Common ION API Gateway error statuses

401 Unauthorized

OAuth 2.0 inbound bearer token is missing, invalid, or expired, or it could be that the target API server rejected the backend security (not as likely).

404 Not Found

The resource/path request was not found. This should normally not happen and indicates perhaps a mistake in the URL you are calling.

405 Method Not Allowed

You are calling an API by using a method that is not supported. For example, you are trying to POST to an API that allows only a GET.

429 Too Many Requests

You are calling an API with a Quota policy applied to it, and you have exceeded the allowed number of requests in a given time period.

504 Gateway Timeout

The target API server did not respond with the gateway’s configured timeout period of 60 seconds.