HTTP Status 405 - Method Not Allowed

DELETE /api/system/config HTTP/1.1
Host: api.example.com

HTTP/1.1 405 Method Not Allowed
Allow: GET, PUT
Content-Type: application/json

{
  "error": "method_not_allowed",
  "message": "DELETE not supported for system config",
  "allowed_methods": ["GET", "PUT"]
}

POST /api/statistics HTTP/1.1
Host: api.example.com
Content-Type: application/json

{"metric": "value"}

HTTP/1.1 405 Method Not Allowed
Allow: GET, HEAD, OPTIONS
Content-Type: application/json

{
  "error": "read_only_resource",
  "message": "Statistics endpoint is read-only",
  "allowed_methods": ["GET", "HEAD", "OPTIONS"]
}

PATCH /api/orders/123 HTTP/1.1
Host: api.example.com
Content-Type: application/json

[{"op": "replace", "path": "/status", "value": "shipped"}]

HTTP/1.1 405 Method Not Allowed
Allow: GET, PUT, DELETE
Content-Type: application/json

{
  "error": "method_not_allowed",
  "message": "PATCH not supported, use PUT for full updates",
  "allowed_methods": ["GET", "PUT", "DELETE"]
}