Argument passed to the REST API callback when a request completes (successfully or unsuccessfully).
This class has been removed since 4.0.0
NOTE This is an abstract type. Any object meeting this description can be used where this type is used.
Error code. Returns 0 if success is true.
Error code will be 0 if success is true, nonzero otherwise. If the error
was generated by the operating system, that system's error value is used.
Otherwise, this value will be -1.
Error message, if any returned.
Error message, if any returned.
Will be undefined if success is true.
If successful, returns the JSON response returned by Facebook. If the request is not successfully completed, the result is undefined.
Indicates if the operation succeeded.
Indicates if the operation succeeded.
Returns true if request succeeded, false otherwise.