feat: 임의의 결제 정보를 반환하는 API 추가

tosspay-mock/src/main/kotlin/com/sangdol/tosspaymock/web/TosspayController.kt

@@ -0,0 +1,35 @@
+package com.sangdol.tosspaymock.web
+
+import com.sangdol.tosspaymock.business.TosspayService
+import com.sangdol.tosspaymock.web.dto.PaymentCancelRequest
+import com.sangdol.tosspaymock.web.dto.PaymentConfirmRequest
+import com.sangdol.tosspaymock.web.dto.PaymentResponse
+import org.springframework.http.ResponseEntity
+import org.springframework.web.bind.annotation.*
+
+@RestController
+@RequestMapping("/v1/payments")
+class TosspayController(
+    private val tosspayService: TosspayService
+) {
+
+    @PostMapping("/confirm")
+    fun confirmPayment(
+        @RequestBody request: PaymentConfirmRequest
+    ): ResponseEntity<PaymentResponse> {
+        val response = tosspayService.confirm(request)
+
+
+        return ResponseEntity.ok(response)
+    }
+
+    @PostMapping("/{paymentKey}/cancel")
+    fun cancelPayment(
+        @PathVariable("paymentKey") paymentKey: String,
+        @RequestBody request: PaymentCancelRequest
+    ): ResponseEntity<PaymentResponse> {
+        val response = tosspayService.cancel(paymentKey, request)
+
+        return ResponseEntity.ok(response)
+    }
+}