I’m at my wits end. I’m trying to implement PKCE flow in my react native application. Basically I want a user to authenticate, and then I want a pair of authorization token and refresh token for my custom API, so they wouldn’t ever need to authenticate again (unless physically choosing to log out of…

Yes! I got it! Your advice with Postman helped me see the error clearly. It turns out my code_verifier was incorrectly formed - it was too long. Ultimately, the real issue was in what types are returned in node’s crypto package (as a Buffer) and expo’s crypto package (expo-crypto) (as a Uint8Array)…

React Native with Expo: /oauth/token endpoint always results in access_denied in PKCE flow

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system Closed September 4, 2020, 9:29am 5

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React Native with Expo: /oauth/token endpoint always results in access_denied in PKCE flow

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