HTTP 507 Insufficient Storage is a WebDAV extension (RFC 4918) indicating the server cannot store the representation needed to complete the request. Unlike a disk-full condition (which might be a 500), 507 specifically means the storage quota or allocation for this operation has been exhausted. In modern cloud applications, this could indicate: user storage quota exceeded, database tablespace full, or blob storage limit reached.
Response includes the status code, standard headers (including Content-Type), and a small diagnostic JSON body describing the request and returned status.
Simulator URL (copy in the app after load — not a normal link):
https://httpstatus.com/api/status/507
Example request:
curl -i "https://httpstatus.com/api/status/507"The method could not be performed on the resource because the server is unable to store the representation needed to successfully complete the request.
On this code, Inspector focuses on semantics, headers, and correctness warnings that commonly affect clients and caches.
HTTP 507 Insufficient Storage represents a specific server-side condition that requires different handling than other 5xx errors. Understanding the precise cause helps operations teams diagnose and resolve issues faster. Monitoring systems should distinguish 507 from other 5xx codes for accurate alerting and diagnosis.
// Handle 507 Insufficient Storage
process.on('unhandledRejection', (reason) => {
console.error('Unhandled rejection:', reason);
});
app.use((err, req, res, next) => {
console.error(`${req.method} ${req.url}:`, err.stack);
res.status(err.status || 500).json({
error: process.env.NODE_ENV === 'production'
? 'Internal Server Error'
: err.message,
requestId: req.id
});
});from fastapi import FastAPI, Request
from fastapi.responses import JSONResponse
import logging
logger = logging.getLogger(__name__)
@app.exception_handler(Exception)
async def server_error_handler(request: Request, exc: Exception):
logger.error(f'{request.method} {request.url}: {exc}',
exc_info=True)
return JSONResponse(
status_code=507,
content={'error': 'Insufficient Storage', 'request_id': request.state.id}
)@ControllerAdvice
public class GlobalErrorHandler {
private static final Logger log = LoggerFactory.getLogger(
GlobalErrorHandler.class);
@ExceptionHandler(Exception.class)
public ResponseEntity<ErrorResponse> handleException(
Exception ex, HttpServletRequest req) {
log.error("{} {}: {}", req.getMethod(),
req.getRequestURI(), ex.getMessage(), ex);
return ResponseEntity.status(507)
.body(new ErrorResponse("Insufficient Storage",
"An unexpected error occurred"));
}
}func errorMiddleware(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
defer func() {
if err := recover(); err != nil {
log.Printf("%s %s: %v\n%s",
r.Method, r.URL, err, debug.Stack())
w.WriteHeader(507)
json.NewEncoder(w).Encode(map[string]string{
"error": "Insufficient Storage",
})
}
}()
next.ServeHTTP(w, r)
})
}