feat: Implement Outlook Calendar Cache with Microsoft Graph Change No… #22120

harshith-eth · 2025-06-28T09:27:04Z

…tifications

Added caching support to Office365CalendarService
Created MicrosoftGraphSubscriptionService for webhook management
Added webhook endpoint for Microsoft Graph notifications
Updated schema to support Microsoft Graph subscriptions
Added tests for the implementation

Fixes #21050

What does this PR do?

Fixes #XXXX (GitHub issue number)
Fixes CAL-XXXX (Linear issue number - should be visible at the bottom of the GitHub issue description)

Visual Demo (For contributors especially)

A visual demonstration is strongly recommended, for both the original and new change (video / image - any one).

Mandatory Tasks (DO NOT REMOVE)

I have self-reviewed the code (A decent size PR without self-review might be rejected).
I have updated the developer docs in /docs if this PR makes changes that would require a documentation change. If N/A, write N/A here and check the checkbox.
I confirm automated tests are in place that prove my fix is effective or that my feature works.

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Are there environment variables that should be set?
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Checklist

I haven't read the contributing guide
My code doesn't follow the style guidelines of this project
I haven't commented my code, particularly in hard-to-understand areas
I haven't checked if my changes generate no new warnings

Summary by cubic

Added caching for Outlook/Office 365 calendar availability and real-time updates using Microsoft Graph change notifications. This reduces API calls and keeps calendar data fresh.

New Features
- Cached busy times for Outlook calendars to improve performance.
- Webhook endpoint and subscription service for Microsoft Graph notifications.
- Automatic cache invalidation and refresh when calendar events change.
- Updated database schema to store Microsoft Graph subscription info.

…tifications - Added caching support to Office365CalendarService - Created MicrosoftGraphSubscriptionService for webhook management - Added webhook endpoint for Microsoft Graph notifications - Updated schema to support Microsoft Graph subscriptions - Added tests for the implementation Fixes calcom#21050

vercel · 2025-06-28T09:27:10Z

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CLAassistant · 2025-06-28T09:27:11Z

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graphite-app · 2025-06-28T09:30:10Z

Graphite Automations

"Add consumer team as reviewer" took an action on this PR • (06/28/25)

1 reviewer was added to this PR based on Keith Williams's automation.

"Add community label" took an action on this PR • (06/28/25)

1 label was added to this PR based on Keith Williams's automation.

cubic-dev-ai

cubic found 2 issues across 6 files. Review them in cubic.dev

_{React with 👍 or 👎 to teach cubic. Tag @cubic-dev-ai to give specific feedback.}

cubic-dev-ai · 2025-06-28T09:32:24Z

packages/app-store/office365calendar/api/webhook.ts

+        credentialId: true,
+        externalId: true,
+        integration: true,
+        eventTypeId: true,


eventTypeId is selected from the database but never used later, resulting in unnecessary data transfer.

cubic-dev-ai · 2025-06-28T09:32:24Z

packages/app-store/office365calendar/api/webhook.ts

+  const validationToken = query.validationToken;
+
+  if (validationToken) {
+    log.debug("Responding to Microsoft Graph validation", { validationToken });


Rule violated: Avoid Logging Sensitive Information

Logs the Microsoft Graph `validationToken`, which is an authentication token and should not be written to logs per "Avoid Logging Sensitive Information" rule.

Suggested change

log.debug("Responding to Microsoft Graph validation", { validationToken });

log.debug("Responding to Microsoft Graph validation");

- Remove unused eventTypeId field from selectedCalendar query - Remove sensitive validationToken from debug logs - Fix TypeScript any type warning

kart1ka · 2025-07-16T15:24:12Z

Type checks and tests seem to be failing. Can you pls address them?

github-actions · 2025-07-31T00:27:51Z

This PR is being marked as stale due to inactivity.

coderabbitai · 2025-07-31T00:27:58Z

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harshith-eth requested review from a team as code owners June 28, 2025 09:27

graphite-app bot added the community Created by Linear-GitHub Sync label Jun 28, 2025

graphite-app bot requested a review from a team June 28, 2025 09:27

github-actions bot added $500 calendar-apps area: calendar, google calendar, outlook, lark, microsoft 365, apple calendar teams area: teams, round robin, collective, managed event-types ✨ feature New feature or request 💎 Bounty A bounty on Algora.io labels Jun 28, 2025

dosubot bot added the webhooks area: webhooks, callback, webhook payload label Jun 28, 2025

cubic-dev-ai bot reviewed Jun 28, 2025

View reviewed changes

fix: Address review comments from cubic-dev-ai

0e84b0e

- Remove unused eventTypeId field from selectedCalendar query - Remove sensitive validationToken from debug logs - Fix TypeScript any type warning

anikdhabal added the Medium priority Created by Linear-GitHub Sync label Jul 4, 2025

kart1ka marked this pull request as draft July 16, 2025 15:24

github-actions bot added the Stale label Jul 31, 2025

Merge branch 'calcom:main' into main

1c9ef5e

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feat: Implement Outlook Calendar Cache with Microsoft Graph Change No… #22120

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	log.debug("Responding to Microsoft Graph validation", { validationToken });
	log.debug("Responding to Microsoft Graph validation");

feat: Implement Outlook Calendar Cache with Microsoft Graph Change No… #22120

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Summary by cubic

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