als-google-auth

1. Create a project in Google Cloud Console

   • Go to Google Cloud Console.
   • Sign in to your Google account.
   • Click on the project selection icon at the top of the page and select New Project.
   • Enter a name for your project (e.g., Calendar API Project).
   • Click Create.

2. Enable the service you need

   • In Google Cloud Console, after creating the project, navigate to API & Services > Library.
   • In the search bar, type the service you need, for example, "Google People API," and select it from the search results.
   • Click the Enable button to enable the API for your project.

3. Configure OAuth consent screen

   • Go to API & Services > OAuth consent screen.
   • User type: Select External.
   • In the App Name section, enter any name (e.g., Calendar API App).
   • Add users - Add your email.
   • Fill out the other required fields and click Save and Continue.
   • Add or remove scopes.
     • For example, https://www.googleapis.com/auth/calendar for full access.

4. Create credentials

   • Go to API & Services > Credentials.
   • Click the Create Credentials button and select OAuth Client ID.
   • Application type: Select Web application.
   • Name the application (e.g., Calendar API App).
   • In Authorized redirect URIs, add http://localhost:3000.
   • Click Create.
   • Save the client_id and client_secret.

5. Run the app with the following code:

const authorize = require('als-google-auth')
const { google } = require('googleapis');
const tokenPath = './token.json'; // File path to save token

authorize({
   port: 3000, 
   client_id, // Client ID from Google
   client_secret, // Client Secret from Google
   tokenPath, 
   scope: ['https://www.googleapis.com/auth/contacts'], // Scopes to work with, registered in Google
}).then(async auth => {
   // Example to work with Google Contacts API
   const service = google.people({ version: 'v1', auth });
   const response = await service.people.connections.list({
      resourceName: 'people/me',
      personFields: 'names,phoneNumbers,emailAddresses,metadata',
   });
   console.log(response.data.connections)
})