Method Not Allowed

The 405 Method Not Allowed HTTP status code is issued by a server when the request method is known by the server but has been disabled and cannot be used for the requested resource. Unlike the 404 Not Found status, which indicates that the requested resource could not be found, a 405 error suggests that the resource is available but does not support the method used in the request. For example, a server might allow a resource to be accessed with a GET request but will return a 405 error if the client attempts to use a POST method instead. This status code serves as a crucial feedback mechanism for developers by specifying that the HTTP method must be changed to perform the desired action correctly. It also mandates that the response from the server must include an Allow header to inform the client of the allowed methods for the requested resource, helping to guide the correct formulation of future requests.