405 Method Not Allowed Request error

Method not allowed

errorCode: METHOD_NOT_ALLOWED

What it means

The HTTP method is not supported for this endpoint.

What you can do

Use a method listed in the Allow response header.

Example response

application/problem+json

{
  "type": "https://docs.atlas.ilionx.dev/errors/METHOD_NOT_ALLOWED",  "title": "Method Not Allowed",  "status": 405,  "detail": "The HTTP method is not supported for this endpoint.",  "instance": "/v1/…",  "errorCode": "METHOD_NOT_ALLOWED"}

Branch on errorCode, not on detail: the code is stable, the wording may change.