SIP
504 Server Time-out 응답 모의 테스트
The server did not receive a timely response from an external server it accessed while attempting to process the request. Different from 408 (client timeout).
전체 레퍼런스 보기 →1 HTTP 응답
HTTP/1.1 504 Server Time-out
Content-Type: application/json
Date: Tue, 25 Feb 2026 12:00:00 GMT
Content-Length: 68
{
"error": "gateway_timeout",
"message": "Upstream server timed out"
}
2 curl로 테스트하기
curl -i https://httpbin.org/status/504
3 프레임워크에서 504 Server Time-out 반환하기
django
from django.http import JsonResponse
def my_view(request):
return JsonResponse(
{"error": "gateway_timeout", "message": "Upstream server timed out"},
status=504,
)
flask
from flask import Flask, jsonify
app = Flask(__name__)
@app.route("/endpoint")
def my_endpoint():
return jsonify({"error": "gateway_timeout", "message": "Upstream server timed out"}), 504
fastapi
from fastapi import FastAPI
from fastapi.responses import JSONResponse
app = FastAPI()
@app.get("/endpoint")
def my_endpoint():
return JSONResponse(
content={"error": "gateway_timeout", "message": "Upstream server timed out"},
status_code=504,
)
express.js
// Express.js
app.get('/endpoint', (req, res) => {
res.status(504).json({"error": "gateway_timeout", "message": "Upstream server timed out"});
});
spring boot
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import java.util.Map;
@RestController
public class MyController {
@GetMapping("/endpoint")
public ResponseEntity<Map<String, Object>> myEndpoint() {
return ResponseEntity
.status(504)
.body(Map.of("error", "server_time-out",
"message", "Server Time-out"));
}
}
go net/http
package main
import (
"encoding/json"
"net/http"
)
func myHandler(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(504)
json.NewEncoder(w).Encode(map[string]string{
"error": "server_time-out",
"message": "Server Time-out",
})
}
ruby on rails
class MyController < ApplicationController
def my_action
render json: {"error": "gateway_timeout", "message": "Upstream server timed out"},
status: :server_time-out
end
end
asp.net core
// ASP.NET Core Minimal API
app.MapGet("/endpoint", () =>
Results.Json(
new { error = "server_time-out", message = "Server Time-out" },
statusCode: 504
)
);