Merge pull request #101 from gague-jinsim-in-jadeul/feat/100_add_paym…

…ent_function

✨ Add payment check api

src/main/java/org/gagu/gagubackend/GaguBackendApplication.java

@@ -8,10 +8,7 @@
 import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
 import org.springframework.web.servlet.config.annotation.CorsRegistry;
 import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
-@OpenAPIDefinition(
-        servers = {
-                @Server(url = "/", description = "Default Server url")
-        }
+@OpenAPIDefinition(servers = {@Server(url = "https://gagu.me", description = "Default Server url")}
 )
 @SpringBootApplication
 @EnableJpaAuditing

src/main/java/org/gagu/gagubackend/estimate/controller/EstimateController.java

@@ -101,6 +101,8 @@ public ResponseEntity<?> getRequestFurnitures(HttpServletRequest request, @Reque
 
         return ResponseEntity.ok(estimateService.getRequestFurnitures(pageable, nickname, requester));
     }
+    @Operation(summary = "결제 내역 조회", description = "사용자 결제 이후 결재 내역을 PG 사를 통해 확인합니다.")
+
 
     /**
      * RequestSaveFurnitureDto null 확인 메서드

src/main/java/org/gagu/gagubackend/global/config/OpenApiConfig.java

@@ -1,6 +1,5 @@
 package org.gagu.gagubackend.global.config;
 
-import io.swagger.v3.oas.annotations.servers.Server;
 import io.swagger.v3.oas.models.Components;
 import io.swagger.v3.oas.models.OpenAPI;
 import io.swagger.v3.oas.models.info.Info;
@@ -9,15 +8,24 @@
 import io.swagger.v3.oas.models.security.SecurityScheme;
 
 
+import io.swagger.v3.oas.models.servers.Server;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
+import java.util.List;
+
 @Configuration
 public class OpenApiConfig {
     private static final String BEARER_TOKEN_PREFIX = "Bearer";
 
     @Bean
     public OpenAPI openAPI() {
+        Info info = new Info()
+                .version("V1.0.0")
+                .title("GAGU API DOCS")
+                .description("맞춤형 가구 제작 의뢰 앱 GAGU의 API 문서 입니다.");
+
         String securityJwtName = "JWT";
         SecurityRequirement securityRequirement = new SecurityRequirement().addList(securityJwtName);
         Components components = new Components()
@@ -28,6 +36,7 @@ public OpenAPI openAPI() {
                         .bearerFormat(securityJwtName));
 
         return new OpenAPI()
+                .info(info)
                 .addSecurityItem(securityRequirement)
                 .components(components);
     }

src/main/java/org/gagu/gagubackend/payment/controller/PaymentController.java

@@ -0,0 +1,27 @@
+package org.gagu.gagubackend.payment.controller;
+
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.gagu.gagubackend.payment.service.PaymentService;
+import org.springframework.http.ResponseEntity;
+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;
+
+@Tag(name = "Payment", description = "결제 관련 API 입니다.")
+@RestController
+@RequestMapping("/payment")
+@RequiredArgsConstructor
+@Slf4j
+public class PaymentController {
+    private final PaymentService paymentService;
+    @Operation(summary = "사용자 결제 후 결제 완료 처리", description = "PG 사에 결제 완료 여부를 확인합니다.")
+    @PostMapping("/complete")
+    public ResponseEntity<?> checkPayment(@RequestBody String paymentId){
+        return paymentService.checkByPaymentId(paymentId);
+    }
+
+}

src/main/java/org/gagu/gagubackend/payment/enums/PaymentResultCode.java

@@ -0,0 +1,21 @@
+package org.gagu.gagubackend.payment.enums;
+
+import lombok.Getter;
+import org.springframework.http.ResponseEntity;
+
+@Getter
+public enum PaymentResultCode {
+    OK(200, "거래 내역이 정상 확인됐습니다."),
+    NOT_FOUND(400,"거래 내역을 확인 할 수 없습니다.");
+
+    private final int code;
+    private final String msg;
+    PaymentResultCode(int code, String msg){
+        this.code = code;
+        this.msg = msg;
+    }
+    public ResponseEntity<String> toResponseEntity(){
+        return ResponseEntity.status(this.code).body(this.msg);
+    }
+
+}

src/main/java/org/gagu/gagubackend/payment/service/Impl/PaymentServiceImpl.java

@@ -0,0 +1,51 @@
+package org.gagu.gagubackend.payment.service.Impl;
+
+import lombok.extern.slf4j.Slf4j;
+import org.gagu.gagubackend.global.domain.enums.ResultCode;
+import org.gagu.gagubackend.payment.enums.PaymentResultCode;
+import org.gagu.gagubackend.payment.service.PaymentService;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.HttpEntity;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Service;
+import org.springframework.web.client.RestTemplate;
+
+@Service
+@Slf4j
+public class PaymentServiceImpl implements PaymentService {
+    @Value("${portone.api.key}")
+    private String PORTONE_API_KEY;
+    @Value("${portone.api.url}")
+    private String PORTONE_API_URL;
+    @Override
+    public ResponseEntity<?> checkByPaymentId(String paymentId) {
+        RestTemplate restTemplate = new RestTemplate();
+        HttpHeaders headers = new HttpHeaders();
+        StringBuilder urlBuilder = new StringBuilder();
+
+        headers.add("Authorization", "PortOne "+PORTONE_API_KEY);
+        urlBuilder.append(PORTONE_API_URL).append(paymentId);
+        log.info("[checkByPaymentId] api 호출 : {}", urlBuilder.toString());
+        HttpEntity<String> entity = new HttpEntity<>(headers);
+        try{
+            ResponseEntity<String> response = restTemplate.exchange(
+                    urlBuilder.toString(),
+                    HttpMethod.GET,
+                    entity,
+                    String.class);
+
+            if(response.getStatusCode().is4xxClientError()){
+                log.error("[checkByPaymentId] 거래 내역 확인 불가");
+                return PaymentResultCode.NOT_FOUND.toResponseEntity();
+            }else if(response.getStatusCode().is2xxSuccessful()){
+                return ResultCode.OK.toResponseEntity();
+            }
+        }catch (Exception e){
+            log.error("[checkByPaymentId] error is occured during check payment");
+            e.printStackTrace();
+        }
+        return PaymentResultCode.NOT_FOUND.toResponseEntity();
+    }
+}

src/main/java/org/gagu/gagubackend/payment/service/PaymentService.java

@@ -0,0 +1,12 @@
+package org.gagu.gagubackend.payment.service;
+
+import org.springframework.http.ResponseEntity;
+
+public interface PaymentService {
+    /**
+     * @Author HandMK
+     * @param paymentId
+     * @return API response
+     */
+    ResponseEntity<?> checkByPaymentId(String paymentId);
+}