Using Cognito as an Authorizer for API Gateway


I’m trying to use Cognito as an authorizer for an API on API Gateway, so that I can use the API from my React Native Expo app. I think that I should also use the Expo AppAuth module for this, but I’m not sure how.

I don’t want to use Amplify, just Cognito and API Gateway. I’ve looked at a couple guides online, but they haven’t been helpful.

I was wondering if anyone has experience with this and can offer suggestions about where to start?

I’m thoroughly lost.