AuthSession; Google Authentication documentation

Hello to everybody!

I’m trying to setup the Google authentication using AuthSession in this documentation (without Firebase)

The first problem is, that the slack example doesn’t work: on the devices and simulators nothing happen after pushing the button, and in web mode it returns an error

Error 401: invalid_client

The OAuth client was not found.

What I’ve done using steps in documentation:

  • I’m not sure if it’s necessary, but I’ve installed yarn add expo-application

  • I’ve registered in Credentials page (Google Cloud Platform)

  • Logged in using expo login, in the terminal where I was starting expo start

  • Create a new Google Client ID that will be used with expoClientId

  • (Don’t know if it’s necessary) I’ve created a project in and then published the project using dashboard of expo start


“expo”: {
“name”: “rn-my-project”,
“slug”: “rn-my-project”,
“version”: “1.0.0”,
“orientation”: “portrait”,
… }

Using the code in the example, provided in documentation for Google, I receive null as response.

As I understand, this should be enough to test the Google Authentication using AuthSession in Expo Go app. I also made iosClientId, androidClientId and webClientId, but I’m not sure if I made everything.

Will be glad for any help, because I couldn’t find any person with the problem as mine.

Yours sincerely.

Screenshot for publishing screen in expo start, because I’m allowed to add only one image in the post