405 Method Not Allowed

What is HTTP 405 Method Not Allowed?

405 Method Not Allowed

Error! The HTTP method used is not allowed for this resource.

1. Explain Like I’m 3

   ELI3

   Like trying to push a door that says “pull only”!

    

2. Explain Like I’m 5

   ELI5

   Imagine there’s a special door at school that can only be pulled open, but you try to push it. That’s what 405 means - you’re trying to do something (like DELETE or POST) that this particular webpage doesn’t allow.

    

3. Jr. Developer

   Here me out…

   The 405 Method Not Allowed response means “Hey, you can’t use that HTTP method here!” Maybe you tried to POST to an endpoint that only accepts GET, or DELETE something that can’t be deleted. Always include an Allow header listing the valid methods!

    

4. Crash Course

   Write this down…

   The 405 Method Not Allowed status code indicates that the method received in the request-line is known by the origin server but not supported by the target resource. The response MUST include an Allow header field containing a list of valid methods for the requested resource.

    

5. Deep Dive

   Everything and more…

   The 405 Method Not Allowed status code represents a fundamental aspect of HTTP method handling and REST API design. Implementation requires careful consideration of allowed methods, documentation, and security implications. The response MUST include an Allow header listing valid methods, as specified in RFC 7231. Method handling should consider various scenarios: standard methods (GET, POST), custom methods, and method overriding. Security implications include protecting against unauthorized methods and ensuring proper access control. The 405 status code serves as a key tool in API design, requiring thoughtful implementation to maintain usability and security.

 

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