HTTP Status Code	Usage
200	OK - The request was successful and the response contains data
201	Created - A new resource was successfully created
204	No Content - The request was successful, but there is no data
304	Not Modified - The requested resource has not been modified
400	Bad Request - The request is malformed or has invalid data
401	Unauthorized - Authentication is required for the request
403	Forbidden - The server understood the request, but refused it
404	Not Found - The requested resource does not exist
405	Method Not Allowed - The requested method is not allowed
500	Internal Server Error - An unexpected error occurred
503	Service Unavailable - The server is currently unavailable

HTTP Response Status Codes