_at, t.created_by, t.description,
-    t.difficulty, t.expected_minutes_from, t.expected_minutes_to,
-    t.is_active, t.max_participants, t.min_participants, t.name,
-    t.price, t.thumbnail_url, t.updated_at, t.updated_by
-FROM
-    theme t
-WHERE
-    t.id = ?;
-
--- 수정
-UPDATE
-    theme
-SET
-    available_minutes = ?, description = ?, difficulty = ?,
-    expected_minutes_from = ?, expected_minutes_to = ?, is_active = ?,
-    max_participants = ?, min_participants = ?, name = ?, price = ?,
-    thumbnail_url = ?, updated_at = ?, updated_by = ?
-WHERE
-    id = ?;
-```
-
-**인기 테마 조회**
-
-```sql
-SELECT
-    t.id, t.name, t.description, t.difficulty, t.thumbnail_url, t.price,
-    t.min_participants, t.max_participants,
-    t.available_minutes, t.expected_minutes_from, t.expected_minutes_to
-FROM
-    theme t
-        JOIN (
-        SELECT
-            s.theme_id, count(*) as reservation_count
-        FROM
-            schedule s
-                JOIN
-            reservation r ON s.id = r.schedule_id AND r.status = 'CONFIRMED'
-        WHERE
-            s.status = 'RESERVED'
-          AND (s.date BETWEEN :startFrom AND :endAt)
-        GROUP BY
-            s.theme_id
-        ORDER BY
-            reservation_count desc
-            LIMIT :count
-    ) ranked_themes ON t.id = ranked_themes.theme_id
-```
-
-### User
-
-**회원가입**
-
-```sql
--- 이메일 중복 확인
-SELECT
-    u.id
-FROM
-    users u
-WHERE
-    u.email = ?
-LIMIT 1;
-
--- 연락처 중복 확인
-SELECT
-    u.id
-FROM
-    users u
-WHERE
-    u.phone = ?
-LIMIT 1;
-
--- 추가
-INSERT INTO users (
-    created_at, created_by, email, name, password, phone, region_code,
-    status, updated_at, updated_by, id
-) VALUES (
-    ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?
-);
-
--- 상태 변경 이력 추가
-INSERT INTO user_status_history (
-    created_at, created_by, reason, status, updated_at, updated_by,
-    user_id, id
-) VALUES (
-    ?, ?, ?, ?, ?, ?, ?, ?
-);
-```
-
-**연락처 정보 조회**
-
-```sql
-SELECT
-    u.id, u.created_at, u.created_by, u.email, u.name, u.password,
-    u.phone, u.region_code, u.status, u.updated_at, u.updated_by
-FROM
-    users u
-WHERE
-    u.id = ?;
-```

service/build.gradle.kts

@@ -8,6 +8,10 @@ dependencies {
     // API docs
     implementation("org.springdoc:springdoc-openapi-starter-webmvc-ui:2.8.13")
 
+    // Cache
+    implementation("org.springframework.boot:spring-boot-starter-cache")
+    implementation("com.github.ben-manes.caffeine:caffeine")
+
     // DB
     runtimeOnly("com.h2database:h2")
     runtimeOnly("com.mysql:mysql-connector-j")

service/src/main/kotlin/com/sangdol/roomescape/RoomescapeApplication.kt

@@ -3,13 +3,23 @@ package com.sangdol.roomescape
 import org.springframework.boot.Banner
 import org.springframework.boot.SpringApplication
 import org.springframework.boot.autoconfigure.SpringBootApplication
+import org.springframework.cache.annotation.EnableCaching
+import org.springframework.scheduling.annotation.EnableAsync
+import org.springframework.scheduling.annotation.EnableScheduling
+import java.util.*
 
+@EnableAsync
+@EnableCaching
+@EnableScheduling
 @SpringBootApplication(
     scanBasePackages = ["com.sangdol.roomescape", "com.sangdol.common"]
 )
 class RoomescapeApplication
 
 fun main(args: Array<String>) {
+    System.setProperty("user.timezone", "UTC")
+    TimeZone.setDefault(TimeZone.getTimeZone("UTC"))
+
     val springApplication = SpringApplication(RoomescapeApplication::class.java)
     springApplication.setBannerMode(Banner.Mode.OFF)
     springApplication.run()

service/src/main/kotlin/com/sangdol/roomescape/admin/business/AdminService.kt

@@ -1,11 +1,11 @@
 package com.sangdol.roomescape.admin.business
 
-import com.sangdol.roomescape.common.types.Auditor
-import com.sangdol.roomescape.admin.business.dto.AdminLoginCredentials
-import com.sangdol.roomescape.admin.business.dto.toCredentials
+import com.sangdol.roomescape.admin.dto.AdminLoginCredentials
+import com.sangdol.roomescape.admin.mapper.toCredentials
 import com.sangdol.roomescape.admin.exception.AdminErrorCode
 import com.sangdol.roomescape.admin.exception.AdminException
 import com.sangdol.roomescape.admin.infrastructure.persistence.AdminRepository
+import com.sangdol.roomescape.common.types.Auditor
 import io.github.oshai.kotlinlogging.KLogger
 import io.github.oshai.kotlinlogging.KotlinLogging
 import org.springframework.data.repository.findByIdOrNull
@@ -20,29 +20,29 @@ class AdminService(
 ) {
     @Transactional(readOnly = true)
     fun findCredentialsByAccount(account: String): AdminLoginCredentials {
-        log.info { "[AdminService.findCredentialsByAccount] 관리자 조회 시작: account=${account}" }
+        log.debug { "[findCredentialsByAccount] 관리자 조회 시작: account=${account}" }
 
         return adminRepository.findByAccount(account)
             ?.let {
-                log.info { "[AdminService.findCredentialsByAccount] 관리자 조회 완료: account=${account}, id=${it.id}" }
+                log.info { "[findCredentialsByAccount] 관리자 조회 완료: account=${account}, id=${it.id}" }
                 it.toCredentials()
             }
             ?: run {
-                log.info { "[AdminService.findCredentialsByAccount] 관리자 조회 실패: account=${account}" }
+                log.debug { "[findCredentialsByAccount] 관리자 조회 실패: account=${account}" }
                 throw AdminException(AdminErrorCode.ADMIN_NOT_FOUND)
             }
     }
 
     @Transactional(readOnly = true)
     fun findOperatorOrUnknown(id: Long): Auditor {
-        log.info { "[AdminService.findOperatorById] 작업자 정보 조회 시작: id=${id}" }
+        log.debug { "[findOperatorById] 작업자 정보 조회 시작: id=${id}" }
 
         return adminRepository.findByIdOrNull(id)?.let { admin ->
             Auditor(admin.id, admin.name).also {
-                log.info { "[AdminService.findOperatorById] 작업자 정보 조회 완료: id=${admin.id}, name=${admin.name}" }
+                log.info { "[findOperatorById] 작업자 정보 조회 완료: id=${admin.id}, name=${admin.name}" }
             }
         } ?: run {
-            log.warn { "[AdminService.findOperatorById] 작업자 정보 조회 실패. id=${id}" }
+            log.warn { "[findOperatorById] 작업자 정보 조회 실패. id=${id}" }
             Auditor.UNKNOWN
         }
     }

service/src/main/kotlin/com/sangdol/roomescape/admin/dto/AdminLoginDTO.kt

@@ -1,10 +1,9 @@
-package com.sangdol.roomescape.admin.business.dto
+package com.sangdol.roomescape.admin.dto
 
-import com.sangdol.roomescape.admin.infrastructure.persistence.AdminEntity
 import com.sangdol.roomescape.admin.infrastructure.persistence.AdminPermissionLevel
 import com.sangdol.roomescape.admin.infrastructure.persistence.AdminType
-import com.sangdol.roomescape.auth.web.LoginCredentials
-import com.sangdol.roomescape.auth.web.LoginSuccessResponse
+import com.sangdol.roomescape.auth.dto.LoginCredentials
+import com.sangdol.roomescape.auth.dto.LoginSuccessResponse
 
 data class AdminLoginCredentials(
     override val id: Long,
@@ -22,15 +21,6 @@ data class AdminLoginCredentials(
     )
 }
 
-fun AdminEntity.toCredentials() = AdminLoginCredentials(
-    id = this.id,
-    password = this.password,
-    name = this.name,
-    type = this.type,
-    storeId = this.storeId,
-    permissionLevel = this.permissionLevel
-)
-
 data class AdminLoginSuccessResponse(
     override val accessToken: String,
     override val name: String,

service/src/main/kotlin/com/sangdol/roomescape/admin/mapper/AdminMappingExtensions.kt

@@ -0,0 +1,13 @@
+package com.sangdol.roomescape.admin.mapper
+
+import com.sangdol.roomescape.admin.dto.AdminLoginCredentials
+import com.sangdol.roomescape.admin.infrastructure.persistence.AdminEntity
+
+fun AdminEntity.toCredentials() = AdminLoginCredentials(
+    id = this.id,
+    password = this.password,
+    name = this.name,
+    type = this.type,
+    storeId = this.storeId,
+    permissionLevel = this.permissionLevel
+)

service/src/main/kotlin/com/sangdol/roomescape/auth/business/AuthService.kt

@@ -1,15 +1,20 @@
 package com.sangdol.roomescape.auth.business
 
 import com.sangdol.roomescape.admin.business.AdminService
+import com.sangdol.roomescape.auth.business.domain.LoginHistoryEvent
+import com.sangdol.roomescape.auth.business.domain.PrincipalType
+import com.sangdol.roomescape.auth.dto.LoginContext
+import com.sangdol.roomescape.auth.dto.LoginCredentials
+import com.sangdol.roomescape.auth.dto.LoginRequest
+import com.sangdol.roomescape.auth.dto.LoginSuccessResponse
 import com.sangdol.roomescape.auth.exception.AuthErrorCode
 import com.sangdol.roomescape.auth.exception.AuthException
 import com.sangdol.roomescape.auth.infrastructure.jwt.JwtUtils
-import com.sangdol.roomescape.auth.web.*
 import com.sangdol.roomescape.user.business.UserService
 import io.github.oshai.kotlinlogging.KLogger
 import io.github.oshai.kotlinlogging.KotlinLogging
+import org.springframework.context.ApplicationEventPublisher
 import org.springframework.stereotype.Service
-import org.springframework.transaction.annotation.Transactional
 
 private val log: KLogger = KotlinLogging.logger {}
 
@@ -21,39 +26,40 @@ const val CLAIM_STORE_ID_KEY = "store_id"
 class AuthService(
     private val adminService: AdminService,
     private val userService: UserService,
-    private val loginHistoryService: LoginHistoryService,
     private val jwtUtils: JwtUtils,
+    private val eventPublisher: ApplicationEventPublisher
 ) {
-    @Transactional(readOnly = true)
     fun login(
         request: LoginRequest,
         context: LoginContext
     ): LoginSuccessResponse {
-        log.info { "[AuthService.login] 로그인 시작: account=${request.account}, type=${request.principalType}, context=${context}" }
+        log.debug { "[login] 로그인 시작: account=${request.account}, type=${request.principalType}, context=${context}" }
         val (credentials, extraClaims) = getCredentials(request)
 
+        val event = LoginHistoryEvent(
+            id = credentials.id,
+            type = request.principalType,
+            ipAddress = context.ipAddress,
+            userAgent = context.userAgent
+        )
+
         try {
             verifyPasswordOrThrow(request, credentials)
 
             val accessToken = jwtUtils.createToken(subject = credentials.id.toString(), claims = extraClaims)
 
-            loginHistoryService.createSuccessHistory(credentials.id, request.principalType, context)
+            eventPublisher.publishEvent(event.onSuccess())
 
             return credentials.toResponse(accessToken).also {
-                log.info { "[AuthService.login] 로그인 완료: account=${request.account}, context=${context}" }
+                log.info { "[login] 로그인 완료: account=${request.account}, context=${context}" }
             }
-
         } catch (e: Exception) {
-            loginHistoryService.createFailureHistory(credentials.id, request.principalType, context)
-
+            eventPublisher.publishEvent(event.onFailure())
             when (e) {
-                is AuthException -> {
-                    log.info { "[AuthService.login] 로그인 실패: account = ${request.account}" }
-                    throw e
-                }
+                is AuthException -> { throw e }
 
                 else -> {
-                    log.warn { "[AuthService.login] 로그인 실패: message=${e.message} account = ${request.account}" }
+                    log.warn { "[login] 로그인 실패: message=${e.message} account = ${request.account}" }
                     throw AuthException(AuthErrorCode.TEMPORARY_AUTH_ERROR)
                 }
             }
@@ -65,7 +71,7 @@ class AuthService(
         credentials: LoginCredentials
     ) {
         if (credentials.password != request.password) {
-            log.info { "[AuthService.login] 비밀번호 불일치로 인한 로그인 실패: account = ${request.account}" }
+            log.debug { "[login] 비밀번호 불일치로 인한 로그인 실패: account = ${request.account}" }
             throw AuthException(AuthErrorCode.LOGIN_FAILED)
         }
     }

service/src/main/kotlin/com/sangdol/roomescape/auth/business/LoginHistoryEventListener.kt

@@ -0,0 +1,92 @@
+package com.sangdol.roomescape.auth.business
+
+import com.sangdol.common.persistence.IDGenerator
+import com.sangdol.roomescape.auth.business.domain.LoginHistoryEvent
+import com.sangdol.roomescape.auth.infrastructure.persistence.LoginHistoryEntity
+import com.sangdol.roomescape.auth.infrastructure.persistence.LoginHistoryRepository
+import com.sangdol.roomescape.auth.mapper.toEntity
+import io.github.oshai.kotlinlogging.KLogger
+import io.github.oshai.kotlinlogging.KotlinLogging
+import jakarta.annotation.PreDestroy
+import org.springframework.beans.factory.annotation.Value
+import org.springframework.context.event.EventListener
+import org.springframework.scheduling.annotation.Async
+import org.springframework.scheduling.annotation.Scheduled
+import org.springframework.stereotype.Component
+import java.util.concurrent.ConcurrentLinkedQueue
+import java.util.concurrent.TimeUnit
+
+private val log: KLogger = KotlinLogging.logger {}
+
+@Component
+class LoginHistoryEventListener(
+    private val idGenerator: IDGenerator,
+    private val loginHistoryRepository: LoginHistoryRepository,
+    private val queue: ConcurrentLinkedQueue<LoginHistoryEntity> = ConcurrentLinkedQueue()
+) {
+
+    @Value(value = "\${spring.jpa.properties.hibernate.jdbc.batch_size:100}")
+    private var batchSize: Int = 0
+
+    @Async
+    @EventListener(classes = [LoginHistoryEvent::class])
+    fun onLoginCompleted(event: LoginHistoryEvent) {
+        log.debug { "[onLoginCompleted] 로그인 이력 저장 이벤트 수신: id=${event.id}, type=${event.type}" }
+
+        queue.add(event.toEntity(idGenerator.create())).also {
+            log.info { "[onLoginCompleted] 로그인 이력 저장 이벤트 큐 저장 완료: id=${event.id}, type=${event.type}" }
+        }
+
+        if (queue.size >= batchSize) {
+            flush()
+        }
+    }
+
+    @Scheduled(fixedRate = 30, timeUnit = TimeUnit.SECONDS)
+    fun flushScheduled() {
+        log.debug { "[flushScheduled] 큐에 저장된 로그인 이력 저장 시작: size=${queue.size}" }
+
+        if (queue.isEmpty()) {
+            log.debug { "[flushScheduled] 큐에 있는 로그인 이력이 없음." }
+            return
+        }
+        flush()
+        log.info { "[flushScheduled] 큐에 저장된 로그인 이력 저장 완료: size=${queue.size}" }
+    }
+
+    @PreDestroy
+    fun flushAll() {
+        log.debug { "[flushAll] 애플리케이션 종료. 큐에 있는 모든 이력 저장 시작: size=${queue.size}" }
+        while (!queue.isEmpty()) {
+            flush()
+        }
+        log.info { "[flushAll] 애플리케이션 종료. 큐에 있는 모든 이력 저장 완료: size=${queue.size}" }
+    }
+
+    private fun flush() {
+        log.debug { "[flush] 큐에 저장된 로그인 이력 저장 시작: size=${queue.size}" }
+
+        if (queue.isEmpty()) {
+            log.debug { "[flush] 큐에 있는 로그인 이력이 없음." }
+            return;
+        }
+
+        val batch = mutableListOf<LoginHistoryEntity>()
+        repeat(batchSize) {
+            val entity: LoginHistoryEntity? = queue.poll()
+
+            if (entity != null) {
+                batch.add(entity)
+            } else {
+                return@repeat
+            }
+        }
+
+        if (batch.isEmpty()) {
+            return
+        }
+        loginHistoryRepository.saveAll(batch).also {
+            log.info { "[flush] 큐에 저장된 로그인 이력 저장 완료: size=${batch.size}" }
+        }
+    }
+}

service/src/main/kotlin/com/sangdol/roomescape/auth/business/LoginHistoryService.kt

@@ -1,63 +0,0 @@
-package com.sangdol.roomescape.auth.business
-
-import com.sangdol.common.persistence.IDGenerator
-import com.sangdol.roomescape.auth.infrastructure.persistence.LoginHistoryEntity
-import com.sangdol.roomescape.auth.infrastructure.persistence.LoginHistoryRepository
-import com.sangdol.roomescape.auth.web.LoginContext
-import com.sangdol.roomescape.auth.web.PrincipalType
-import io.github.oshai.kotlinlogging.KLogger
-import io.github.oshai.kotlinlogging.KotlinLogging
-import org.springframework.stereotype.Service
-import org.springframework.transaction.annotation.Propagation
-import org.springframework.transaction.annotation.Transactional
-
-private val log: KLogger = KotlinLogging.logger {}
-
-@Service
-class LoginHistoryService(
-    private val loginHistoryRepository: LoginHistoryRepository,
-    private val idGenerator: IDGenerator,
-) {
-    @Transactional(propagation = Propagation.REQUIRES_NEW)
-    fun createSuccessHistory(
-        principalId: Long,
-        principalType: PrincipalType,
-        context: LoginContext
-    ) {
-        createHistory(principalId, principalType, success = true, context = context)
-    }
-
-    @Transactional(propagation = Propagation.REQUIRES_NEW)
-    fun createFailureHistory(
-        principalId: Long,
-        principalType: PrincipalType,
-        context: LoginContext
-    ) {
-        createHistory(principalId, principalType, success = false, context = context)
-    }
-
-    private fun createHistory(
-        principalId: Long,
-        principalType: PrincipalType,
-        success: Boolean,
-        context: LoginContext
-    ) {
-        log.info { "[LoginHistoryService.createHistory] 로그인 이력 저장 시작: id=${principalId}, type=${principalType}, success=${success}" }
-
-        runCatching {
-            LoginHistoryEntity(
-                id = idGenerator.create(),
-                principalId = principalId,
-                principalType = principalType,
-                success = success,
-                ipAddress = context.ipAddress,
-                userAgent = context.userAgent,
-            ).also {
-                loginHistoryRepository.save(it)
-                log.info { "[LoginHistoryService.createHistory] 로그인 이력 저장 완료: principalId=${principalId}, historyId=${it.id}" }
-            }
-        }.onFailure {
-            log.warn { "[LoginHistoryService] 로그인 이력 저장 중 예외 발생: message=${it.message} id=${principalId}, type=${principalType}, success=${success}, context=${context}" }
-        }
-    }
-}

service/src/main/kotlin/com/sangdol/roomescape/auth/business/domain/LoginHistoryEvent.kt

@@ -0,0 +1,19 @@
+package com.sangdol.roomescape.auth.business.domain
+
+class LoginHistoryEvent(
+    val id: Long,
+    val type: PrincipalType,
+    var success: Boolean = true,
+    val ipAddress: String,
+    val userAgent: String
+) {
+    fun onSuccess(): LoginHistoryEvent {
+        this.success = true
+        return this
+    }
+
+    fun onFailure(): LoginHistoryEvent {
+        this.success = false
+        return this
+    }
+}

service/src/main/kotlin/com/sangdol/roomescape/auth/business/domain/PrincipalType.kt

@@ -0,0 +1,5 @@
+package com.sangdol.roomescape.auth.business.domain
+
+enum class PrincipalType {
+    USER, ADMIN
+}

service/src/main/kotlin/com/sangdol/roomescape/auth/docs/AuthAPI.kt

@@ -1,11 +1,11 @@
 package com.sangdol.roomescape.auth.docs
 
 import com.sangdol.common.types.web.CommonApiResponse
-import com.sangdol.roomescape.common.types.CurrentUserContext
-import com.sangdol.roomescape.auth.web.LoginRequest
-import com.sangdol.roomescape.auth.web.LoginSuccessResponse
+import com.sangdol.roomescape.auth.dto.LoginRequest
+import com.sangdol.roomescape.auth.dto.LoginSuccessResponse
 import com.sangdol.roomescape.auth.web.support.Public
 import com.sangdol.roomescape.auth.web.support.User
+import com.sangdol.roomescape.common.types.CurrentUserContext
 import io.swagger.v3.oas.annotations.Operation
 import io.swagger.v3.oas.annotations.responses.ApiResponse
 import io.swagger.v3.oas.annotations.responses.ApiResponses

service/src/main/kotlin/com/sangdol/roomescape/auth/dto/AuthDTO.kt

@@ -1,22 +1,12 @@
-package com.sangdol.roomescape.auth.web
+package com.sangdol.roomescape.auth.dto
 
-import com.sangdol.roomescape.admin.infrastructure.persistence.AdminType
-import jakarta.servlet.http.HttpServletRequest
-
-enum class PrincipalType {
-    USER, ADMIN
-}
+import com.sangdol.roomescape.auth.business.domain.PrincipalType
 
 data class LoginContext(
     val ipAddress: String,
     val userAgent: String,
 )
 
-fun HttpServletRequest.toLoginContext() = LoginContext(
-    ipAddress = this.remoteAddr,
-    userAgent = this.getHeader("User-Agent")
-)
-
 data class LoginRequest(
     val account: String,
     val password: String,

service/src/main/kotlin/com/sangdol/roomescape/auth/exception/AuthErrorCode.kt

@@ -1,7 +1,7 @@
 package com.sangdol.roomescape.auth.exception
 
-import com.sangdol.common.types.web.HttpStatus
 import com.sangdol.common.types.exception.ErrorCode
+import com.sangdol.common.types.web.HttpStatus
 
 enum class AuthErrorCode(
     override val httpStatus: HttpStatus,

service/src/main/kotlin/com/sangdol/roomescape/auth/infrastructure/jwt/JwtUtils.kt

@@ -1,5 +1,7 @@
 package com.sangdol.roomescape.auth.infrastructure.jwt
 
+import com.sangdol.roomescape.auth.exception.AuthErrorCode
+import com.sangdol.roomescape.auth.exception.AuthException
 import io.github.oshai.kotlinlogging.KLogger
 import io.github.oshai.kotlinlogging.KotlinLogging
 import io.jsonwebtoken.Claims
@@ -8,8 +10,6 @@ import io.jsonwebtoken.Jwts
 import io.jsonwebtoken.security.Keys
 import org.springframework.beans.factory.annotation.Value
 import org.springframework.stereotype.Component
-import com.sangdol.roomescape.auth.exception.AuthErrorCode
-import com.sangdol.roomescape.auth.exception.AuthException
 import java.util.*
 import javax.crypto.SecretKey
 
@@ -50,7 +50,7 @@ class JwtUtils(
         val claims = extractAllClaims(token)
 
         return claims.subject ?: run {
-            log.info { "[JwtUtils.extractSubject] subject를 찾을 수 없음.: token = ${token}" }
+            log.debug { "[JwtUtils.extractSubject] subject를 찾을 수 없음.: token = ${token}" }
             throw AuthException(AuthErrorCode.INVALID_TOKEN)
         }
     }

service/src/main/kotlin/com/sangdol/roomescape/auth/infrastructure/persistence/LoginHistoryEntity.kt

@@ -1,11 +1,11 @@
 package com.sangdol.roomescape.auth.infrastructure.persistence
 
 import com.sangdol.common.persistence.PersistableBaseEntity
-import com.sangdol.roomescape.auth.web.PrincipalType
+import com.sangdol.roomescape.auth.business.domain.PrincipalType
 import jakarta.persistence.*
 import org.springframework.data.annotation.CreatedDate
 import org.springframework.data.jpa.domain.support.AuditingEntityListener
-import java.time.LocalDateTime
+import java.time.Instant
 
 @Entity
 @Table(name = "login_history")
@@ -24,5 +24,5 @@ class LoginHistoryEntity(
 
     @Column(updatable = false)
     @CreatedDate
-    var createdAt: LocalDateTime? = null,
+    var createdAt: Instant? = null,
 ) : PersistableBaseEntity(id)

service/src/main/kotlin/com/sangdol/roomescape/auth/mapper/AuthMappingExtensions.kt

@@ -0,0 +1,13 @@
+package com.sangdol.roomescape.auth.mapper
+
+import com.sangdol.roomescape.auth.business.domain.LoginHistoryEvent
+import com.sangdol.roomescape.auth.infrastructure.persistence.LoginHistoryEntity
+
+fun LoginHistoryEvent.toEntity(id: Long) = LoginHistoryEntity(
+    id = id,
+    principalId = this.id,
+    principalType = this.type,
+    success = this.success,
+    ipAddress = this.ipAddress,
+    userAgent = this.userAgent
+)

service/src/main/kotlin/com/sangdol/roomescape/auth/web/AuthController.kt

@@ -3,6 +3,9 @@ package com.sangdol.roomescape.auth.web
 import com.sangdol.common.types.web.CommonApiResponse
 import com.sangdol.roomescape.auth.business.AuthService
 import com.sangdol.roomescape.auth.docs.AuthAPI
+import com.sangdol.roomescape.auth.dto.LoginContext
+import com.sangdol.roomescape.auth.dto.LoginRequest
+import com.sangdol.roomescape.auth.dto.LoginSuccessResponse
 import com.sangdol.roomescape.auth.web.support.User
 import com.sangdol.roomescape.common.types.CurrentUserContext
 import jakarta.servlet.http.HttpServletRequest
@@ -36,3 +39,8 @@ class AuthController(
         return ResponseEntity.ok().build()
     }
 }
+
+fun HttpServletRequest.toLoginContext() = LoginContext(
+    ipAddress = this.remoteAddr,
+    userAgent = this.getHeader("User-Agent")
+)

service/src/main/kotlin/com/sangdol/roomescape/auth/web/support/interceptors/AdminInterceptor.kt

@@ -1,12 +1,6 @@
 package com.sangdol.roomescape.auth.web.support.interceptors
 
-import io.github.oshai.kotlinlogging.KLogger
-import io.github.oshai.kotlinlogging.KotlinLogging
-import jakarta.servlet.http.HttpServletRequest
-import jakarta.servlet.http.HttpServletResponse
-import org.springframework.stereotype.Component
-import org.springframework.web.method.HandlerMethod
-import org.springframework.web.servlet.HandlerInterceptor
+import com.sangdol.common.utils.MdcPrincipalIdUtil
 import com.sangdol.roomescape.admin.infrastructure.persistence.AdminPermissionLevel
 import com.sangdol.roomescape.admin.infrastructure.persistence.AdminType
 import com.sangdol.roomescape.admin.infrastructure.persistence.Privilege
@@ -17,7 +11,13 @@ import com.sangdol.roomescape.auth.exception.AuthException
 import com.sangdol.roomescape.auth.infrastructure.jwt.JwtUtils
 import com.sangdol.roomescape.auth.web.support.AdminOnly
 import com.sangdol.roomescape.auth.web.support.accessToken
-import com.sangdol.common.utils.MdcPrincipalIdUtil
+import io.github.oshai.kotlinlogging.KLogger
+import io.github.oshai.kotlinlogging.KotlinLogging
+import jakarta.servlet.http.HttpServletRequest
+import jakarta.servlet.http.HttpServletResponse
+import org.springframework.stereotype.Component
+import org.springframework.web.method.HandlerMethod
+import org.springframework.web.servlet.HandlerInterceptor
 
 private val log: KLogger = KotlinLogging.logger {}
 
@@ -47,7 +47,10 @@ class AdminInterceptor(
             return true
         } catch (e: Exception) {
             when (e) {
-                is AuthException -> { throw e }
+                is AuthException -> {
+                    throw e
+                }
+
                 else -> {
                     log.warn { "[AdminInterceptor] 예상치 못한 예외: message=${e.message}" }
                     throw AuthException(AuthErrorCode.TEMPORARY_AUTH_ERROR)

service/src/main/kotlin/com/sangdol/roomescape/auth/web/support/interceptors/UserInterceptor.kt

@@ -1,5 +1,12 @@
 package com.sangdol.roomescape.auth.web.support.interceptors
 
+import com.sangdol.common.utils.MdcPrincipalIdUtil
+import com.sangdol.roomescape.auth.business.CLAIM_ADMIN_TYPE_KEY
+import com.sangdol.roomescape.auth.exception.AuthErrorCode
+import com.sangdol.roomescape.auth.exception.AuthException
+import com.sangdol.roomescape.auth.infrastructure.jwt.JwtUtils
+import com.sangdol.roomescape.auth.web.support.UserOnly
+import com.sangdol.roomescape.auth.web.support.accessToken
 import io.github.oshai.kotlinlogging.KLogger
 import io.github.oshai.kotlinlogging.KotlinLogging
 import jakarta.servlet.http.HttpServletRequest
@@ -7,13 +14,6 @@ import jakarta.servlet.http.HttpServletResponse
 import org.springframework.stereotype.Component
 import org.springframework.web.method.HandlerMethod
 import org.springframework.web.servlet.HandlerInterceptor
-import com.sangdol.roomescape.auth.business.CLAIM_ADMIN_TYPE_KEY
-import com.sangdol.roomescape.auth.exception.AuthErrorCode
-import com.sangdol.roomescape.auth.exception.AuthException
-import com.sangdol.roomescape.auth.infrastructure.jwt.JwtUtils
-import com.sangdol.roomescape.auth.web.support.UserOnly
-import com.sangdol.roomescape.auth.web.support.accessToken
-import com.sangdol.common.utils.MdcPrincipalIdUtil
 
 private val log: KLogger = KotlinLogging.logger {}
 
@@ -47,7 +47,10 @@ class UserInterceptor(
             return true
         } catch (e: Exception) {
             when (e) {
-                is AuthException -> { throw e }
+                is AuthException -> {
+                    throw e
+                }
+
                 else -> {
                     log.warn { "[UserInterceptor] 예상치 못한 예외: message=${e.message}" }
                     throw AuthException(AuthErrorCode.TEMPORARY_AUTH_ERROR)

service/src/main/kotlin/com/sangdol/roomescape/auth/web/support/resolver/UserContextResolver.kt

@@ -1,5 +1,12 @@
 package com.sangdol.roomescape.auth.web.support.resolver
 
+import com.sangdol.common.utils.MdcPrincipalIdUtil
+import com.sangdol.roomescape.auth.exception.AuthErrorCode
+import com.sangdol.roomescape.auth.exception.AuthException
+import com.sangdol.roomescape.auth.infrastructure.jwt.JwtUtils
+import com.sangdol.roomescape.auth.web.support.User
+import com.sangdol.roomescape.auth.web.support.accessToken
+import com.sangdol.roomescape.common.types.CurrentUserContext
 import io.github.oshai.kotlinlogging.KLogger
 import io.github.oshai.kotlinlogging.KotlinLogging
 import jakarta.servlet.http.HttpServletRequest
@@ -9,19 +16,12 @@ import org.springframework.web.bind.support.WebDataBinderFactory
 import org.springframework.web.context.request.NativeWebRequest
 import org.springframework.web.method.support.HandlerMethodArgumentResolver
 import org.springframework.web.method.support.ModelAndViewContainer
-import com.sangdol.roomescape.auth.exception.AuthErrorCode
-import com.sangdol.roomescape.auth.exception.AuthException
-import com.sangdol.roomescape.auth.infrastructure.jwt.JwtUtils
-import com.sangdol.roomescape.auth.web.support.User
-import com.sangdol.roomescape.auth.web.support.accessToken
-import com.sangdol.roomescape.user.business.UserService
 
 private val log: KLogger = KotlinLogging.logger {}
 
 @Component
 class UserContextResolver(
     private val jwtUtils: JwtUtils,
-    private val userService: UserService,
 ) : HandlerMethodArgumentResolver {
 
     override fun supportsParameter(parameter: MethodParameter): Boolean {
@@ -38,9 +38,11 @@ class UserContextResolver(
         val token: String? = request.accessToken()
 
         try {
-            val id: Long = jwtUtils.extractSubject(token).toLong()
+            val id: Long = jwtUtils.extractSubject(token).also {
+                MdcPrincipalIdUtil.set(it)
+            }.toLong()
 
-            return userService.findContextById(id)
+            return CurrentUserContext(id = id)
         } catch (e: Exception) {
             log.info { "[UserContextResolver] 회원 조회 실패. message=${e.message}" }
             throw AuthException(AuthErrorCode.MEMBER_NOT_FOUND)

service/src/main/kotlin/com/sangdol/roomescape/common/config/LocalDatabaseCleaner.kt

@@ -11,7 +11,7 @@ import org.springframework.stereotype.Component
 private val log: KLogger = KotlinLogging.logger {}
 
 @Component
-@Profile("local")
+@Profile("!deploy & local")
 class LocalDatabaseCleaner(
     private val jdbcTemplate: JdbcTemplate
 ) {

service/src/main/kotlin/com/sangdol/roomescape/common/config/RoomescapeLogMaskingConverter.kt

@@ -1,9 +1,9 @@
 package com.sangdol.roomescape.common.config
 
-import com.sangdol.common.web.config.JacksonConfig
 import com.sangdol.common.log.message.AbstractLogMaskingConverter
+import com.sangdol.common.web.config.JacksonConfig
 
-class RoomescapeLogMaskingConverter: AbstractLogMaskingConverter(
+class RoomescapeLogMaskingConverter : AbstractLogMaskingConverter(
     sensitiveKeys = setOf("password", "accessToken", "phone"),
     objectMapper = JacksonConfig().objectMapper()
 )

service/src/main/kotlin/com/sangdol/roomescape/common/config/SlowQueryLoggerConfig.kt

@@ -9,11 +9,9 @@ import org.springframework.boot.jdbc.DataSourceBuilder
 import org.springframework.context.annotation.Bean
 import org.springframework.context.annotation.Configuration
 import org.springframework.context.annotation.Primary
-import org.springframework.context.annotation.Profile
 import javax.sql.DataSource
 
 @Configuration
-@Profile("deploy")
 @EnableConfigurationProperties(SlowQueryProperties::class)
 class ProxyDataSourceConfig {
 
@@ -36,7 +34,6 @@ class ProxyDataSourceConfig {
         .build()
 }
 
-@Profile("deploy")
 @ConfigurationProperties(prefix = "slow-query")
 data class SlowQueryProperties(
     val loggerName: String,

service/src/main/kotlin/com/sangdol/roomescape/common/config/SwaggerConfig.kt

@@ -1,7 +1,6 @@
 package com.sangdol.roomescape.common.config
 
 import io.swagger.v3.oas.models.OpenAPI
-import io.swagger.v3.oas.models.info.Info
 import org.springframework.context.annotation.Bean
 import org.springframework.context.annotation.Configuration
 

service/src/main/kotlin/com/sangdol/roomescape/common/config/TraceConfig.kt

@@ -0,0 +1,20 @@
+package com.sangdol.roomescape.common.config
+
+import io.micrometer.observation.ObservationPredicate
+import org.springframework.context.annotation.Bean
+import org.springframework.context.annotation.Configuration
+
+@Configuration
+class TraceConfig {
+
+    companion object {
+        val scheduleTaskName = "tasks.scheduled.execution"
+    }
+
+    @Bean
+    fun excludeSchedulerPredicate(): ObservationPredicate {
+        return ObservationPredicate { name, context ->
+            !name.equals(scheduleTaskName)
+        }
+    }
+}

service/src/main/kotlin/com/sangdol/roomescape/common/config/WebMvcConfig.kt

@@ -1,12 +1,12 @@
 package com.sangdol.roomescape.common.config
 
+import com.sangdol.roomescape.auth.web.support.interceptors.AdminInterceptor
+import com.sangdol.roomescape.auth.web.support.interceptors.UserInterceptor
+import com.sangdol.roomescape.auth.web.support.resolver.UserContextResolver
 import org.springframework.context.annotation.Configuration
 import org.springframework.web.method.support.HandlerMethodArgumentResolver
 import org.springframework.web.servlet.config.annotation.InterceptorRegistry
 import org.springframework.web.servlet.config.annotation.WebMvcConfigurer
-import com.sangdol.roomescape.auth.web.support.interceptors.AdminInterceptor
-import com.sangdol.roomescape.auth.web.support.interceptors.UserInterceptor
-import com.sangdol.roomescape.auth.web.support.resolver.UserContextResolver
 
 @Configuration
 class WebMvcConfig(

service/src/main/kotlin/com/sangdol/roomescape/common/types/AuditingInfo.kt

@@ -1,6 +1,6 @@
 package com.sangdol.roomescape.common.types
 
-import java.time.LocalDateTime
+import java.time.Instant
 
 data class Auditor(
     val id: Long,
@@ -12,8 +12,8 @@ data class Auditor(
 }
 
 data class AuditingInfo(
-    val createdAt: LocalDateTime,
+    val createdAt: Instant,
     val createdBy: Auditor,
-    val updatedAt: LocalDateTime,
+    val updatedAt: Instant,
     val updatedBy: Auditor,
 )

service/src/main/kotlin/com/sangdol/roomescape/common/types/CurrentUserContext.kt

@@ -1,6 +1,5 @@
 package com.sangdol.roomescape.common.types
 
 data class CurrentUserContext(
-    val id: Long,
-    val name: String,
+    val id: Long
 )

service/src/main/kotlin/com/sangdol/roomescape/order/business/OrderService.kt

@@ -0,0 +1,69 @@
+package com.sangdol.roomescape.order.business
+
+import com.sangdol.common.persistence.TransactionExecutionUtil
+import com.sangdol.common.types.exception.ErrorCode
+import com.sangdol.common.types.exception.RoomescapeException
+import com.sangdol.roomescape.order.exception.OrderErrorCode
+import com.sangdol.roomescape.order.exception.OrderException
+import com.sangdol.roomescape.payment.business.PaymentService
+import com.sangdol.roomescape.payment.dto.PaymentConfirmRequest
+import com.sangdol.roomescape.reservation.business.ReservationService
+import com.sangdol.roomescape.reservation.business.event.ReservationConfirmEvent
+import com.sangdol.roomescape.reservation.dto.ReservationStateResponse
+import com.sangdol.roomescape.schedule.business.ScheduleService
+import com.sangdol.roomescape.schedule.dto.ScheduleStateResponse
+import io.github.oshai.kotlinlogging.KLogger
+import io.github.oshai.kotlinlogging.KotlinLogging
+import org.springframework.context.ApplicationEventPublisher
+import org.springframework.stereotype.Service
+
+private val log: KLogger = KotlinLogging.logger {}
+
+@Service
+class OrderService(
+    private val reservationService: ReservationService,
+    private val scheduleService: ScheduleService,
+    private val paymentService: PaymentService,
+    private val transactionExecutionUtil: TransactionExecutionUtil,
+    private val orderValidator: OrderValidator,
+    private val eventPublisher: ApplicationEventPublisher
+) {
+
+    fun confirm(reservationId: Long, paymentConfirmRequest: PaymentConfirmRequest) {
+        val paymentKey = paymentConfirmRequest.paymentKey
+
+        log.debug { "[confirm] 결제 및 예약 확정 시작: reservationId=${reservationId}, paymentKey=${paymentKey}" }
+        try {
+            transactionExecutionUtil.withNewTransaction(isReadOnly = false) {
+                validateCanConfirm(reservationId)
+                reservationService.markInProgress(reservationId)
+            }
+
+            paymentService.requestConfirm(reservationId, paymentConfirmRequest)
+            eventPublisher.publishEvent(ReservationConfirmEvent(reservationId))
+
+            log.info { "[confirm] 결제 처리 및 예약 확정 이벤트 발행 완료: reservationId=${reservationId}, paymentKey=${paymentKey}" }
+        } catch (e: Exception) {
+            val errorCode: ErrorCode = if (e is RoomescapeException) {
+                e.errorCode
+            } else {
+                OrderErrorCode.ORDER_UNEXPECTED_ERROR
+            }
+
+            throw OrderException(errorCode, e.message ?: errorCode.message)
+        }
+    }
+
+    private fun validateCanConfirm(reservationId: Long) {
+        log.debug { "[validateAndMarkInProgress] 예약 확정 가능 여부 검증 시작: reservationId=${reservationId}" }
+        val reservation: ReservationStateResponse = reservationService.findStatusWithLock(reservationId)
+        val schedule: ScheduleStateResponse = scheduleService.findStateWithLock(reservation.scheduleId)
+
+        try {
+            orderValidator.validateCanConfirm(reservation, schedule)
+        } catch (e: OrderException) {
+            val errorCode = OrderErrorCode.NOT_CONFIRMABLE
+            throw OrderException(errorCode, e.message)
+        }
+    }
+}

service/src/main/kotlin/com/sangdol/roomescape/order/business/OrderValidator.kt

@@ -0,0 +1,55 @@
+package com.sangdol.roomescape.order.business
+
+import com.sangdol.common.utils.KoreaDateTime
+import com.sangdol.roomescape.order.exception.OrderErrorCode
+import com.sangdol.roomescape.order.exception.OrderException
+import com.sangdol.roomescape.reservation.dto.ReservationStateResponse
+import com.sangdol.roomescape.reservation.infrastructure.persistence.ReservationStatus
+import com.sangdol.roomescape.schedule.dto.ScheduleStateResponse
+import com.sangdol.roomescape.schedule.infrastructure.persistence.ScheduleStatus
+import io.github.oshai.kotlinlogging.KLogger
+import io.github.oshai.kotlinlogging.KotlinLogging
+import org.springframework.stereotype.Component
+import java.time.LocalDateTime
+
+private val log: KLogger = KotlinLogging.logger {}
+
+@Component
+class OrderValidator {
+    fun validateCanConfirm(
+        reservation: ReservationStateResponse,
+        schedule: ScheduleStateResponse
+    ) {
+        validateReservationStatus(reservation)
+        validateScheduleStatus(schedule)
+    }
+
+    private fun validateReservationStatus(reservation: ReservationStateResponse) {
+        when (reservation.status) {
+            ReservationStatus.CONFIRMED -> {
+                throw OrderException(OrderErrorCode.ORDER_ALREADY_CONFIRMED)
+            }
+            ReservationStatus.EXPIRED -> {
+                throw OrderException(OrderErrorCode.EXPIRED_RESERVATION)
+            }
+            ReservationStatus.CANCELED -> {
+                throw OrderException(OrderErrorCode.CANCELED_RESERVATION)
+            }
+            else -> {}
+        }
+    }
+
+    private fun validateScheduleStatus(schedule: ScheduleStateResponse) {
+        if (schedule.status != ScheduleStatus.HOLD) {
+            log.debug { "[validateScheduleStatus] 일정 상태 오류: status=${schedule.status}" }
+            throw OrderException(OrderErrorCode.EXPIRED_RESERVATION)
+        }
+
+        val scheduleDateTime = LocalDateTime.of(schedule.date, schedule.startFrom)
+        val nowDateTime = KoreaDateTime.now()
+        if (scheduleDateTime.isBefore(nowDateTime)) {
+            log.debug { "[validateScheduleStatus] 과거 시간인 일정으로 인한 실패: scheduleDateTime=${scheduleDateTime}(KST), now=${nowDateTime}(KST)" }
+            throw OrderException(OrderErrorCode.PAST_SCHEDULE)
+        }
+    }
+}

service/src/main/kotlin/com/sangdol/roomescape/order/docs/OrderAPI.kt

@@ -0,0 +1,22 @@
+package com.sangdol.roomescape.order.docs
+
+import com.sangdol.common.types.web.CommonApiResponse
+import com.sangdol.roomescape.auth.web.support.UserOnly
+import com.sangdol.roomescape.payment.dto.PaymentConfirmRequest
+import io.swagger.v3.oas.annotations.Operation
+import io.swagger.v3.oas.annotations.responses.ApiResponse
+import io.swagger.v3.oas.annotations.responses.ApiResponses
+import org.springframework.http.ResponseEntity
+import org.springframework.web.bind.annotation.PathVariable
+import org.springframework.web.bind.annotation.RequestBody
+
+interface OrderAPI {
+
+    @UserOnly
+    @Operation(summary = "결제 및 예약 완료 처리")
+    @ApiResponses(ApiResponse(responseCode = "200"))
+    fun confirm(
+        @PathVariable("reservationId") reservationId: Long,
+        @RequestBody request: PaymentConfirmRequest
+    ): ResponseEntity<CommonApiResponse<Unit>>
+}

service/src/main/kotlin/com/sangdol/roomescape/order/exception/OrderErrorCode.kt

@@ -0,0 +1,19 @@
+package com.sangdol.roomescape.order.exception
+
+import com.sangdol.common.types.exception.ErrorCode
+import com.sangdol.common.types.web.HttpStatus
+
+enum class OrderErrorCode(
+    override val httpStatus: HttpStatus,
+    override val errorCode: String,
+    override val message: String
+) : ErrorCode {
+    NOT_CONFIRMABLE(HttpStatus.CONFLICT, "B000", "예약을 확정할 수 없어요."),
+    ORDER_ALREADY_CONFIRMED(HttpStatus.CONFLICT, "B001", "이미 완료된 예약이에요."),
+    EXPIRED_RESERVATION(HttpStatus.CONFLICT, "B002", "결제 가능 시간이 지나 만료된 예약이에요. 처음부터 다시 시도해주세요."),
+    CANCELED_RESERVATION(HttpStatus.CONFLICT, "B003", "이미 취소된 예약이에요. 본인이 취소하지 않았다면 매장에 문의해주세요."),
+    PAST_SCHEDULE(HttpStatus.CONFLICT, "B004", "지난 일정은 예약할 수 없어요."),
+
+    ORDER_UNEXPECTED_ERROR(HttpStatus.INTERNAL_SERVER_ERROR, "B999", "예상치 못한 예외가 발생했어요. 잠시 후 다시 시도해주세요.")
+    ;
+}

service/src/main/kotlin/com/sangdol/roomescape/order/exception/OrderException.kt

@@ -0,0 +1,9 @@
+package com.sangdol.roomescape.order.exception
+
+import com.sangdol.common.types.exception.ErrorCode
+import com.sangdol.common.types.exception.RoomescapeException
+
+class OrderException(
+    override val errorCode: ErrorCode,
+    override val message: String = errorCode.message,
+) : RoomescapeException(errorCode, message)

service/src/main/kotlin/com/sangdol/roomescape/order/web/OrderController.kt

@@ -0,0 +1,25 @@
+package com.sangdol.roomescape.order.web
+
+import com.sangdol.common.types.web.CommonApiResponse
+import com.sangdol.roomescape.order.business.OrderService
+import com.sangdol.roomescape.order.docs.OrderAPI
+import com.sangdol.roomescape.payment.dto.PaymentConfirmRequest
+import org.springframework.http.ResponseEntity
+import org.springframework.web.bind.annotation.*
+
+@RestController
+@RequestMapping("/orders")
+class OrderController(
+    private val orderService: OrderService
+) : OrderAPI {
+
+    @PostMapping("/{reservationId}/confirm")
+    override fun confirm(
+        @PathVariable("reservationId") reservationId: Long,
+        @RequestBody request: PaymentConfirmRequest
+    ): ResponseEntity<CommonApiResponse<Unit>> {
+        orderService.confirm(reservationId, request)
+
+        return ResponseEntity.ok(CommonApiResponse())
+    }
+}

service/src/main/kotlin/com/sangdol/roomescape/payment/business/PaymentService.kt

@@ -1,131 +1,153 @@
 package com.sangdol.roomescape.payment.business
 
-import io.github.oshai.kotlinlogging.KLogger
-import io.github.oshai.kotlinlogging.KotlinLogging
-import org.springframework.stereotype.Service
-import org.springframework.transaction.annotation.Transactional
+import com.sangdol.common.persistence.IDGenerator
 import com.sangdol.common.persistence.TransactionExecutionUtil
+import com.sangdol.roomescape.payment.business.domain.UserFacingPaymentErrorCode
+import com.sangdol.roomescape.payment.dto.*
+import com.sangdol.roomescape.payment.exception.ExternalPaymentException
 import com.sangdol.roomescape.payment.exception.PaymentErrorCode
 import com.sangdol.roomescape.payment.exception.PaymentException
-import com.sangdol.roomescape.payment.infrastructure.client.PaymentClientCancelResponse
-import com.sangdol.roomescape.payment.infrastructure.client.PaymentClientConfirmResponse
 import com.sangdol.roomescape.payment.infrastructure.client.TosspayClient
 import com.sangdol.roomescape.payment.infrastructure.persistence.*
-import com.sangdol.roomescape.payment.web.*
+import com.sangdol.roomescape.payment.mapper.toEntity
+import com.sangdol.roomescape.payment.mapper.toEvent
+import com.sangdol.roomescape.payment.mapper.toResponse
+import io.github.oshai.kotlinlogging.KLogger
+import io.github.oshai.kotlinlogging.KotlinLogging
+import org.springframework.context.ApplicationEventPublisher
+import org.springframework.stereotype.Service
+import org.springframework.transaction.annotation.Transactional
 
 private val log: KLogger = KotlinLogging.logger {}
 
 @Service
 class PaymentService(
+    private val idGenerator: IDGenerator,
     private val paymentClient: TosspayClient,
     private val paymentRepository: PaymentRepository,
     private val paymentDetailRepository: PaymentDetailRepository,
     private val canceledPaymentRepository: CanceledPaymentRepository,
-    private val paymentWriter: PaymentWriter,
     private val transactionExecutionUtil: TransactionExecutionUtil,
+    private val eventPublisher: ApplicationEventPublisher
 ) {
-    fun confirm(reservationId: Long, request: PaymentConfirmRequest): PaymentCreateResponse {
-        val clientConfirmResponse: PaymentClientConfirmResponse = paymentClient.confirm(
-            paymentKey = request.paymentKey,
-            orderId = request.orderId,
-            amount = request.amount,
-        )
+    fun requestConfirm(reservationId: Long, request: PaymentConfirmRequest): PaymentGatewayResponse {
+        log.debug { "[requestConfirm] 결제 요청 시작: paymentKey=${request.paymentKey}" }
+        try {
+            return paymentClient.confirm(request.paymentKey, request.orderId, request.amount).also {
+                eventPublisher.publishEvent(it.toEvent(reservationId))
+                log.info { "[requestConfirm] 결제 및 이벤트 발행 완료: paymentKey=${request.paymentKey}" }
+            }
+        } catch (e: Exception) {
+            when(e) {
+                is ExternalPaymentException -> {
+                    val errorCode = if (e.httpStatusCode in 400..<500) {
+                        PaymentErrorCode.PAYMENT_CLIENT_ERROR
+                    } else {
+                        PaymentErrorCode.PAYMENT_PROVIDER_ERROR
+                    }
 
-        return transactionExecutionUtil.withNewTransaction(isReadOnly = false) {
-            val payment: PaymentEntity = paymentWriter.createPayment(
-                reservationId = reservationId,
-                orderId = request.orderId,
-                paymentType = request.paymentType,
-                paymentClientConfirmResponse = clientConfirmResponse
-            )
-            val detail: PaymentDetailEntity = paymentWriter.createDetail(clientConfirmResponse, payment.id)
+                    val message = if (UserFacingPaymentErrorCode.contains(e.errorCode)) {
+                        "${errorCode.message}(${e.message})"
+                    } else {
+                        errorCode.message
+                    }
 
-            PaymentCreateResponse(paymentId = payment.id, detailId = detail.id)
-        } ?: run {
-            log.warn { "[PaymentService.confirm] 결제 확정 중 예상치 못한 null 반환" }
+                    throw PaymentException(errorCode, message)
+                }
+                else -> {
+                    log.warn(e) { "[requestConfirm] 예상치 못한 결제 실패: paymentKey=${request.paymentKey}" }
                     throw PaymentException(PaymentErrorCode.PAYMENT_UNEXPECTED_ERROR)
                 }
             }
+        }
+    }
 
     fun cancel(userId: Long, request: PaymentCancelRequest) {
         val payment: PaymentEntity = findByReservationIdOrThrow(request.reservationId)
 
-        val clientCancelResponse: PaymentClientCancelResponse = paymentClient.cancel(
+        val clientCancelResponse: PaymentGatewayCancelResponse = paymentClient.cancel(
             paymentKey = payment.paymentKey,
             amount = payment.totalAmount,
             cancelReason = request.cancelReason
         )
 
         transactionExecutionUtil.withNewTransaction(isReadOnly = false) {
-            paymentWriter.cancel(
-                userId = userId,
-                payment = payment,
-                requestedAt = request.requestedAt,
-                cancelResponse = clientCancelResponse
-            )
+            val payment = findByReservationIdOrThrow(request.reservationId).apply { this.cancel() }
+
+            clientCancelResponse.cancels.toEntity(
+                id = idGenerator.create(),
+                paymentId = payment.id,
+                cancelRequestedAt = request.requestedAt,
+                canceledBy = userId
+            ).also {
+                canceledPaymentRepository.save(it)
+                log.debug { "[cancel] 결제 취소 정보 저장 완료: payment.id=${payment.id}" }
+            }
         }.also {
-            log.info { "[PaymentService.cancel] 결제 취소 완료: paymentId=${payment.id}" }
+            log.info { "[cancel] 결제 취소 완료: paymentId=${payment.id}" }
         }
     }
 
     @Transactional(readOnly = true)
-    fun findDetailByReservationId(reservationId: Long): PaymentWithDetailResponse? {
-        log.info { "[PaymentService.findDetailByReservationId] 예약 결제 정보 조회 시작: reservationId=$reservationId" }
+    fun findDetailByReservationId(reservationId: Long): PaymentResponse? {
+        log.debug { "[findDetailByReservationId] 예약 결제 정보 조회 시작: reservationId=$reservationId" }
 
         val payment: PaymentEntity? = findByReservationIdOrNull(reservationId)
         val paymentDetail: PaymentDetailEntity? = payment?.let { findDetailByPaymentIdOrNull(it.id) }
         val cancelDetail: CanceledPaymentEntity? = payment?.let { findCancelByPaymentIdOrNull(it.id) }
 
-        return payment?.toDetailResponse(
-            detail = paymentDetail?.toPaymentDetailResponse(),
-            cancel = cancelDetail?.toCancelDetailResponse()
-        )
+        return payment?.toResponse(
+            detail = paymentDetail?.toResponse(),
+            cancel = cancelDetail?.toResponse()
+        ).also {
+            log.info { "[findDetailByReservationId] 예약 결제 정보 조회 완료: reservationId=$reservationId" }
+        }
     }
 
     private fun findByReservationIdOrThrow(reservationId: Long): PaymentEntity {
-        log.info { "[PaymentService.findByReservationIdOrThrow] 결제 정보 조회 시작: reservationId=: $reservationId" }
+        log.debug { "[findByReservationIdOrThrow] 결제 정보 조회 시작: reservationId=: $reservationId" }
 
         return paymentRepository.findByReservationId(reservationId)
-            ?.also { log.info { "[PaymentService.findByReservationIdOrThrow] 결제 정보 조회 완료: reservationId=$reservationId, paymentId=${it.id}" } }
+            ?.also { log.info { "[findByReservationIdOrThrow] 결제 정보 조회 완료: reservationId=$reservationId, paymentId=${it.id}" } }
             ?: run {
-                log.warn { "[PaymentService.findByReservationIdOrThrow] 결제 정보 조회 실패: reservationId=$reservationId" }
+                log.warn { "[findByReservationIdOrThrow] 결제 정보 조회 실패: reservationId=$reservationId" }
                 throw PaymentException(PaymentErrorCode.PAYMENT_NOT_FOUND)
             }
     }
 
     private fun findByReservationIdOrNull(reservationId: Long): PaymentEntity? {
-        log.info { "[PaymentService.findByReservationIdOrThrow] 결제 정보 조회 시작: reservationId=: $reservationId" }
+        log.debug { "[findByReservationIdOrThrow] 결제 정보 조회 시작: reservationId=: $reservationId" }
 
         return paymentRepository.findByReservationId(reservationId)
             .also {
                 if (it != null) {
-                    log.info { "[PaymentService.findByReservationIdOrThrow] 결제 정보 조회 완료: reservationId=$reservationId, paymentId=${it.id}" }
+                    log.info { "[findByReservationIdOrThrow] 결제 정보 조회 완료: reservationId=$reservationId, paymentId=${it.id}" }
                 } else {
-                    log.warn { "[PaymentService.findByReservationIdOrThrow] 결제 정보 조회 실패: reservationId=$reservationId" }
+                    log.warn { "[findByReservationIdOrThrow] 결제 정보 조회 실패: reservationId=$reservationId" }
                 }
             }
     }
 
     private fun findDetailByPaymentIdOrNull(paymentId: Long): PaymentDetailEntity? {
-        log.info { "[PaymentService.findDetailByPaymentIdOrThrow] 결제 상세 정보 조회 시작: paymentId=$paymentId" }
+        log.debug { "[findDetailByPaymentIdOrThrow] 결제 상세 정보 조회 시작: paymentId=$paymentId" }
 
         return paymentDetailRepository.findByPaymentId(paymentId).also {
             if (it != null) {
-                log.info { "[PaymentService.findDetailByPaymentIdOrThrow] 결제 상세 정보 조회 완료: paymentId=$paymentId, detailId=${it.id}}" }
+                log.info { "[findDetailByPaymentIdOrThrow] 결제 상세 정보 조회 완료: paymentId=$paymentId, detailId=${it.id}}" }
             } else {
-                log.warn { "[PaymentService.findDetailByPaymentIdOrThrow] 결제 상세 정보 조회 실패: paymentId=$paymentId" }
+                log.warn { "[findDetailByPaymentIdOrThrow] 결제 상세 정보 조회 실패: paymentId=$paymentId" }
             }
         }
     }
 
     private fun findCancelByPaymentIdOrNull(paymentId: Long): CanceledPaymentEntity? {
-        log.info { "[PaymentService.findDetailByReservationId] 취소 결제 정보 조회 시작: paymentId=${paymentId}" }
+        log.debug { "[findDetailByReservationId] 취소 결제 정보 조회 시작: paymentId=${paymentId}" }
 
         return canceledPaymentRepository.findByPaymentId(paymentId).also {
             if (it == null) {
-                log.info { "[PaymentService.findDetailByReservationId] 취소 결제 정보가 없음: paymentId=${paymentId}" }
+                log.info { "[findDetailByReservationId] 취소 결제 정보가 없음: paymentId=${paymentId}" }
             } else {
-                log.info { "[PaymentService.findDetailByReservationId] 취소 결제 정보 조회 완료: paymentId=${paymentId}, cancelId=${it.id}" }
+                log.info { "[findDetailByReservationId] 취소 결제 정보 조회 완료: paymentId=${paymentId}, cancelId=${it.id}" }
             }
         }
     }

service/src/main/kotlin/com/sangdol/roomescape/payment/business/PaymentWriter.kt

@@ -1,80 +0,0 @@
-package com.sangdol.roomescape.payment.business
-
-import com.sangdol.common.persistence.IDGenerator
-import com.sangdol.roomescape.payment.exception.PaymentErrorCode
-import com.sangdol.roomescape.payment.exception.PaymentException
-import com.sangdol.roomescape.payment.infrastructure.client.*
-import com.sangdol.roomescape.payment.infrastructure.common.PaymentMethod
-import com.sangdol.roomescape.payment.infrastructure.common.PaymentType
-import com.sangdol.roomescape.payment.infrastructure.persistence.*
-import io.github.oshai.kotlinlogging.KLogger
-import io.github.oshai.kotlinlogging.KotlinLogging
-import org.springframework.stereotype.Component
-import java.time.LocalDateTime
-
-private val log: KLogger = KotlinLogging.logger {}
-
-@Component
-class PaymentWriter(
-    private val paymentRepository: PaymentRepository,
-    private val paymentDetailRepository: PaymentDetailRepository,
-    private val canceledPaymentRepository: CanceledPaymentRepository,
-    private val idGenerator: IDGenerator,
-) {
-
-    fun createPayment(
-        reservationId: Long,
-        orderId: String,
-        paymentType: PaymentType,
-        paymentClientConfirmResponse: PaymentClientConfirmResponse
-    ): PaymentEntity {
-        log.info { "[PaymentWriterV2.createPayment] 결제 승인 및 결제 정보 저장 시작: reservationId=${reservationId}, paymentKey=${paymentClientConfirmResponse.paymentKey}" }
-
-        return paymentClientConfirmResponse.toEntity(
-            id = idGenerator.create(), reservationId, orderId, paymentType
-        ).also {
-            paymentRepository.save(it)
-            log.info { "[PaymentWriterV2.createPayment] 결제 승인 및 결제 정보 저장 완료: reservationId=${reservationId}, payment.id=${it.id}" }
-        }
-    }
-
-    fun createDetail(
-        paymentResponse: PaymentClientConfirmResponse,
-        paymentId: Long,
-    ): PaymentDetailEntity {
-        val method: PaymentMethod = paymentResponse.method
-        val id = idGenerator.create()
-
-        if (method == PaymentMethod.TRANSFER) {
-            return paymentDetailRepository.save(paymentResponse.toTransferDetailEntity(id, paymentId))
-        }
-        if (method == PaymentMethod.EASY_PAY && paymentResponse.card == null) {
-            return paymentDetailRepository.save(paymentResponse.toEasypayPrepaidDetailEntity(id, paymentId))
-        }
-        if (paymentResponse.card != null) {
-            return paymentDetailRepository.save(paymentResponse.toCardDetailEntity(id, paymentId))
-        }
-        throw PaymentException(PaymentErrorCode.NOT_SUPPORTED_PAYMENT_TYPE)
-    }
-
-    fun cancel(
-        userId: Long,
-        payment: PaymentEntity,
-        requestedAt: LocalDateTime,
-        cancelResponse: PaymentClientCancelResponse
-    ): CanceledPaymentEntity {
-        log.debug { "[PaymentWriterV2.cancelPayment] 결제 취소 정보 저장 시작: payment.id=${payment.id}" }
-
-        paymentRepository.save(payment.apply { this.cancel() })
-
-        return cancelResponse.cancels.toEntity(
-            id = idGenerator.create(),
-            paymentId = payment.id,
-            cancelRequestedAt = requestedAt,
-            canceledBy = userId
-        ).also {
-            canceledPaymentRepository.save(it)
-            log.debug { "[PaymentWriterV2.cancelPayment] 결제 취소 정보 저장 완료: payment.id=${payment.id}" }
-        }
-    }
-}

service/src/main/kotlin/com/sangdol/roomescape/payment/business/domain/PaymentDefinitions.kt

@@ -1,10 +1,10 @@
-package com.sangdol.roomescape.payment.infrastructure.common
+package com.sangdol.roomescape.payment.business.domain
 
 import com.fasterxml.jackson.annotation.JsonCreator
-import io.github.oshai.kotlinlogging.KLogger
-import io.github.oshai.kotlinlogging.KotlinLogging
 import com.sangdol.roomescape.payment.exception.PaymentErrorCode
 import com.sangdol.roomescape.payment.exception.PaymentException
+import io.github.oshai.kotlinlogging.KLogger
+import io.github.oshai.kotlinlogging.KotlinLogging
 
 private val log: KLogger = KotlinLogging.logger {}
 

service/src/main/kotlin/com/sangdol/roomescape/payment/business/domain/PaymentDetail.kt

@@ -0,0 +1,38 @@
+package com.sangdol.roomescape.payment.business.domain
+
+abstract class PaymentDetail
+
+class BankTransferPaymentDetail(
+    val bankCode: BankCode,
+    val settlementStatus: String,
+): PaymentDetail()
+
+class CardPaymentDetail(
+    val issuerCode: CardIssuerCode,
+    val number: String,
+    val amount: Int,
+    val cardType: CardType,
+    val ownerType: CardOwnerType,
+    val isInterestFree: Boolean,
+    val approveNo: String,
+    val installmentPlanMonths: Int
+): PaymentDetail()
+
+class EasypayCardPaymentDetail(
+    val issuerCode: CardIssuerCode,
+    val number: String,
+    val amount: Int,
+    val cardType: CardType,
+    val ownerType: CardOwnerType,
+    val isInterestFree: Boolean,
+    val approveNo: String,
+    val installmentPlanMonths: Int,
+    val easypayProvider: EasyPayCompanyCode,
+    val easypayDiscountAmount: Int,
+): PaymentDetail()
+
+class EasypayPrepaidPaymentDetail(
+    val provider: EasyPayCompanyCode,
+    val amount: Int,
+    val discountAmount: Int,
+): PaymentDetail()

service/src/main/kotlin/com/sangdol/roomescape/payment/business/domain/UserFacingPaymentErrorCode.kt

@@ -0,0 +1,42 @@
+package com.sangdol.roomescape.payment.business.domain
+
+enum class UserFacingPaymentErrorCode {
+    ALREADY_PROCESSED_PAYMENT,
+    EXCEED_MAX_CARD_INSTALLMENT_PLAN,
+    NOT_ALLOWED_POINT_USE,
+    INVALID_REJECT_CARD,
+    BELOW_MINIMUM_AMOUNT,
+    INVALID_CARD_EXPIRATION,
+    INVALID_STOPPED_CARD,
+    EXCEED_MAX_DAILY_PAYMENT_COUNT,
+    NOT_SUPPORTED_INSTALLMENT_PLAN_CARD_OR_MERCHANT,
+    INVALID_CARD_INSTALLMENT_PLAN,
+    NOT_SUPPORTED_MONTHLY_INSTALLMENT_PLAN,
+    EXCEED_MAX_PAYMENT_AMOUNT,
+    INVALID_CARD_LOST_OR_STOLEN,
+    RESTRICTED_TRANSFER_ACCOUNT,
+    INVALID_CARD_NUMBER,
+    EXCEED_MAX_ONE_DAY_WITHDRAW_AMOUNT,
+    EXCEED_MAX_ONE_TIME_WITHDRAW_AMOUNT,
+    CARD_PROCESSING_ERROR,
+    EXCEED_MAX_AMOUNT,
+    INVALID_ACCOUNT_INFO_RE_REGISTER,
+    NOT_AVAILABLE_PAYMENT,
+    EXCEED_MAX_MONTHLY_PAYMENT_AMOUNT,
+    REJECT_ACCOUNT_PAYMENT,
+    REJECT_CARD_PAYMENT,
+    REJECT_CARD_COMPANY,
+    FORBIDDEN_REQUEST,
+    EXCEED_MAX_AUTH_COUNT,
+    EXCEED_MAX_ONE_DAY_AMOUNT,
+    NOT_AVAILABLE_BANK,
+    INVALID_PASSWORD,
+    FDS_ERROR,
+    ;
+
+    companion object {
+        fun contains(code: String): Boolean {
+            return entries.any { it.name == code }
+        }
+    }
+}

service/src/main/kotlin/com/sangdol/roomescape/payment/business/event/PaymentEvent.kt

@@ -0,0 +1,22 @@
+package com.sangdol.roomescape.payment.business.event
+
+import com.sangdol.roomescape.payment.business.domain.PaymentDetail
+import com.sangdol.roomescape.payment.business.domain.PaymentMethod
+import com.sangdol.roomescape.payment.business.domain.PaymentStatus
+import com.sangdol.roomescape.payment.business.domain.PaymentType
+import java.time.Instant
+
+class PaymentEvent(
+    val reservationId: Long,
+    val paymentKey: String,
+    val orderId: String,
+    val type: PaymentType,
+    val status: PaymentStatus,
+    val totalAmount: Int,
+    val vat: Int,
+    val suppliedAmount: Int,
+    val method: PaymentMethod,
+    val requestedAt: Instant,
+    val approvedAt: Instant,
+    val detail: PaymentDetail
+)

service/src/main/kotlin/com/sangdol/roomescape/payment/business/event/PaymentEventListener.kt

@@ -0,0 +1,44 @@
+package com.sangdol.roomescape.payment.business.event
+
+import com.sangdol.common.persistence.IDGenerator
+import com.sangdol.roomescape.payment.infrastructure.persistence.PaymentDetailEntity
+import com.sangdol.roomescape.payment.infrastructure.persistence.PaymentDetailRepository
+import com.sangdol.roomescape.payment.infrastructure.persistence.PaymentEntity
+import com.sangdol.roomescape.payment.infrastructure.persistence.PaymentRepository
+import com.sangdol.roomescape.payment.mapper.toDetailEntity
+import com.sangdol.roomescape.payment.mapper.toEntity
+import io.github.oshai.kotlinlogging.KLogger
+import io.github.oshai.kotlinlogging.KotlinLogging
+import org.springframework.context.event.EventListener
+import org.springframework.scheduling.annotation.Async
+import org.springframework.stereotype.Component
+import org.springframework.transaction.annotation.Transactional
+
+private val log: KLogger = KotlinLogging.logger {}
+
+@Component
+class PaymentEventListener(
+    private val idGenerator: IDGenerator,
+    private val paymentRepository: PaymentRepository,
+    private val paymentDetailRepository: PaymentDetailRepository
+) {
+
+    @Async
+    @EventListener
+    @Transactional
+    fun handlePaymentEvent(event: PaymentEvent) {
+        val reservationId = event.reservationId
+
+        log.debug { "[handlePaymentEvent] 결제 정보 저장 이벤트 수신: reservationId=${reservationId}, paymentKey=${event.paymentKey}" }
+
+        val paymentId = idGenerator.create()
+        val paymentEntity: PaymentEntity = event.toEntity(paymentId)
+        paymentRepository.save(paymentEntity)
+
+        val paymentDetailId = idGenerator.create()
+        val paymentDetailEntity: PaymentDetailEntity = event.toDetailEntity(id = paymentDetailId, paymentId = paymentId)
+        paymentDetailRepository.save(paymentDetailEntity)
+
+        log.info { "[handlePaymentEvent] 결제 정보 저장 이벤트 처리 완료: reservationId=${reservationId}, paymentId=${paymentId}, paymentDetailId=${paymentDetailId}" }
+    }
+}

service/src/main/kotlin/com/sangdol/roomescape/payment/docs/PaymentAPI.kt

@@ -2,29 +2,17 @@ package com.sangdol.roomescape.payment.docs
 
 import com.sangdol.common.types.web.CommonApiResponse
 import com.sangdol.roomescape.auth.web.support.User
-import com.sangdol.roomescape.auth.web.support.UserOnly
 import com.sangdol.roomescape.common.types.CurrentUserContext
-import com.sangdol.roomescape.payment.web.PaymentCancelRequest
-import com.sangdol.roomescape.payment.web.PaymentConfirmRequest
-import com.sangdol.roomescape.payment.web.PaymentCreateResponse
+import com.sangdol.roomescape.payment.dto.PaymentCancelRequest
 import io.swagger.v3.oas.annotations.Operation
 import io.swagger.v3.oas.annotations.responses.ApiResponse
 import io.swagger.v3.oas.annotations.responses.ApiResponses
 import jakarta.validation.Valid
 import org.springframework.http.ResponseEntity
 import org.springframework.web.bind.annotation.RequestBody
-import org.springframework.web.bind.annotation.RequestParam
 
 interface PaymentAPI {
 
-    @UserOnly
-    @Operation(summary = "결제 승인")
-    @ApiResponses(ApiResponse(responseCode = "200", useReturnTypeSchema = true))
-    fun confirmPayment(
-        @RequestParam(required = true) reservationId: Long,
-        @Valid @RequestBody request: PaymentConfirmRequest
-    ): ResponseEntity<CommonApiResponse<PaymentCreateResponse>>
-
     @Operation(summary = "결제 취소")
     @ApiResponses(ApiResponse(responseCode = "200", useReturnTypeSchema = true))
     fun cancelPayment(

service/src/main/kotlin/com/sangdol/roomescape/payment/dto/PaymentClientDTO.kt

@@ -0,0 +1,59 @@
+package com.sangdol.roomescape.payment.dto
+
+import com.fasterxml.jackson.databind.annotation.JsonDeserialize
+import com.sangdol.roomescape.payment.business.domain.*
+import com.sangdol.roomescape.payment.infrastructure.client.CancelDetailDeserializer
+import java.time.OffsetDateTime
+
+data class PaymentGatewayResponse(
+    val paymentKey: String,
+    val orderId: String,
+    val type: PaymentType,
+    val status: PaymentStatus,
+    val totalAmount: Int,
+    val vat: Int,
+    val suppliedAmount: Int,
+    val method: PaymentMethod,
+    val card: CardDetailResponse?,
+    val easyPay: EasyPayDetailResponse?,
+    val transfer: TransferDetailResponse?,
+    val requestedAt: OffsetDateTime,
+    val approvedAt: OffsetDateTime,
+)
+
+data class PaymentGatewayCancelResponse(
+    val status: PaymentStatus,
+    @JsonDeserialize(using = CancelDetailDeserializer::class)
+    val cancels: CancelDetail,
+)
+
+data class CardDetailResponse(
+    val issuerCode: CardIssuerCode,
+    val number: String,
+    val amount: Int,
+    val cardType: CardType,
+    val ownerType: CardOwnerType,
+    val isInterestFree: Boolean,
+    val approveNo: String,
+    val installmentPlanMonths: Int
+)
+
+data class EasyPayDetailResponse(
+    val provider: EasyPayCompanyCode,
+    val amount: Int,
+    val discountAmount: Int,
+)
+
+data class TransferDetailResponse(
+    val bankCode: BankCode,
+    val settlementStatus: String,
+)
+
+data class CancelDetail(
+    val cancelAmount: Int,
+    val cardDiscountAmount: Int,
+    val transferDiscountAmount: Int,
+    val easyPayDiscountAmount: Int,
+    val canceledAt: OffsetDateTime,
+    val cancelReason: String
+)

service/src/main/kotlin/com/sangdol/roomescape/payment/dto/PaymentFindDTO.kt

@@ -0,0 +1,49 @@
+package com.sangdol.roomescape.payment.dto
+
+import com.sangdol.roomescape.payment.business.domain.PaymentStatus
+import java.time.Instant
+
+data class PaymentResponse(
+    val orderId: String,
+    val totalAmount: Int,
+    val method: String,
+    val status: PaymentStatus,
+    val requestedAt: Instant,
+    val approvedAt: Instant,
+    val detail: PaymentDetailResponse?,
+    val cancel: PaymentCancelDetailResponse?,
+)
+
+sealed class PaymentDetailResponse {
+    data class CardDetailResponse(
+        val type: String = "CARD",
+        val issuerCode: String,
+        val cardType: String,
+        val ownerType: String,
+        val cardNumber: String,
+        val amount: Int,
+        val approvalNumber: String,
+        val installmentPlanMonths: Int,
+        val easypayProviderName: String?,
+        val easypayDiscountAmount: Int?,
+    ) : PaymentDetailResponse()
+
+    data class BankTransferDetailResponse(
+        val type: String = "BANK_TRANSFER",
+        val bankName: String,
+    ) : PaymentDetailResponse()
+
+    data class EasyPayPrepaidDetailResponse(
+        val type: String = "EASYPAY_PREPAID",
+        val providerName: String,
+        val amount: Int,
+        val discountAmount: Int,
+    ) : PaymentDetailResponse()
+}
+
+data class PaymentCancelDetailResponse(
+    val cancellationRequestedAt: Instant,
+    val cancellationApprovedAt: Instant?,
+    val cancelReason: String,
+    val canceledBy: Long,
+)

service/src/main/kotlin/com/sangdol/roomescape/payment/dto/PaymentWriteDTO.kt

@@ -0,0 +1,15 @@
+package com.sangdol.roomescape.payment.dto
+
+import java.time.Instant
+
+data class PaymentConfirmRequest(
+    val paymentKey: String,
+    val orderId: String,
+    val amount: Int,
+)
+
+data class PaymentCancelRequest(
+    val reservationId: Long,
+    val cancelReason: String,
+    val requestedAt: Instant = Instant.now()
+)

service/src/main/kotlin/com/sangdol/roomescape/payment/exception/PaymentErrorCode.kt

@@ -1,7 +1,7 @@
 package com.sangdol.roomescape.payment.exception
 
-import com.sangdol.common.types.web.HttpStatus
 import com.sangdol.common.types.exception.ErrorCode
+import com.sangdol.common.types.web.HttpStatus
 
 enum class PaymentErrorCode(
     override val httpStatus: HttpStatus,

service/src/main/kotlin/com/sangdol/roomescape/payment/exception/PaymentException.kt

@@ -6,3 +6,9 @@ class PaymentException(
     override val errorCode: PaymentErrorCode,
     override val message: String = errorCode.message
 ) : RoomescapeException(errorCode, message)
+
+class ExternalPaymentException(
+    val httpStatusCode: Int,
+    val errorCode: String,
+    override val message: String
+) : RuntimeException(message)

service/src/main/kotlin/com/sangdol/roomescape/payment/exception/PaymentExceptionHandler.kt

@@ -0,0 +1,40 @@
+package com.sangdol.roomescape.payment.exception
+
+import com.sangdol.common.types.web.CommonErrorResponse
+import com.sangdol.common.web.support.log.WebLogMessageConverter
+import io.github.oshai.kotlinlogging.KLogger
+import io.github.oshai.kotlinlogging.KotlinLogging
+import jakarta.servlet.http.HttpServletRequest
+import org.springframework.http.ResponseEntity
+import org.springframework.web.bind.annotation.ExceptionHandler
+import org.springframework.web.bind.annotation.RestControllerAdvice
+
+private val log: KLogger = KotlinLogging.logger {}
+
+@RestControllerAdvice
+class PaymentExceptionHandler(
+    private val logMessageConverter: WebLogMessageConverter
+) {
+    @ExceptionHandler(PaymentException::class)
+    fun handlePaymentException(
+        servletRequest: HttpServletRequest,
+        e: PaymentException
+    ): ResponseEntity<CommonErrorResponse> {
+        val errorCode = e.errorCode
+        val httpStatus = errorCode.httpStatus
+        val errorResponse = CommonErrorResponse(errorCode, e.message)
+
+        log.warn {
+            logMessageConverter.convertToErrorResponseMessage(
+                servletRequest = servletRequest,
+                httpStatus = httpStatus,
+                responseBody = errorResponse,
+                exception = if (e.message == errorCode.message) null else e
+            )
+        }
+
+        return ResponseEntity
+            .status(httpStatus.value())
+            .body(errorResponse)
+    }
+}

service/src/main/kotlin/com/sangdol/roomescape/payment/infrastructure/client/TosspayCancelDTO.kt

@@ -1,67 +0,0 @@
-package com.sangdol.roomescape.payment.infrastructure.client
-
-import com.fasterxml.jackson.core.JsonParser
-import com.fasterxml.jackson.databind.DeserializationContext
-import com.fasterxml.jackson.databind.JsonNode
-import com.fasterxml.jackson.databind.annotation.JsonDeserialize
-import com.sangdol.roomescape.payment.infrastructure.common.PaymentStatus
-import com.sangdol.roomescape.payment.infrastructure.persistence.CanceledPaymentEntity
-import java.time.LocalDateTime
-import java.time.OffsetDateTime
-
-data class PaymentClientCancelResponse(
-    val status: PaymentStatus,
-    @JsonDeserialize(using = CancelDetailDeserializer::class)
-    val cancels: CancelDetail,
-)
-
-data class CancelDetail(
-    val cancelAmount: Int,
-    val cardDiscountAmount: Int,
-    val transferDiscountAmount: Int,
-    val easyPayDiscountAmount: Int,
-    val canceledAt: OffsetDateTime,
-    val cancelReason: String
-)
-
-fun CancelDetail.toEntity(
-    id: Long,
-    paymentId: Long,
-    canceledBy: Long,
-    cancelRequestedAt: LocalDateTime
-) = CanceledPaymentEntity(
-    id = id,
-    canceledAt = this.canceledAt,
-    requestedAt = cancelRequestedAt,
-    paymentId = paymentId,
-    canceledBy = canceledBy,
-    cancelReason = this.cancelReason,
-    cancelAmount = this.cancelAmount,
-    cardDiscountAmount = this.cardDiscountAmount,
-    transferDiscountAmount = this.transferDiscountAmount,
-    easypayDiscountAmount = this.easyPayDiscountAmount
-)
-
-class CancelDetailDeserializer : com.fasterxml.jackson.databind.JsonDeserializer<CancelDetail>() {
-    override fun deserialize(
-        p: JsonParser,
-        ctxt: DeserializationContext
-    ): CancelDetail? {
-        val node: JsonNode = p.codec.readTree(p) ?: return null
-
-        val targetNode = when {
-            node.isArray && !node.isEmpty -> node[0]
-            node.isObject -> node
-            else -> return null
-        }
-
-        return CancelDetail(
-            cancelAmount = targetNode.get("cancelAmount").asInt(),
-            cardDiscountAmount = targetNode.get("cardDiscountAmount").asInt(),
-            transferDiscountAmount = targetNode.get("transferDiscountAmount").asInt(),
-            easyPayDiscountAmount = targetNode.get("easyPayDiscountAmount").asInt(),
-            canceledAt = OffsetDateTime.parse(targetNode.get("canceledAt").asText()),
-            cancelReason = targetNode.get("cancelReason").asText()
-        )
-    }
-}

service/src/main/kotlin/com/sangdol/roomescape/payment/infrastructure/client/TosspayClient.kt

@@ -1,6 +1,9 @@
 package com.sangdol.roomescape.payment.infrastructure.client
 
 import com.fasterxml.jackson.databind.ObjectMapper
+import com.sangdol.roomescape.payment.dto.PaymentGatewayCancelResponse
+import com.sangdol.roomescape.payment.dto.PaymentGatewayResponse
+import com.sangdol.roomescape.payment.exception.ExternalPaymentException
 import com.sangdol.roomescape.payment.exception.PaymentErrorCode
 import com.sangdol.roomescape.payment.exception.PaymentException
 import io.github.oshai.kotlinlogging.KLogger
@@ -28,9 +31,9 @@ class TosspayClient(
         paymentKey: String,
         orderId: String,
         amount: Int,
-    ): PaymentClientConfirmResponse {
+    ): PaymentGatewayResponse {
         val startTime = System.currentTimeMillis()
-        log.info { "[TosspayClient.confirm] 결제 승인 요청: paymentKey=$paymentKey, orderId=$orderId, amount=$amount" }
+        log.debug { "[TosspayClient.confirm] 결제 승인 요청: paymentKey=$paymentKey, orderId=$orderId, amount=$amount" }
 
         return confirmClient.request(paymentKey, orderId, amount)
             .also {
@@ -42,9 +45,9 @@ class TosspayClient(
         paymentKey: String,
         amount: Int,
         cancelReason: String
-    ): PaymentClientCancelResponse {
+    ): PaymentGatewayCancelResponse {
         val startTime = System.currentTimeMillis()
-        log.info { "[TosspayClient.cancel] 결제 취소 요청: paymentKey=$paymentKey, amount=$amount, cancelReason=$cancelReason" }
+        log.debug { "[TosspayClient.cancel] 결제 취소 요청: paymentKey=$paymentKey, amount=$amount, cancelReason=$cancelReason" }
 
         return cancelClient.request(paymentKey, amount, cancelReason).also {
             log.info { "[TosspayClient.cancel] 결제 취소 완료: duration_ms=${System.currentTimeMillis() - startTime}ms, paymentKey=$paymentKey" }
@@ -62,7 +65,7 @@ private class ConfirmClient(
 
     private val errorHandler: TosspayErrorHandler = TosspayErrorHandler(objectMapper)
 
-    fun request(paymentKey: String, orderId: String, amount: Int): PaymentClientConfirmResponse {
+    fun request(paymentKey: String, orderId: String, amount: Int): PaymentGatewayResponse {
         val response = client.post()
             .uri(CONFIRM_URI)
             .contentType(MediaType.APPLICATION_JSON)
@@ -83,7 +86,7 @@ private class ConfirmClient(
 
         log.debug { "[TosspayClient.confirm] 응답 수신: json = $response" }
 
-        return objectMapper.readValue(response, PaymentClientConfirmResponse::class.java)
+        return objectMapper.readValue(response, PaymentGatewayResponse::class.java)
     }
 }
 
@@ -101,7 +104,7 @@ private class CancelClient(
         paymentKey: String,
         amount: Int,
         cancelReason: String
-    ): PaymentClientCancelResponse {
+    ): PaymentGatewayCancelResponse {
         val response = client.post()
             .uri(CANCEL_URI, paymentKey)
             .body(
@@ -119,7 +122,7 @@ private class CancelClient(
             }
 
         log.debug { "[TosspayClient.cancel] 응답 수신: json = $response" }
-        return objectMapper.readValue(response, PaymentClientCancelResponse::class.java)
+        return objectMapper.readValue(response, PaymentGatewayCancelResponse::class.java)
     }
 }
 
@@ -138,9 +141,20 @@ private class TosspayErrorHandler(
         response: ClientHttpResponse
     ): Nothing {
         val requestType: String = paymentRequestType(url)
-        log.warn { "[TosspayClient] $requestType 요청 실패: response: ${parseResponse(response)}" }
+        val errorResponse: TosspayErrorResponse = parseResponse(response)
+        val status = response.statusCode
 
-        throw PaymentException(paymentErrorCode(response.statusCode))
+        if (status.is5xxServerError) {
+            log.warn { "[TosspayClient] $requestType 요청 실패: response: $errorResponse" }
+        } else {
+            log.info { "[TosspayClient] $requestType 요청 실패: response: $errorResponse" }
+        }
+
+        throw ExternalPaymentException(
+            httpStatusCode = status.value(),
+            errorCode = errorResponse.code,
+            message = errorResponse.message
+        )
     }
 
     private fun paymentRequestType(url: URI): String {

service/src/main/kotlin/com/sangdol/roomescape/payment/infrastructure/client/TosspayConfirmDTO.kt

@@ -1,118 +0,0 @@
-package com.sangdol.roomescape.payment.infrastructure.client
-
-import com.sangdol.roomescape.payment.exception.PaymentErrorCode
-import com.sangdol.roomescape.payment.exception.PaymentException
-import com.sangdol.roomescape.payment.infrastructure.common.*
-import com.sangdol.roomescape.payment.infrastructure.persistence.PaymentBankTransferDetailEntity
-import com.sangdol.roomescape.payment.infrastructure.persistence.PaymentCardDetailEntity
-import com.sangdol.roomescape.payment.infrastructure.persistence.PaymentEasypayPrepaidDetailEntity
-import com.sangdol.roomescape.payment.infrastructure.persistence.PaymentEntity
-import java.time.OffsetDateTime
-
-data class PaymentClientConfirmResponse(
-    val paymentKey: String,
-    val status: PaymentStatus,
-    val totalAmount: Int,
-    val vat: Int,
-    val suppliedAmount: Int,
-    val method: PaymentMethod,
-    val card: CardDetail?,
-    val easyPay: EasyPayDetail?,
-    val transfer: TransferDetail?,
-    val requestedAt: OffsetDateTime,
-    val approvedAt: OffsetDateTime,
-)
-
-fun PaymentClientConfirmResponse.toEntity(
-    id: Long,
-    reservationId: Long,
-    orderId: String,
-    paymentType: PaymentType
-) = PaymentEntity(
-    id = id,
-    reservationId = reservationId,
-    paymentKey = this.paymentKey,
-    orderId = orderId,
-    totalAmount = this.totalAmount,
-    requestedAt = this.requestedAt,
-    approvedAt = this.approvedAt,
-    type = paymentType,
-    method = this.method,
-    status = this.status,
-)
-
-data class CardDetail(
-    val issuerCode: CardIssuerCode,
-    val number: String,
-    val amount: Int,
-    val cardType: CardType,
-    val ownerType: CardOwnerType,
-    val isInterestFree: Boolean,
-    val approveNo: String,
-    val installmentPlanMonths: Int
-)
-
-fun PaymentClientConfirmResponse.toCardDetailEntity(id: Long, paymentId: Long): PaymentCardDetailEntity {
-    val cardDetail = this.card ?: throw PaymentException(PaymentErrorCode.PAYMENT_UNEXPECTED_ERROR)
-
-    return PaymentCardDetailEntity(
-        id = id,
-        paymentId = paymentId,
-        suppliedAmount = this.suppliedAmount,
-        vat = this.vat,
-        issuerCode = cardDetail.issuerCode,
-        cardType = cardDetail.cardType,
-        ownerType = cardDetail.ownerType,
-        amount = cardDetail.amount,
-        cardNumber = cardDetail.number,
-        approvalNumber = cardDetail.approveNo,
-        installmentPlanMonths = cardDetail.installmentPlanMonths,
-        isInterestFree = cardDetail.isInterestFree,
-        easypayProviderCode = this.easyPay?.provider,
-        easypayDiscountAmount = this.easyPay?.discountAmount,
-    )
-}
-
-data class EasyPayDetail(
-    val provider: EasyPayCompanyCode,
-    val amount: Int,
-    val discountAmount: Int,
-)
-
-fun PaymentClientConfirmResponse.toEasypayPrepaidDetailEntity(
-    id: Long,
-    paymentId: Long
-): PaymentEasypayPrepaidDetailEntity {
-    val easyPayDetail = this.easyPay ?: throw PaymentException(PaymentErrorCode.PAYMENT_UNEXPECTED_ERROR)
-
-    return PaymentEasypayPrepaidDetailEntity(
-        id = id,
-        paymentId = paymentId,
-        suppliedAmount = this.suppliedAmount,
-        vat = this.vat,
-        easypayProviderCode = easyPayDetail.provider,
-        amount = easyPayDetail.amount,
-        discountAmount = easyPayDetail.discountAmount
-    )
-}
-
-data class TransferDetail(
-    val bankCode: BankCode,
-    val settlementStatus: String,
-)
-
-fun PaymentClientConfirmResponse.toTransferDetailEntity(
-    id: Long,
-    paymentId: Long
-): PaymentBankTransferDetailEntity {
-    val transferDetail = this.transfer ?: throw PaymentException(PaymentErrorCode.PAYMENT_UNEXPECTED_ERROR)
-
-    return PaymentBankTransferDetailEntity(
-        id = id,
-        paymentId = paymentId,
-        suppliedAmount = this.suppliedAmount,
-        vat = this.vat,
-        bankCode = transferDetail.bankCode,
-        settlementStatus = transferDetail.settlementStatus
-    )
-}

service/src/main/kotlin/com/sangdol/roomescape/payment/infrastructure/client/TosspayResponseDeserializer.kt

@@ -0,0 +1,32 @@
+package com.sangdol.roomescape.payment.infrastructure.client
+
+import com.fasterxml.jackson.core.JsonParser
+import com.fasterxml.jackson.databind.DeserializationContext
+import com.fasterxml.jackson.databind.JsonDeserializer
+import com.fasterxml.jackson.databind.JsonNode
+import com.sangdol.roomescape.payment.dto.CancelDetail
+import java.time.OffsetDateTime
+
+class CancelDetailDeserializer : JsonDeserializer<CancelDetail>() {
+    override fun deserialize(
+        p: JsonParser,
+        ctxt: DeserializationContext
+    ): CancelDetail? {
+        val node: JsonNode = p.codec.readTree(p) ?: return null
+
+        val targetNode = when {
+            node.isArray && !node.isEmpty -> node[0]
+            node.isObject -> node
+            else -> return null
+        }
+
+        return CancelDetail(
+            cancelAmount = targetNode.get("cancelAmount").asInt(),
+            cardDiscountAmount = targetNode.get("cardDiscountAmount").asInt(),
+            transferDiscountAmount = targetNode.get("transferDiscountAmount").asInt(),
+            easyPayDiscountAmount = targetNode.get("easyPayDiscountAmount").asInt(),
+            canceledAt = OffsetDateTime.parse(targetNode.get("canceledAt").asText()),
+            cancelReason = targetNode.get("cancelReason").asText()
+        )
+    }
+}

service/src/main/kotlin/com/sangdol/roomescape/payment/infrastructure/persistence/CanceledPaymentEntity.kt

@@ -3,8 +3,7 @@ package com.sangdol.roomescape.payment.infrastructure.persistence
 import com.sangdol.common.persistence.PersistableBaseEntity
 import jakarta.persistence.Entity
 import jakarta.persistence.Table
-import java.time.LocalDateTime
-import java.time.OffsetDateTime
+import java.time.Instant
 
 @Entity
 @Table(name = "canceled_payment")
@@ -12,8 +11,8 @@ class CanceledPaymentEntity(
     id: Long,
 
     val paymentId: Long,
-    val requestedAt: LocalDateTime,
-    val canceledAt: OffsetDateTime,
+    val requestedAt: Instant,
+    val canceledAt: Instant,
     val canceledBy: Long,
     val cancelReason: String,
     val cancelAmount: Int,

service/src/main/kotlin/com/sangdol/roomescape/payment/infrastructure/persistence/PaymentDetailEntity.kt

@@ -1,7 +1,11 @@
 package com.sangdol.roomescape.payment.infrastructure.persistence
 
 import com.sangdol.common.persistence.PersistableBaseEntity
-import com.sangdol.roomescape.payment.infrastructure.common.*
+import com.sangdol.roomescape.payment.business.domain.BankCode
+import com.sangdol.roomescape.payment.business.domain.CardIssuerCode
+import com.sangdol.roomescape.payment.business.domain.CardOwnerType
+import com.sangdol.roomescape.payment.business.domain.CardType
+import com.sangdol.roomescape.payment.business.domain.EasyPayCompanyCode
 import jakarta.persistence.*
 
 @Entity

service/src/main/kotlin/com/sangdol/roomescape/payment/infrastructure/persistence/PaymentEntity.kt

@@ -1,14 +1,14 @@
 package com.sangdol.roomescape.payment.infrastructure.persistence
 
 import com.sangdol.common.persistence.PersistableBaseEntity
-import com.sangdol.roomescape.payment.infrastructure.common.PaymentMethod
-import com.sangdol.roomescape.payment.infrastructure.common.PaymentStatus
-import com.sangdol.roomescape.payment.infrastructure.common.PaymentType
+import com.sangdol.roomescape.payment.business.domain.PaymentMethod
+import com.sangdol.roomescape.payment.business.domain.PaymentStatus
+import com.sangdol.roomescape.payment.business.domain.PaymentType
 import jakarta.persistence.Entity
 import jakarta.persistence.EnumType
 import jakarta.persistence.Enumerated
 import jakarta.persistence.Table
-import java.time.OffsetDateTime
+import java.time.Instant
 
 @Entity
 @Table(name = "payment")
@@ -19,8 +19,8 @@ class PaymentEntity(
     val paymentKey: String,
     val orderId: String,
     val totalAmount: Int,
-    val requestedAt: OffsetDateTime,
-    val approvedAt: OffsetDateTime,
+    val requestedAt: Instant,
+    val approvedAt: Instant,
 
     @Enumerated(EnumType.STRING)
     val type: PaymentType,

service/src/main/kotlin/com/sangdol/roomescape/payment/mapper/PaymentClientDTOMappingExtensions.kt

@@ -0,0 +1,113 @@
+package com.sangdol.roomescape.payment.mapper
+
+import com.sangdol.roomescape.payment.business.domain.*
+import com.sangdol.roomescape.payment.business.event.PaymentEvent
+import com.sangdol.roomescape.payment.dto.CancelDetail
+import com.sangdol.roomescape.payment.dto.PaymentGatewayResponse
+import com.sangdol.roomescape.payment.exception.PaymentErrorCode
+import com.sangdol.roomescape.payment.exception.PaymentException
+import com.sangdol.roomescape.payment.infrastructure.persistence.CanceledPaymentEntity
+import java.time.Instant
+
+fun CancelDetail.toEntity(
+    id: Long,
+    paymentId: Long,
+    canceledBy: Long,
+    cancelRequestedAt: Instant
+) = CanceledPaymentEntity(
+    id = id,
+    canceledAt = this.canceledAt.toInstant(),
+    requestedAt = cancelRequestedAt,
+    paymentId = paymentId,
+    canceledBy = canceledBy,
+    cancelReason = this.cancelReason,
+    cancelAmount = this.cancelAmount,
+    cardDiscountAmount = this.cardDiscountAmount,
+    transferDiscountAmount = this.transferDiscountAmount,
+    easypayDiscountAmount = this.easyPayDiscountAmount
+)
+
+fun PaymentGatewayResponse.toEvent(reservationId: Long): PaymentEvent {
+    return PaymentEvent(
+        reservationId = reservationId,
+        paymentKey = this.paymentKey,
+        orderId = this.orderId,
+        type = this.type,
+        status = this.status,
+        totalAmount = this.totalAmount,
+        vat = this.vat,
+        suppliedAmount = this.suppliedAmount,
+        method = this.method,
+        requestedAt = this.requestedAt.toInstant(),
+        approvedAt = this.approvedAt.toInstant(),
+        detail = this.toDetail()
+    )
+}
+
+fun PaymentGatewayResponse.toDetail(): PaymentDetail {
+    return when (this.method) {
+        PaymentMethod.TRANSFER -> this.toBankTransferDetail()
+        PaymentMethod.CARD -> this.toCardDetail()
+        PaymentMethod.EASY_PAY -> {
+            if (this.card != null) {
+                this.toEasypayCardDetail()
+            } else {
+                this.toEasypayPrepaidDetail()
+            }
+        }
+
+        else -> throw PaymentException(PaymentErrorCode.NOT_SUPPORTED_PAYMENT_TYPE)
+    }
+}
+
+private fun PaymentGatewayResponse.toBankTransferDetail(): BankTransferPaymentDetail {
+    val bankTransfer = this.transfer ?: throw PaymentException(PaymentErrorCode.PAYMENT_UNEXPECTED_ERROR)
+
+    return BankTransferPaymentDetail(
+        bankCode = bankTransfer.bankCode,
+        settlementStatus = bankTransfer.settlementStatus
+    )
+}
+
+private fun PaymentGatewayResponse.toCardDetail(): CardPaymentDetail {
+    val cardDetail = this.card ?: throw PaymentException(PaymentErrorCode.PAYMENT_UNEXPECTED_ERROR)
+
+    return CardPaymentDetail(
+        issuerCode = cardDetail.issuerCode,
+        number = cardDetail.number,
+        amount = cardDetail.amount,
+        cardType = cardDetail.cardType,
+        ownerType = cardDetail.ownerType,
+        isInterestFree = cardDetail.isInterestFree,
+        approveNo = cardDetail.approveNo,
+        installmentPlanMonths = cardDetail.installmentPlanMonths
+    )
+}
+
+private fun PaymentGatewayResponse.toEasypayCardDetail(): EasypayCardPaymentDetail {
+    val cardDetail = this.card ?: throw PaymentException(PaymentErrorCode.PAYMENT_UNEXPECTED_ERROR)
+    val easypay = this.easyPay ?: throw PaymentException(PaymentErrorCode.PAYMENT_UNEXPECTED_ERROR)
+
+    return EasypayCardPaymentDetail(
+        issuerCode = cardDetail.issuerCode,
+        number = cardDetail.number,
+        amount = cardDetail.amount,
+        cardType = cardDetail.cardType,
+        ownerType = cardDetail.ownerType,
+        isInterestFree = cardDetail.isInterestFree,
+        approveNo = cardDetail.approveNo,
+        installmentPlanMonths = cardDetail.installmentPlanMonths,
+        easypayProvider = easypay.provider,
+        easypayDiscountAmount = easypay.discountAmount
+    )
+}
+
+private fun PaymentGatewayResponse.toEasypayPrepaidDetail(): EasypayPrepaidPaymentDetail {
+    val easypay = this.easyPay ?: throw PaymentException(PaymentErrorCode.PAYMENT_UNEXPECTED_ERROR)
+
+    return EasypayPrepaidPaymentDetail(
+        provider = easypay.provider,
+        amount = easypay.amount,
+        discountAmount = easypay.discountAmount
+    )
+}

service/src/main/kotlin/com/sangdol/roomescape/payment/mapper/PaymentDetailMappingExtensions.kt

@@ -0,0 +1,91 @@
+package com.sangdol.roomescape.payment.mapper
+
+import com.sangdol.roomescape.payment.business.domain.BankTransferPaymentDetail
+import com.sangdol.roomescape.payment.business.domain.CardPaymentDetail
+import com.sangdol.roomescape.payment.business.domain.EasypayCardPaymentDetail
+import com.sangdol.roomescape.payment.business.domain.EasypayPrepaidPaymentDetail
+import com.sangdol.roomescape.payment.infrastructure.persistence.PaymentBankTransferDetailEntity
+import com.sangdol.roomescape.payment.infrastructure.persistence.PaymentCardDetailEntity
+import com.sangdol.roomescape.payment.infrastructure.persistence.PaymentDetailEntity
+import com.sangdol.roomescape.payment.infrastructure.persistence.PaymentEasypayPrepaidDetailEntity
+
+fun BankTransferPaymentDetail.toEntity(
+    id: Long,
+    paymentId: Long,
+    suppliedAmount: Int,
+    vat: Int
+): PaymentDetailEntity {
+    return PaymentBankTransferDetailEntity(
+        id = id,
+        paymentId = paymentId,
+        suppliedAmount = suppliedAmount,
+        vat = vat,
+        bankCode = this.bankCode,
+        settlementStatus = this.settlementStatus
+    )
+}
+
+fun CardPaymentDetail.toEntity(
+    id: Long,
+    paymentId: Long,
+    suppliedAmount: Int,
+    vat: Int
+): PaymentDetailEntity {
+    return PaymentCardDetailEntity(
+        id = id,
+        paymentId = paymentId,
+        suppliedAmount = suppliedAmount,
+        vat = vat,
+        issuerCode = issuerCode,
+        cardType = cardType,
+        ownerType = ownerType,
+        amount = amount,
+        cardNumber = this.number,
+        approvalNumber = this.approveNo,
+        installmentPlanMonths = installmentPlanMonths,
+        isInterestFree = isInterestFree,
+        easypayProviderCode = null,
+        easypayDiscountAmount = null
+    )
+}
+
+fun EasypayCardPaymentDetail.toEntity(
+    id: Long,
+    paymentId: Long,
+    suppliedAmount: Int,
+    vat: Int
+): PaymentDetailEntity {
+    return PaymentCardDetailEntity(
+        id = id,
+        paymentId = paymentId,
+        suppliedAmount = suppliedAmount,
+        vat = vat,
+        issuerCode = issuerCode,
+        cardType = cardType,
+        ownerType = ownerType,
+        amount = amount,
+        cardNumber = this.number,
+        approvalNumber = this.approveNo,
+        installmentPlanMonths = installmentPlanMonths,
+        isInterestFree = isInterestFree,
+        easypayProviderCode = this.easypayProvider,
+        easypayDiscountAmount = this.easypayDiscountAmount
+    )
+}
+
+fun EasypayPrepaidPaymentDetail.toEntity(
+    id: Long,
+    paymentId: Long,
+    suppliedAmount: Int,
+    vat: Int
+): PaymentDetailEntity {
+    return PaymentEasypayPrepaidDetailEntity(
+        id = id,
+        paymentId = paymentId,
+        suppliedAmount = suppliedAmount,
+        vat = vat,
+        easypayProviderCode = this.provider,
+        amount = this.amount,
+        discountAmount = this.discountAmount
+    )
+}

service/src/main/kotlin/com/sangdol/roomescape/payment/mapper/PaymentEventMappingExtensions.kt

@@ -0,0 +1,53 @@
+package com.sangdol.roomescape.payment.mapper
+
+import com.sangdol.roomescape.payment.business.domain.*
+import com.sangdol.roomescape.payment.business.event.PaymentEvent
+import com.sangdol.roomescape.payment.exception.PaymentErrorCode
+import com.sangdol.roomescape.payment.exception.PaymentException
+import com.sangdol.roomescape.payment.infrastructure.persistence.PaymentDetailEntity
+import com.sangdol.roomescape.payment.infrastructure.persistence.PaymentEntity
+
+fun PaymentEvent.toEntity(id: Long) = PaymentEntity(
+    id = id,
+    reservationId = this.reservationId,
+    paymentKey = this.paymentKey,
+    orderId = this.orderId,
+    totalAmount = this.totalAmount,
+    requestedAt = this.requestedAt,
+    approvedAt = this.approvedAt,
+    type = this.type,
+    method = this.method,
+    status = this.status
+)
+
+fun PaymentEvent.toDetailEntity(id: Long, paymentId: Long): PaymentDetailEntity {
+    val suppliedAmount = this.suppliedAmount
+    val vat = this.vat
+
+    return when (this.method) {
+        PaymentMethod.TRANSFER -> {
+            (this.detail as? BankTransferPaymentDetail)
+                ?.toEntity(id, paymentId, suppliedAmount, vat)
+                ?: throw PaymentException(PaymentErrorCode.PAYMENT_UNEXPECTED_ERROR)
+        }
+
+        PaymentMethod.EASY_PAY -> {
+            when (this.detail) {
+                is EasypayCardPaymentDetail -> { this.detail.toEntity(id, paymentId, suppliedAmount, vat) }
+                is EasypayPrepaidPaymentDetail -> { this.detail.toEntity(id, paymentId, suppliedAmount, vat) }
+
+                else -> {
+                    throw PaymentException(PaymentErrorCode.PAYMENT_UNEXPECTED_ERROR)
+                }
+            }
+        }
+
+        PaymentMethod.CARD -> {
+            (this.detail as? CardPaymentDetail)
+                ?.toEntity(id, paymentId, suppliedAmount, vat)
+                ?: throw PaymentException(PaymentErrorCode.PAYMENT_UNEXPECTED_ERROR)
+        }
+
+        else -> throw PaymentException(PaymentErrorCode.NOT_SUPPORTED_PAYMENT_TYPE)
+    }
+}

service/src/main/kotlin/com/sangdol/roomescape/payment/mapper/PaymentFindDTOMappingExtensions.kt

@@ -0,0 +1,70 @@
+package com.sangdol.roomescape.payment.mapper
+
+import com.sangdol.roomescape.payment.dto.PaymentCancelDetailResponse
+import com.sangdol.roomescape.payment.dto.PaymentDetailResponse
+import com.sangdol.roomescape.payment.dto.PaymentResponse
+import com.sangdol.roomescape.payment.exception.PaymentErrorCode
+import com.sangdol.roomescape.payment.exception.PaymentException
+import com.sangdol.roomescape.payment.infrastructure.persistence.*
+
+fun PaymentEntity.toResponse(
+    detail: PaymentDetailResponse?,
+    cancel: PaymentCancelDetailResponse?
+): PaymentResponse {
+    return PaymentResponse(
+        orderId = this.orderId,
+        totalAmount = this.totalAmount,
+        method = this.method.koreanName,
+        status = this.status,
+        requestedAt = this.requestedAt,
+        approvedAt = this.approvedAt,
+        detail = detail,
+        cancel = cancel
+    )
+}
+
+fun PaymentDetailEntity.toResponse(): PaymentDetailResponse {
+    return when (this) {
+        is PaymentCardDetailEntity -> this.toResponse()
+        is PaymentBankTransferDetailEntity -> this.toResponse()
+        is PaymentEasypayPrepaidDetailEntity -> this.toResponse()
+        else -> throw PaymentException(PaymentErrorCode.NOT_SUPPORTED_PAYMENT_TYPE)
+    }
+}
+
+fun PaymentCardDetailEntity.toResponse(): PaymentDetailResponse.CardDetailResponse {
+    return PaymentDetailResponse.CardDetailResponse(
+        issuerCode = this.issuerCode.koreanName,
+        cardType = this.cardType.koreanName,
+        ownerType = this.ownerType.koreanName,
+        cardNumber = this.cardNumber,
+        amount = this.amount,
+        approvalNumber = this.approvalNumber,
+        installmentPlanMonths = this.installmentPlanMonths,
+        easypayProviderName = this.easypayProviderCode?.koreanName,
+        easypayDiscountAmount = this.easypayDiscountAmount
+    )
+}
+
+fun PaymentBankTransferDetailEntity.toResponse(): PaymentDetailResponse.BankTransferDetailResponse {
+    return PaymentDetailResponse.BankTransferDetailResponse(
+        bankName = this.bankCode.koreanName
+    )
+}
+
+fun PaymentEasypayPrepaidDetailEntity.toResponse(): PaymentDetailResponse.EasyPayPrepaidDetailResponse {
+    return PaymentDetailResponse.EasyPayPrepaidDetailResponse(
+        providerName = this.easypayProviderCode.koreanName,
+        amount = this.amount,
+        discountAmount = this.discountAmount
+    )
+}
+
+fun CanceledPaymentEntity.toResponse(): PaymentCancelDetailResponse {
+    return PaymentCancelDetailResponse(
+        cancellationRequestedAt = this.requestedAt,
+        cancellationApprovedAt = this.canceledAt,
+        cancelReason = this.cancelReason,
+        canceledBy = this.canceledBy
+    )
+}

service/src/main/kotlin/com/sangdol/roomescape/payment/web/PaymentController.kt

@@ -5,26 +5,19 @@ import com.sangdol.roomescape.auth.web.support.User
 import com.sangdol.roomescape.common.types.CurrentUserContext
 import com.sangdol.roomescape.payment.business.PaymentService
 import com.sangdol.roomescape.payment.docs.PaymentAPI
+import com.sangdol.roomescape.payment.dto.PaymentCancelRequest
 import jakarta.validation.Valid
 import org.springframework.http.ResponseEntity
-import org.springframework.web.bind.annotation.*
+import org.springframework.web.bind.annotation.PostMapping
+import org.springframework.web.bind.annotation.RequestBody
+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.bind.annotation.RestController
 
 @RestController
 @RequestMapping("/payments")
 class PaymentController(
     private val paymentService: PaymentService
 ) : PaymentAPI {
-
-    @PostMapping
-    override fun confirmPayment(
-        @RequestParam(required = true) reservationId: Long,
-        @Valid @RequestBody request: PaymentConfirmRequest
-    ): ResponseEntity<CommonApiResponse<PaymentCreateResponse>> {
-        val response = paymentService.confirm(reservationId, request)
-
-        return ResponseEntity.ok(CommonApiResponse(response))
-    }
-
     @PostMapping("/cancel")
     override fun cancelPayment(
         @User user: CurrentUserContext,

service/src/main/kotlin/com/sangdol/roomescape/payment/web/PaymentDTO.kt

@@ -1,136 +0,0 @@
-package com.sangdol.roomescape.payment.web
-
-import com.sangdol.roomescape.payment.exception.PaymentErrorCode
-import com.sangdol.roomescape.payment.exception.PaymentException
-import com.sangdol.roomescape.payment.infrastructure.common.PaymentStatus
-import com.sangdol.roomescape.payment.infrastructure.common.PaymentType
-import com.sangdol.roomescape.payment.infrastructure.persistence.*
-import com.sangdol.roomescape.payment.web.PaymentDetailResponse.*
-import java.time.LocalDateTime
-import java.time.OffsetDateTime
-
-data class PaymentConfirmRequest(
-    val paymentKey: String,
-    val orderId: String,
-    val amount: Int,
-    val paymentType: PaymentType
-)
-
-data class PaymentCreateResponse(
-    val paymentId: Long,
-    val detailId: Long
-)
-
-data class PaymentCancelRequest(
-    val reservationId: Long,
-    val cancelReason: String,
-    val requestedAt: LocalDateTime = LocalDateTime.now()
-)
-
-data class PaymentWithDetailResponse(
-    val orderId: String,
-    val totalAmount: Int,
-    val method: String,
-    val status: PaymentStatus,
-    val requestedAt: OffsetDateTime,
-    val approvedAt: OffsetDateTime,
-    val detail: PaymentDetailResponse?,
-    val cancel: PaymentCancelDetailResponse?,
-)
-
-fun PaymentEntity.toDetailResponse(
-    detail: PaymentDetailResponse?,
-    cancel: PaymentCancelDetailResponse?
-): PaymentWithDetailResponse {
-    return PaymentWithDetailResponse(
-        orderId = this.orderId,
-        totalAmount = this.totalAmount,
-        method = this.method.koreanName,
-        status = this.status,
-        requestedAt = this.requestedAt,
-        approvedAt = this.approvedAt,
-        detail = detail,
-        cancel = cancel
-    )
-}
-
-sealed class PaymentDetailResponse {
-
-    data class CardDetailResponse(
-        val type: String = "CARD",
-        val issuerCode: String,
-        val cardType: String,
-        val ownerType: String,
-        val cardNumber: String,
-        val amount: Int,
-        val approvalNumber: String,
-        val installmentPlanMonths: Int,
-        val easypayProviderName: String?,
-        val easypayDiscountAmount: Int?,
-    ) : PaymentDetailResponse()
-
-    data class BankTransferDetailResponse(
-        val type: String = "BANK_TRANSFER",
-        val bankName: String,
-    ) : PaymentDetailResponse()
-
-    data class EasyPayPrepaidDetailResponse(
-        val type: String = "EASYPAY_PREPAID",
-        val providerName: String,
-        val amount: Int,
-        val discountAmount: Int,
-    ) : PaymentDetailResponse()
-}
-
-fun PaymentDetailEntity.toPaymentDetailResponse(): PaymentDetailResponse {
-    return when (this) {
-        is PaymentCardDetailEntity -> this.toCardDetailResponse()
-        is PaymentBankTransferDetailEntity -> this.toBankTransferDetailResponse()
-        is PaymentEasypayPrepaidDetailEntity -> this.toEasyPayPrepaidDetailResponse()
-        else -> throw PaymentException(PaymentErrorCode.NOT_SUPPORTED_PAYMENT_TYPE)
-    }
-}
-
-fun PaymentCardDetailEntity.toCardDetailResponse(): CardDetailResponse {
-    return CardDetailResponse(
-        issuerCode = this.issuerCode.koreanName,
-        cardType = this.cardType.koreanName,
-        ownerType = this.ownerType.koreanName,
-        cardNumber = this.cardNumber,
-        amount = this.amount,
-        approvalNumber = this.approvalNumber,
-        installmentPlanMonths = this.installmentPlanMonths,
-        easypayProviderName = this.easypayProviderCode?.koreanName,
-        easypayDiscountAmount = this.easypayDiscountAmount
-    )
-}
-
-fun PaymentBankTransferDetailEntity.toBankTransferDetailResponse(): BankTransferDetailResponse {
-    return BankTransferDetailResponse(
-        bankName = this.bankCode.koreanName
-    )
-}
-
-fun PaymentEasypayPrepaidDetailEntity.toEasyPayPrepaidDetailResponse(): EasyPayPrepaidDetailResponse {
-    return EasyPayPrepaidDetailResponse(
-        providerName = this.easypayProviderCode.koreanName,
-        amount = this.amount,
-        discountAmount = this.discountAmount
-    )
-}
-
-data class PaymentCancelDetailResponse(
-    val cancellationRequestedAt: LocalDateTime,
-    val cancellationApprovedAt: OffsetDateTime?,
-    val cancelReason: String,
-    val canceledBy: Long,
-)
-
-fun CanceledPaymentEntity.toCancelDetailResponse(): PaymentCancelDetailResponse {
-    return PaymentCancelDetailResponse(
-        cancellationRequestedAt = this.requestedAt,
-        cancellationApprovedAt = this.canceledAt,
-        cancelReason = this.cancelReason,
-        canceledBy = this.canceledBy
-    )
-}

service/src/main/kotlin/com/sangdol/roomescape/region/business/RegionService.kt

@@ -1,13 +1,13 @@
 package com.sangdol.roomescape.region.business
 
+import com.sangdol.roomescape.region.dto.*
+import com.sangdol.roomescape.region.exception.RegionErrorCode
+import com.sangdol.roomescape.region.exception.RegionException
+import com.sangdol.roomescape.region.infrastructure.persistence.RegionRepository
 import io.github.oshai.kotlinlogging.KLogger
 import io.github.oshai.kotlinlogging.KotlinLogging
 import org.springframework.stereotype.Service
 import org.springframework.transaction.annotation.Transactional
-import com.sangdol.roomescape.region.exception.RegionErrorCode
-import com.sangdol.roomescape.region.exception.RegionException
-import com.sangdol.roomescape.region.infrastructure.persistence.RegionRepository
-import com.sangdol.roomescape.region.web.*
 
 private val log: KLogger = KotlinLogging.logger {}
 
@@ -17,56 +17,56 @@ class RegionService(
 ) {
     @Transactional(readOnly = true)
     fun readAllSido(): SidoListResponse {
-        log.info { "[RegionService.readAllSido] 모든 시/도 조회 시작" }
+        log.debug { "[readAllSido] 모든 시/도 조회 시작" }
         val result: List<Pair<String, String>> = regionRepository.readAllSido()
 
         if (result.isEmpty()) {
-            log.warn { "[RegionService.readAllSido] 시/도 조회 실패" }
+            log.warn { "[readAllSido] 시/도 조회 실패" }
             throw RegionException(RegionErrorCode.SIDO_CODE_NOT_FOUND)
         }
 
         return SidoListResponse(result.map { SidoResponse(code = it.first, name = it.second) }).also {
-            log.info { "[RegionService.readAllSido] ${it.sidoList.size}개의 시/도 조회 완료" }
+            log.info { "[readAllSido] ${it.sidoList.size}개의 시/도 조회 완료" }
         }
     }
 
     @Transactional(readOnly = true)
     fun findSigunguBySido(sidoCode: String): SigunguListResponse {
-        log.info { "[RegionService.findSigunguBySido] 시/군/구 조회 시작: sidoCode=${sidoCode}" }
+        log.debug { "[findSigunguBySido] 시/군/구 조회 시작: sidoCode=${sidoCode}" }
         val result: List<Pair<String, String>> = regionRepository.findAllSigunguBySido(sidoCode)
 
         if (result.isEmpty()) {
-            log.warn { "[RegionService.findSigunguBySido] 시/군/구 조회 실패: sidoCode=${sidoCode}" }
+            log.warn { "[findSigunguBySido] 시/군/구 조회 실패: sidoCode=${sidoCode}" }
             throw RegionException(RegionErrorCode.SIGUNGU_CODE_NOT_FOUND)
         }
 
         return SigunguListResponse(result.map { SigunguResponse(code = it.first, name = it.second) }).also {
-            log.info { "[RegionService.findSigunguBySido] sidoCode=${sidoCode}인 ${it.sigunguList.size}개의 시/군/구 조회 완료" }
+            log.info { "[findSigunguBySido] sidoCode=${sidoCode}인 ${it.sigunguList.size}개의 시/군/구 조회 완료" }
         }
     }
 
     @Transactional(readOnly = true)
     fun findRegionCode(sidoCode: String, sigunguCode: String): RegionCodeResponse {
-        log.info { "[RegionService.findRegionCode] 지역 코드 조회 시작: sidoCode=${sidoCode} / sigunguCode=${sigunguCode}" }
+        log.debug { "[findRegionCode] 지역 코드 조회 시작: sidoCode=${sidoCode} / sigunguCode=${sigunguCode}" }
 
         return regionRepository.findRegionCode(sidoCode, sigunguCode)?.let {
-            log.info { "[RegionService.findRegionCode] 지역 코드 조회 완료: code=${it} sidoCode=${sidoCode} / sigunguCode=${sigunguCode}" }
+            log.info { "[findRegionCode] 지역 코드 조회 완료: code=${it} sidoCode=${sidoCode} / sigunguCode=${sigunguCode}" }
             RegionCodeResponse(it)
         } ?: run {
-            log.warn { "[RegionService.findRegionCode] 지역 코드 조회 실패: sidoCode=${sidoCode} / sigunguCode=${sigunguCode}" }
+            log.warn { "[findRegionCode] 지역 코드 조회 실패: sidoCode=${sidoCode} / sigunguCode=${sigunguCode}" }
             throw RegionException(RegionErrorCode.REGION_CODE_NOT_FOUND)
         }
     }
 
     @Transactional(readOnly = true)
     fun findRegionInfo(regionCode: String): RegionInfoResponse {
-        log.info { "[RegionService.findRegionInfo] 지역 정보 조회 시작: regionCode=${regionCode}" }
+        log.debug { "[findRegionInfo] 지역 정보 조회 시작: regionCode=${regionCode}" }
 
         return regionRepository.findByCode(regionCode)?.let {
-            log.info { "[RegionService.findRegionInfo] 지역 정보 조회 완료: code=${it} regionCode=${regionCode}" }
+            log.info { "[findRegionInfo] 지역 정보 조회 완료: code=${it} regionCode=${regionCode}" }
             RegionInfoResponse(it.code, it.sidoName, it.sigunguName)
         } ?: run {
-            log.warn { "[RegionService.findRegionInfo] 지역 정보 조회 실패: regionCode=${regionCode}" }
+            log.warn { "[findRegionInfo] 지역 정보 조회 실패: regionCode=${regionCode}" }
             throw RegionException(RegionErrorCode.REGION_CODE_NOT_FOUND)
         }
     }

service/src/main/kotlin/com/sangdol/roomescape/region/docs/RegionAPI.kt

@@ -2,9 +2,9 @@ package com.sangdol.roomescape.region.docs
 
 import com.sangdol.common.types.web.CommonApiResponse
 import com.sangdol.roomescape.auth.web.support.Public
-import com.sangdol.roomescape.region.web.RegionCodeResponse
-import com.sangdol.roomescape.region.web.SidoListResponse
-import com.sangdol.roomescape.region.web.SigunguListResponse
+import com.sangdol.roomescape.region.dto.RegionCodeResponse
+import com.sangdol.roomescape.region.dto.SidoListResponse
+import com.sangdol.roomescape.region.dto.SigunguListResponse
 import io.swagger.v3.oas.annotations.Operation
 import io.swagger.v3.oas.annotations.responses.ApiResponse
 import io.swagger.v3.oas.annotations.responses.ApiResponses

service/src/main/kotlin/com/sangdol/roomescape/region/dto/RegionDTO.kt

@@ -1,4 +1,4 @@
-package com.sangdol.roomescape.region.web
+package com.sangdol.roomescape.region.dto
 
 data class SidoResponse(
     val code: String,

service/src/main/kotlin/com/sangdol/roomescape/region/exception/RegionException.kt

@@ -1,8 +1,8 @@
 package com.sangdol.roomescape.region.exception
 
-import com.sangdol.common.types.web.HttpStatus
 import com.sangdol.common.types.exception.ErrorCode
 import com.sangdol.common.types.exception.RoomescapeException
+import com.sangdol.common.types.web.HttpStatus
 
 class RegionException(
     override val errorCode: RegionErrorCode,

service/src/main/kotlin/com/sangdol/roomescape/region/web/RegionController.kt

@@ -3,6 +3,9 @@ package com.sangdol.roomescape.region.web
 import com.sangdol.common.types.web.CommonApiResponse
 import com.sangdol.roomescape.region.business.RegionService
 import com.sangdol.roomescape.region.docs.RegionAPI
+import com.sangdol.roomescape.region.dto.RegionCodeResponse
+import com.sangdol.roomescape.region.dto.SidoListResponse
+import com.sangdol.roomescape.region.dto.SigunguListResponse
 import org.springframework.http.ResponseEntity
 import org.springframework.web.bind.annotation.GetMapping
 import org.springframework.web.bind.annotation.RequestMapping