What This Is
We build custom integrations with Google Workspace APIs that connect your application to Gmail, Google Calendar, Google Drive, Google Sheets, and the Admin SDK — automating email workflows, syncing calendar data, managing documents programmatically, and provisioning users across your organisation.
Google Workspace exposes each service through its own API, unified by Google’s OAuth2 authentication and client library ecosystem. We build integrations that watch Gmail inboxes for incoming messages using Pub/Sub push notifications, manage Calendar events for scheduling systems, read and write files in Drive, pull data from Sheets as a lightweight data source, and manage users and groups through the Admin SDK.
We run Google Workspace integrations in production across our own platform — specifically Gmail watch with Pub/Sub for real-time email processing. That production experience means we understand the nuances: push notification reliability, watch renewal lifecycle, quota management, and the differences between delegated and service account authentication.
When You Need This
Google Workspace API integration makes sense when your organisation uses Google Workspace and your application needs to interact with that data rather than just linking to it. Common scenarios:
- You need to process incoming email automatically — parsing messages, extracting data, triggering workflows based on email content
- Calendar integration is required for scheduling features — checking availability, creating events, or syncing bookings
- Your application needs to read or write Google Sheets as a data source for reports, imports, or configuration
- Document management through Drive — creating, sharing, or organising files programmatically from your application
- User provisioning — creating Google Workspace accounts, managing groups, or syncing directory data with your application
How We Work
Google Workspace projects start with API and scope selection — identifying which Google services the integration touches and the minimum OAuth2 scopes required. Google’s consent screen shows users exactly what permissions they are granting, so we scope tightly to build trust.
We implement two authentication models depending on the use case. Delegated OAuth2 for actions taken on behalf of a specific user (reading their email, managing their calendar). Service accounts with domain-wide delegation for administrative operations (user provisioning, organisation-wide data access). The authentication layer manages token refresh, scope validation, and multi-user token storage.
Real-time event processing uses Google’s Pub/Sub push notifications where available (Gmail, Calendar). The system subscribes to changes, receives push notifications at verified webhook endpoints, and processes events through queue jobs. Watch subscriptions are automatically renewed before expiry to prevent gaps in coverage.
What You Get
- Gmail integration — watch inboxes for new messages, parse email content, send emails programmatically, and manage labels
- Calendar management — create, update, and query events with availability checking and attendee management
- Drive access — create, read, upload, and organise files in Google Drive with sharing permission management
- Sheets integration — read and write spreadsheet data for reporting, imports, or lightweight data management
- User provisioning — create and manage Google Workspace users and groups through the Admin SDK
- Pub/Sub push notifications — real-time event processing for Gmail and Calendar changes
- OAuth2 management — multi-user token handling with automatic refresh and scope management
Technologies We Use
- Google Workspace APIs — Gmail API, Calendar API, Drive API, Sheets API, Admin SDK
- Google Cloud Pub/Sub — push notifications for real-time Gmail and Calendar event processing
- Laravel — service layer with multi-user OAuth2 token management, webhook endpoints, and queue-based event processing
- PostgreSQL — token storage, watch subscription tracking, and synced data caching
Related Systems
Google Workspace integrations feed into operational systems — a CRM syncing email communication history, a booking system managing Calendar availability, or a reporting dashboard pulling data from Sheets for business metrics.
Talk to Us About Google Workspace Integration
If your application needs to work with Gmail, Calendar, Drive, or other Google Workspace services programmatically, get in touch and we will design the integration.
