4×× Client Error

400 Bad Request

The server cannot or will not process the request due to something that is perceived to be a client error (e.g., malformed request syntax, invalid request message framing, or deceptive request routing).



400 Code References

  • .NET HTTP Status Enum HttpStatusCode.BadRequest
  • Rust HTTP Status Constant http::StatusCode::BAD_REQUEST
  • Rails HTTP Status Symbol :bad_request
  • Go HTTP Status Constant http.StatusBadRequest
  • Symfony HTTP Status Constant Response::HTTP_BAD_REQUEST
  • Python2 HTTP Status Constant httplib.BAD_REQUEST
  • Python3+ HTTP Status Constant http.client.BAD_REQUEST
  • Python3.5+ HTTP Status Constant http.HTTPStatus.BAD_REQUEST
HTTP Status Codes