Portfolio


ext {
	springCloudVersion = "2021.0.5"
}

dependencyManagement {
	imports {
		mavenBom "org.springframework.cloud:spring-cloud-dependencies:${springCloudVersion}"
	}
}

dependencies {
	implementation 'org.springframework.cloud:spring-cloud-starter-openfeign'
}

springCloudVersion 은 SpringBoot와 버전 맞아야 함


@FeignClient(value = "${feign.name}", url = "${feign.url}")
public interface GameServerApiClient {

	@PostMapping("/rooms")
	RoomCreateResponse createRoom(URI baseUrl, @RequestBody RoomCreateRequest request);

	@GetMapping("/api")
	String apiCall();

	@PostMapping("/create")
	EC2ClientResponse createEC2Instance(@RequestHeader("x-api-key") String apiKey,
																			@RequestBody EC2ClientRequest request);
	// 위와 같은 방식으로 RequestHeader 추가 가능

}

public class GameServerService {

	private final GameServerApiClient client;

	public boolean createRoom(URI baseUrl, String roomName, Integer accountUID) {
		try {
			RoomCreateResponse room = client.createRoom(baseUrl, new RoomCreateRequest(roomName, accountUID));
			return String.valueOf(room.code()).startsWith("2");
		} catch (RetryableException exception) {
			log.warn("GameServer API Call Failed : {}", exception.getMessage());
			return false;
		}
	}
}


@Configuration
public class FooConfiguration {
    @Bean
    Logger.Level feignLoggerLevel() {
        return Logger.Level.FULL;
    }
}


# application.yaml 
# 클래스 fullpath: DEBUG
logging.level.project.user.UserClient: DEBUG


 static class MyErrorDecoder implements ErrorDecoder {

        private final ErrorDecoder defaultErrorDecoder = new Default();

        @Override
        public Exception decode(String methodKey, Response response) {
            // wrapper 401 to RetryableException in order to retry
            if (response.status() == 401) {
                return new RetryableException(response.status(), response.reason(), response.request().httpMethod(), null, response.request());
            }
            return defaultErrorDecoder.decode(methodKey, response);
        }
    }

Spring Cloud OpenFeign

의존성 추가

사용방법

Logging 활성화

MultiThread에서 사용하기

에러 처리하기