Getting a http status 405 error - What am I doing wrong? or Why am I seeing http status 405 and how d

"Getting a http status 405 error - What am I doing wrong?"

Hey folks,

So I’m hitting a http status 405 (Method Not Allowed) when trying to POST to an endpoint that *should* work. Double-checked the docs, and it says POST is supported.

Am I missing something obvious? Maybe a headers issue? Or could the server just be picky?

Kinda frustrating—anyone else run into this? How’d you fix it?

Thanks!

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or

"http status 405 - Method Not Allowed. What's the best way to handle this?"

Ugh, http status 405 strikes again.

Trying to send a PUT request, but the server’s like "nope." Checked the allowed methods, and PUT *is* listed.

Is this a backend config problem? Or am I just dumb?

What’s your go-to fix for this? Cache? Different endpoint? Beg the devs?

Help a dev out!

Hey! Had the same issue last week. Turns out the server was blocking POST requests without the `Content-Type: application/json` header.

Double-check your headers—sometimes the API docs don’t mention it explicitly. Also, try tools like Postman or Insomnia to test the endpoint. They show the exact request/response, which helps debug http status 405 errors.

If that doesn’t work, maybe the endpoint has CORS restrictions?

Ugh, http status 405 is the worst.

First thing I’d do is verify the endpoint URL. Sounds dumb, but I’ve wasted hours because of a typo.

Next, check if the server expects a trailing slash or not. Some APIs are weirdly strict about that.

If all else fails, curl is your friend:

```
curl -X POST -H "Content-Type: application/json" -d '{"key":"value"}' https://your-api.com/endpoint
```

405 usually means the method (POST/PUT) isn’t allowed for *that specific URL*.

Could be:
- Wrong URL (e.g., posting to `/users` instead of `/users/create`)
- Server-side routing misconfigured
- API versioning issue (maybe you’re hitting v1 instead of v2)

Try sniffing the traffic with Fiddler or Chrome DevTools to see what’s really happening.

Been there! For me, it was a dumb mistake—I was sending a GET request instead of POST.

Check your client code. If you’re using fetch/Axios, maybe the method isn’t being set correctly.

Also, some APIs reject POST without a body, even if it’s just `{}`. Worth a shot!

http status 405 can be sneaky.

One time, the server only accepted POST over HTTPS, not HTTP. Another time, the endpoint was case-sensitive (`/Api` vs `/api`).

If the docs say POST is allowed, maybe the backend hasn’t been deployed yet? Happens more often than you’d think.

Hey! Just wanted to say thanks for all the suggestions. Turns out it *was* a headers issue—I wasn’t sending `Content-Type`.

Still weird that the docs didn’t mention it, but at least it’s working now.

For anyone else stuck, Postman’s "Code" feature helped me see the exact request format. Appreciate the help!

Pro tip: Check the `Allow` header in the response. It’ll tell you which methods *are* supported.

If PUT is listed but still failing, the server might have additional checks (like auth or CSRF tokens).

Tools like httpie (`http PUT url`) make testing easier.

405 errors suck.

Try hitting the endpoint with OPTIONS first—it’ll list allowed methods. If PUT *is* allowed but still failing, maybe the server’s load balancer or firewall is blocking it.

Also, check if you’re being rate-limited. Some APIs return 405 instead of 429.