The server, while acting as a gateway or proxy, did not receive a timely response from an upstream server it needed to access in order to complete the request.
Server Error
504 Gateway Timeout
Source: RFC7231 Section 6.6.5
References for code 504
- Rails HTTP Status Symbol
:gateway_timeout - Go HTTP Status Constant
http.StatusGatewayTimeout - Symfony HTTP Status Constant
Response::HTTP_GATEWAY_TIMEOUT - Python 2 HTTP Status Constant
httplib.GATEWAY_TIMEOUT - Python 3+ HTTP Status Constant
http.client.GATEWAY_TIMEOUT - Python 3.5+ HTTP Status Constant
http.HTTPStatus.GATEWAY_TIMEOUT