FeignConfig errorDecoder 추가 및 로깅 코드 추가

boot/api/src/main/java/com/clip/api/payment/feign/dto/PaymentObject.java

@@ -2,12 +2,14 @@
 
 import lombok.Builder;
 import lombok.Data;
+import lombok.ToString;
 
 import java.time.OffsetDateTime;
 import java.util.UUID;
 
 @Builder
 @Data
+@ToString
 public class PaymentObject {
     private String mId;
     private String lastTransactionKey;

boot/api/src/main/java/com/clip/api/payment/service/PaymentServiceFacade.java

@@ -7,8 +7,10 @@
 import com.clip.order.entity.OneThingOrder;
 import com.clip.order.entity.RandomOrder;
 import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
 
+@Slf4j
 @Service
 @RequiredArgsConstructor
 public class PaymentServiceFacade {
@@ -27,6 +29,7 @@ public void confirm(long userId, PaymentDto paymentDto) {
                         .amount(randomOrder.getDiscountedPrice())
                         .build()
                 );
+                log.info("paymentObject info: {}", paymentObject.toString());
                 userPaymentService.updateRandomOrderStatus(userId, paymentObject);
             }
             case ONETHING -> {
@@ -37,6 +40,7 @@ public void confirm(long userId, PaymentDto paymentDto) {
                         .amount(oneThingOrder.getDiscountedPrice())
                         .build()
                 );
+                log.info("paymentObject info: {}", paymentObject.toString());
                 userPaymentService.updateOneThingOrderStatus(userId, paymentObject);
             }
         }

boot/api/src/main/java/com/clip/global/config/feign/FeignConfig.java

@@ -1,13 +1,17 @@
 package com.clip.global.config.feign;
 
 import feign.RequestInterceptor;
+import feign.codec.ErrorDecoder;
+import lombok.extern.slf4j.Slf4j;
 import org.bouncycastle.util.encoders.Base64;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
 import java.nio.charset.StandardCharsets;
+import java.util.Objects;
 
+@Slf4j
 @Configuration
 public class FeignConfig {
 
@@ -19,6 +23,15 @@ public RequestInterceptor authorizationHeader() {
         return requestTemplate -> requestTemplate.header("Authorization", getEncodedSecretKey());
     }
 
+    @Bean
+    public ErrorDecoder errorDecoder() {
+        return (methodKey, response) -> {
+            String errorMessage = Objects.isNull(response.body()) ? "No response body" : response.body().toString();
+            log.error("Feign client error: Method Key - {}, Status Code - {}, Response Body - {}", methodKey, response.status(), errorMessage);
+            return new ErrorDecoder.Default().decode(methodKey, response);
+        };
+    }
+
     private String getEncodedSecretKey() {
         String key = tossSecretKey + ":";
         return "Basic " + new String(Base64.encode(key.getBytes(StandardCharsets.UTF_8)));