Setting up OAuth 2.
Before your application can use Google's OAuth 2.0 authentication system for user login, you must set up a project in the Google API Console to obtain OAuth 2.0 credentials, set a redirect URI, and (optionally) customize the branding information that your users see on the user-consent screen. You can also use the API Console to create a service account, enable billing, set up filtering, and do other tasks. For more details, see the Google API Console Help.
Obtain OAuth 2.
You need OAuth 2.0 credentials, including a client ID and client secret, to authenticate users and gain access to Google's APIs.
To view the client ID and client secret for a given OAuth 2.0 credential, click the following text: Select credential. In the window that opens, choose your project and the credential you want, then click View.
Or, view your client ID and client secret from the Credentials page in API Console:
- Go to the Credentials page.
- Click the name of your credential or the pencil () icon. Your client ID and secret are at the top of the page.
Set a redirect URI
The redirect URI that you set in the API Console determines where Google sends responses to your authentication requests.
To create, view, or edit the redirect URIs for a given OAuth 2.0 credential, do the following:
- Go to the Credentials page.
- In the OAuth 2.0 client IDs section of the page, click a credential.
- View or edit the redirect URIs.
If there is no OAuth 2.0 client IDs section on the Credentials page, then your project has no OAuth credentials. To create one, click Create credentials.
