Method Not Allowed

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This error occurs when the requested resource path exists, but does not support the HTTP method (e.g. POST, PUT, DELETE) used in the request.

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Error Response Example (RFC 9457)

{
  "type": "https://docs.apinow.app/errors/method-not-allowed",
  "title": "Method Not Allowed",
  "status": 405,
  "code": "METHOD_NOT_ALLOWED",
  "detail": "Method PUT is not allowed on path /api/v1/posts",
  "instance": "/api/v1/posts"
}

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Troubleshooting Guide

For API Consumers (What it means & how to fix)

• Check Allowed Methods: Review the API specification to check which HTTP methods are supported for the endpoint. For example, some collection endpoints only support GET and POST (for reading and creating), while individual resource endpoints support GET, PATCH, and DELETE.

For API Authors (Domain & API Modeler notes)

• Action Exposures: In the API Modeler, check which actions (Create, Read, Update, Delete) you have selected to expose for the entity. If an action is unselected, the platform will return 405 Method Not Allowed when clients attempt to call it.