Setup Zoom Webhooks

POST /webhooks/options

{
  "notification_endpoint_url": "https://your-server.com/zoom/webhook",
  "events": [
    "meeting.started",
    "meeting.ended",
    "meeting.participant_joined",
    "recording.completed"
  ]
}

GET /webhooks/options

{
  "notification_endpoint_url": "https://your-server.com/zoom/webhook",
  "events": [
    "meeting.started",
    "meeting.ended",
    "meeting.participant_joined",
    "recording.completed"
  ]
}

PATCH /webhooks/options

{
  "events": [
    "meeting.started",
    "meeting.ended",
    "recording.completed",
    "user.created"
  ]
}

{
  "notification_endpoint_url": "string (HTTPS URL)",
  "events": ["array of event type strings"],
  "secret_token": "string (for signature verification)"
}

const express = require('express');
const crypto = require('crypto');
const axios = require('axios');

const app = express();
app.use(express.json());

// Verify webhook signature
function verifyWebhookSignature(req, secret) {
  const message = `v0:${req.headers['x-zm-request-timestamp']}:${JSON.stringify(req.body)}`;
  const hashForVerify = crypto
    .createHmac('sha256', secret)
    .update(message)
    .digest('hex');
  
  const signature = `v0=${hashForVerify}`;
  return signature === req.headers['x-zm-signature'];
}

// Handle webhook events
app.post('/zoom/webhook', (req, res) => {
  const WEBHOOK_SECRET = process.env.ZOOM_WEBHOOK_SECRET;
  
  if (!verifyWebhookSignature(req, WEBHOOK_SECRET)) {
    return res.status(401).send('Unauthorized');
  }
  
  const { event, payload } = req.body;
  
  switch (event) {
    case 'meeting.started':
      console.log(`Meeting started: ${payload.object.topic}`);
      break;
    case 'meeting.ended':
      console.log(`Meeting ended: ${payload.object.uuid}`);
      break;
    case 'recording.completed':
      processRecording(payload.object);
      break;
  }
  
  res.status(200).send('OK');
});

async function updateWebhookSubscription(accessToken, events) {
  const response = await axios.patch(
    'https://api.zoom.us/v2/webhooks/options',
    { events },
    {
      headers: {
        'Authorization': `Bearer ${accessToken}`,
        'Content-Type': 'application/json'
      }
    }
  );
  return response.data;
}

// Add new events to subscription
await updateWebhookSubscription(token, [
  'meeting.started',
  'meeting.ended',
  'recording.completed',
  'user.created',  // New event
  'user.deleted'   // New event
]);

// Step 1: Subscribe to meeting events (one-time setup)
await updateWebhookSubscription(token, ['meeting.started', 'meeting.ended']);

// Step 2: Create meeting via REST API
const meeting = await createMeeting(token, { topic: 'Team Standup', type: 2 });

// Step 3: When meeting.started webhook arrives, track it
// Step 4: When meeting.ended webhook arrives, process attendance