Webhooks

clay webhooks create https://example.com/hooks/clay

{
  "id": "wh_abc123",
  "url": "https://example.com/hooks/clay",
  "createdAt": "2026-06-16T17:50:00.000Z",
  "signingSecret": "whsec_..."
}

{
  "webhookId": "wh_abc123",
  "createdAt": "2026-06-16T17:50:00.000Z",
  "data": {
    "routine_run_id": "run_abc123"
  }
}

import crypto from 'node:crypto';
import express from 'express';

const app = express();

function sign(body) {
  return `sha256=${crypto
    .createHmac('sha256', process.env.CLAY_WEBHOOK_SIGNING_SECRET)
    .update(body, 'utf8')
    .digest('hex')}`;
}

function signaturesMatch(actual, expected) {
  const actualBuffer = Buffer.from(actual);
  const expectedBuffer = Buffer.from(expected);
  return actualBuffer.length === expectedBuffer.length && crypto.timingSafeEqual(actualBuffer, expectedBuffer);
}

async function fetchRunResults(routineRunId) {
  // For batch routine runs, use `/public/v0/routines/run-batch/${routineRunId}/results`.
  const result = await fetch(`https://api.clay.com/public/v0/routines/run/${routineRunId}/results`, {
    headers: { 'clay-api-key': process.env.CLAY_PUBLIC_API_KEY },
  });

  return result.json();
}

app.post('/hooks/clay', express.raw({ type: 'application/json' }), async (req, res) => {
  const body = req.body.toString('utf8');
  const actualSignature = req.get('X-Clay-Signature') ?? '';
  const expectedSignature = sign(body);

  if (!signaturesMatch(actualSignature, expectedSignature)) {
    return res.sendStatus(401);
  }

  const event = JSON.parse(body);
  const routineRunId = event.data.routine_run_id;
  const run = await fetchRunResults(routineRunId);

  return res.sendStatus(204);
});