Saber na hora quando a paciente assina

curl https://api.westhetics.io/v1/webhooks \
  -H "Authorization: Bearer $WESTHETICS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "url": "https://crm.exemplo.com.br/webhooks/westhetics",
    "description": "Assinaturas",
    "events": ["signature_request.completed", "signature_request.declined", "signature_request.expired"]
  }'

import { Webhook } from 'standardwebhooks'

const wh = new Webhook(process.env.WESTHETICS_WEBHOOK_SECRET)

app.post('/webhooks/westhetics', express.raw({ type: 'application/json' }), async (req, res) => {
  let event
  try {
    event = wh.verify(req.body, req.headers)
  } catch {
    return res.status(400).end()
  }
  if (await alreadyHandled(req.headers['webhook-id'])) return res.status(204).end()

  if (event.type === 'signature_request.completed') {
    await markSaleAsSigned(event.data.appointmentId, event.data.protocolNumber)
  }
  res.status(204).end()
})