Ory is the largest open source community in the world for cloud software application security. We maintain advanced open source security software solving authentication, authorization, access control, application network security, and delegation. Ory implements a variety of industry and best-practice standards including OAuth 2.0 / OAuth 2.1, OpenID Connect, Zero Trust Networking, Google Zanzibar Policy Framework, FIDO2 U2F, WebAuthn, TOTP, and more.

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Hey everyone, curious to hear your thoughts on whatwould be the best practices for this use case.

We are doing auth using cookies between app and API gateway. We have a challenge there in regards to CORS (as we have multiple domains) but we have a possible workaround.

My question is, what is the Ory recommendation in regards to autorization on downstream services.

i.e

1. API receives session id and validates
2. API then calls downstream services (and they need to validate).

Should we be passing the session id and validating via API? Should we be doing OAuth 2.0 via Hydra on downstream services?

what is a simple but secure way to tackle this in your experience?