Inclu Cat
Inclu Cat

Reputation: 402

Google OAuth consent screen: How do I know the user grants the requested access?

I'm building an Angular application that uses the Google API Client Library for JavaScript and it requires user permissions at login.
Permission to access Google Drive is required, but it is not checked when the consent screen is initially displayed.
So I need to know if the user has checked that checkbox on the consent screen to make sure the app works correctly.
How do I know that from the JavaScript code?

enter image description here

Upvotes: 1

Views: 1686

Answers (1)

Johannes Passing
Johannes Passing

Reputation: 2805

The response from the token endpoint (https://oauth2.googleapis.com/token) contains a scope field. This field tells you which scopes were actually granted:

{
  "access_token": "ya29.A0...",
  "expires_in": 3599,
  "scope": "https://www.googleapis.com/auth/cloud-platform https://www.googleapis.com/auth/userinfo.email openid",
  "token_type": "Bearer",
  "id_token": "ey..."
}

Upvotes: 2

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