I'm currently using ingress-nginx, which is now deprecated, and I'm thinking about moving to an API Gateway. From what I understand, it seems that none of the Envoy-based API gateways, like the Envoy API Gateway and KGateway, support OAuth2 client credentials flow for protecting the upstream or backend. However, I've noticed that NGINX/OpenResty-based API Gateways, such as Apache APISIX and Kong, do support this type of authorization. I'm also considering go-based API Gateways like KrakenD and Tyk. Is that assessment accurate?
1 Answer
Just a heads-up, your terms are a bit mixed up. An API Gateway is different from a Gateway API. The API Gateway isn’t really about routing or managing auth — that's typically where you'd set up something like OAuth2 Proxy to handle that job. It’s important to keep those roles distinct!

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