How to build a real-time Google Calendar API integration

Integrating real-time Google Calendar sync into a product requires a combination of push notifications and incremental sync to ensure data consistency and quick updates, as meeting changes occur. Push notifications provide near-instant alerts whenever a change is made to a calendar, but they don't include the event data, which requires a subsequent incremental sync to fetch the actual changes. This dual approach ensures timely updates while overcoming the unreliability of push notifications alone due to potential missed signals. Implementing this system from scratch is complex, involving challenges such as managing OAuth tokens, renewing webhook channels, verifying domains, and handling sync token management, all while staying within API rate limits. The code-first integration platform Nango simplifies this process by offering out-of-the-box solutions for OAuth, durable sync infrastructure, and webhook management, allowing developers to implement a complete real-time sync system efficiently. Nango also provides tools like the AI Function Builder to generate integration code, enabling rapid development of Google Calendar event syncs that automatically handle channel renewals, process webhooks, and update backend systems.

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