Create and configure your Google OAuth client id
1: Navigate to APIs & Services > Credentials > OAuth client
Navigate to the Google OAuth credentials > OAuth client page
2: Select "Web application"
3: Enter a client name in the name field
4: Enter your domain in the "Authorized JavaScript origins" field
If you're running your app on a development server, you can enter your localhost domain instead of a production domain (for example, if your development server is running at http://localhost:5000).
5: Click the "Create" button
6: Copy your Google client id
7: Paste your Google client-id into UserKit Authentication settings
In your UserKit account, navigate to Settings > Authentication*
Then paste your Google client-id in the Client id field.