OAuth 2.0 authentication on React Native

I’m trying to get an authorization code from /authorize on the frontend, and then send it over HTTPS to have it verified on my backend with a /token call, but I can’t get it to return the ID token on React Native.

The error I’ve been getting from the React Native package I’m trying to use is {“status”:400,“message”:“missing client secret”}, but it may be misconfigured, hence is why I’m looking to see if anyone got it to work with React Native before.