Seshn + Segment

1npm install @segment/analytics-node

1import { Analytics } from '@segment/analytics-node';
2import { createHmac } from 'crypto';
3
4const analytics = new Analytics({
5  writeKey: process.env.SEGMENT_WRITE_KEY!,
6});
7const WEBHOOK_SECRET = process.env.SESHN_WEBHOOK_SECRET!;
8
9export async function POST(req: Request) {
10  const body = await req.text();
11  const signature = req.headers.get('x-webhook-signature');
12
13  const expected = 'sha256=' +
14    createHmac('sha256', WEBHOOK_SECRET).update(body).digest('hex');
15
16  if (signature !== expected) {
17    return new Response('Invalid signature', { status: 401 });
18  }
19
20  const event = req.headers.get('x-webhook-event')!;
21  const payload = JSON.parse(body);
22
23  // Map Seshn contact to Segment user
24  const userId = payload.contact?.id ?? payload.contactId ?? 'anonymous';
25
26  // Forward every Seshn event as a Segment track call
27  analytics.track({
28    userId,
29    event: `Seshn ${event}`,
30    properties: {
31      bookingId: payload.id,
32      serviceId: payload.serviceId ?? payload.service?.id,
33      serviceName: payload.service?.name,
34      seats: payload.seats,
35      amount: payload.amount ?? payload.payment?.amount,
36      currency: payload.currency ?? payload.payment?.currency,
37      slotStartTime: payload.slot?.startTime,
38      locationId: payload.locationId ?? payload.location?.id,
39      // Include the raw event type for downstream filtering
40      seshnEvent: event,
41    },
42    timestamp: new Date(),
43  });
44
45  // Identify the user if we have contact details
46  if (payload.contact) {
47    analytics.identify({
48      userId: payload.contact.id,
49      traits: {
50        name: payload.contact.name,
51        email: payload.contact.email,
52        phone: payload.contact.phone,
53      },
54    });
55  }
56
57  return new Response('OK', { status: 200 });
58}

1curl -X POST https://api.seshn.net/v1/webhooks \
2  -H "Authorization: Bearer sk_live_..." \
3  -H "Content-Type: application/json" \
4  -d '{
5    "url": "https://yourdomain.com/api/webhooks/seshn",
6    "events": [
7      "booking.created",
8      "booking.confirmed",
9      "booking.cancelled",
10      "booking.rescheduled",
11      "booking.checked_in",
12      "booking.hold_expired",
13      "booking.series_created",
14      "booking.series_cancelled",
15      "payment.succeeded",
16      "payment.failed",
17      "payment.refunded",
18      "entitlement.issued",
19      "entitlement.expired",
20      "waitlist.joined",
21      "waitlist.promoted",
22      "waitlist.expired"
23    ]
24  }'