@loopstack/google-workspace-module

Google Workspace integration for the Loopstack AI  automation framework.

This module provides a Google OAuth 2.0 provider and tools for Google Workspace services. It registers a Google OAuth provider with @loopstack/oauth-module, enabling Google authentication in any Loopstack workflow, and provides tools for interacting with Google Workspace APIs such as Calendar, Drive, and Gmail.

Overview

The Google Workspace Module includes a provider implementation for @loopstack/oauth-module. It implements the OAuthProviderInterface and self-registers with the OAuthProviderRegistry on startup. Once registered, the generic OAuth workflow can handle provider: 'google' automatically.

By using this module, you’ll be able to:

• Authenticate users with their Google account via OAuth 2.0
• Request access to Google Workspace APIs (Calendar, Gmail, Drive, etc.) with configurable scopes
• Automatically refresh expired Google access tokens using refresh tokens
• Fetch, create, and manage Google Calendar events
• Search, read, send, and reply to Gmail messages
• List, upload, download, and inspect Google Drive files

Installation

See SETUP.md for installation and setup instructions.

This module requires @loopstack/oauth-module as a peer dependency.

How It Works

Provider Registration

The GoogleWorkspaceOAuthProvider implements OnModuleInit and registers itself with the OAuthProviderRegistry at startup:

onModuleInit(): void {
  this.providerRegistry.register(this);
}

After registration, the generic OAuthWorkflow from @loopstack/oauth-module can handle authentication for provider: 'google'.

Provider Details

Supported Operations

• buildAuthUrl(scopes, state) — Builds a Google OAuth authorization URL with the given scopes and CSRF state parameter. Requests access_type: offline and prompt: consent to ensure a refresh token is returned.
• exchangeCode(code) — Exchanges an authorization code for access and refresh tokens via Google’s token endpoint.
• refreshToken(refreshToken) — Refreshes an expired access token using a stored refresh token.

Tools

Calendar (3 tools)

• GoogleCalendarListCalendarsTool — List all calendars for the authenticated user
• GoogleCalendarFetchEventsTool — Fetch events from a Google Calendar within a time range
• GoogleCalendarCreateEventTool — Create a new event on a Google Calendar

Gmail (4 tools)

• GmailSearchMessagesTool — Search Gmail messages using query filters
• GmailGetMessageTool — Get the full content of a Gmail message
• GmailSendMessageTool — Send a new email message
• GmailReplyToMessageTool — Reply to an existing email thread

Drive (4 tools)

• GoogleDriveListFilesTool — List files and folders in Google Drive
• GoogleDriveGetFileMetadataTool — Get metadata for a Google Drive file
• GoogleDriveUploadFileTool — Upload a file to Google Drive
• GoogleDriveDownloadFileTool — Download a file from Google Drive

Usage in Workflows

Once registered, any workflow can trigger Google authentication by launching the OAuth workflow with provider: 'google':

constructor(public readonly oAuth: OAuthWorkflow) { super(); }
 
// In a transition method:
const result = await this.oAuth.run(
  { provider: 'google', scopes: ['https://www.googleapis.com/auth/calendar.readonly'] },
  { alias: 'oAuth', callback: { transition: 'authCompleted' } },
);

See @loopstack/oauth-module and @loopstack/google-oauth-calendar-example for complete usage examples.

Dependencies

• @loopstack/oauth-module — Provides OAuthProviderRegistry, OAuthProviderInterface, and OAuthTokenSet

About

Author: Jakob Klippel 

License: MIT

Additional Resources

• Loopstack Documentation 
• Getting Started with Loopstack 
• For more examples see the Loopstack Registry