Getting HTTP Error 405 - Method Not Allowed. How Do I Fix This? or Why Am I Seeing HTTP Error 405 and

405 usually means the route exists but the method isn’t allowed.

Check:
- Are you *sure* the endpoint supports POST? Maybe docs are wrong.
- Is there middleware blocking it? (Like CSRF checks.)

Tool: Swagger UI to test the API interactively.

Yo, update your post with the server stack! 405 could be anything—Node, PHP, Python all handle it differently.

For me, it was a missing `@RequestMapping(method = POST)` in Spring.

Also, try hitting the API from a different client (like mobile). Might rule out browser quirks.