Appendix A. HTTP Response Status Codes

The following table lists the HTTP response status codes for the GET (retrieve), POST (create), PUT (modify), and DELETE operations of the Yahoo! Social APIs.

Response Code HTTP Operation Response Body Contents Description
200 GET, PUT, DELETE Resource No error, operation successful.
201 Created POST Resource that was created Successful creation of a resource.
202 Accepted POST, PUT, DELETE N/A The request was received.
204 No Content GET, PUT, DELETE N/A The request was processed successfully, but no response body is needed.
301 Moved Permanently GET XHTML with link Resource has moved.
303 See Other GET XHTML with link Redirection.
304 Not Modified conditional GET N/A Resource has not been modified.
400 Bad Request GET, POST, PUT, DELETE Error Message Malformed syntax or a bad query.
401 Unauthorized GET, POST, PUT, DELETE Error Message Action requires user authentication.
403 Forbidden GET, POST, PUT, DELETE Error Message Authentication failure or invalid Application ID.
404 Not Found GET, POST, PUT, DELETE Error Message Resource not found.
405 Not Allowed GET, POST, PUT, DELETE Error Message Method not allowed on resource.
406 Not Acceptable GET Error Message Requested representation not available for the resource.
408 Request Timeout GET, POST Error Message Request has timed out.
409 Resource Conflict PUT, PUT, DELETE Error Message State of the resource doesn't permit request.
410 Gone GET, PUT Error Message The URI used to refer to a resource.
411 Length Required POST, PUT Error Message The server needs to know the size of the entity body and it should be specified in the Content Length header.
412 Precondition failed GET Error Message Operation not completed because preconditions were not met.
413 Request Entity Too Large POST, PUT Error Message The representation was too large for the server to handle.
414 Request URI too long POST, PUT Error Message The URI has more than 2k characters.
415 Unsupported Type POST, PUT Error Message Representation not supported for the resource.
416 Requested Range Not Satisfiable GET Error Message Requested range not satisfiable.
500 Server Error GET, POST, PUT Error Message Internal server error.
501 Not Implemented POST, PUT, DELETE Error Message Requested HTTP operation not supported.
502 Bad Gateway GET, POST, PUT, DELETE Error Message Backend service failure (data store failure).
505 GET Error Message HTTP version not supported.

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