The task is submitted successfully.
Resource creation succeeds.
400 Bad Request
Incorrect request parameters.
No permission to access the requested resource.
404 Not Found
The requested resource does not exist.
500 Internal Server Error
The request fails because the server is abnormal.
501 Not Implemented
The request fails because the server does not support the requested function.
502 Bad Gateway
The request fails because the returned response is invalid.
503 Service Unavailable
The request fails because the system is abnormal.
504 Gateway Timeout
Gateway times out.