FTP
Simular respuesta 500 Syntax Error
Syntax error, command unrecognized. The server could not parse the command. This may also be sent when the command line is too long.
Ver referencia completa →1 Respuesta HTTP
HTTP/1.1 500 Syntax Error
Content-Type: application/json
Date: Tue, 25 Feb 2026 12:00:00 GMT
Content-Length: 70
{
"error": "internal_error",
"message": "An unexpected error occurred"
}
2 Probar con curl
curl -i https://httpbin.org/status/500
3 Devolver 500 Syntax Error en tu framework
django
from django.http import JsonResponse
def my_view(request):
return JsonResponse(
{"error": "internal_error", "message": "An unexpected error occurred"},
status=500,
)
flask
from flask import Flask, jsonify
app = Flask(__name__)
@app.route("/endpoint")
def my_endpoint():
return jsonify({"error": "internal_error", "message": "An unexpected error occurred"}), 500
fastapi
from fastapi import FastAPI
from fastapi.responses import JSONResponse
app = FastAPI()
@app.get("/endpoint")
def my_endpoint():
return JSONResponse(
content={"error": "internal_error", "message": "An unexpected error occurred"},
status_code=500,
)
express.js
// Express.js
app.get('/endpoint', (req, res) => {
res.status(500).json({"error": "internal_error", "message": "An unexpected error occurred"});
});
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(500)
.body(Map.of("error", "syntax_error",
"message", "Syntax Error"));
}
}
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(500)
json.NewEncoder(w).Encode(map[string]string{
"error": "syntax_error",
"message": "Syntax Error",
})
}
ruby on rails
class MyController < ApplicationController
def my_action
render json: {"error": "internal_error", "message": "An unexpected error occurred"},
status: :syntax_error
end
end
asp.net core
// ASP.NET Core Minimal API
app.MapGet("/endpoint", () =>
Results.Json(
new { error = "syntax_error", message = "Syntax Error" },
statusCode: 500
)
);