HTTP_200_OK = 200
HTTP_204_NO_CONTENT= 204
HTTP_204_NO_CONTENT = 204
HTTP_400_BAD_REQUEST = 400
HTTP_404_NOT_FOUND = 404
HTTP_500_INTERNAL_SERVER_ERROR = 500
HTTP_401_UNAUTHORIZED = 401 # Unauthorized
HTTP_503_SERVICE_UNAVAILABLE= 503 # Service Unavailable