Function webhookHandler

webhookHandler(
    pay: Sarraf,
    onEvent: (event: SarrafEvent) => unknown,
    options?: WebhookHandlerOptions,
): (req: RawBodyRequest, res: ServerResponse) => Promise<void>
Express handler that verifies, normalizes and dispatches provider webhooks.
```
app.post("/api/webhooks/:provider", rawBody(), webhookHandler(pay, async (event) => {
  await queue.add("payment-event", event, { jobId: event.id }); // dedupe on event.id
}));
```
Parameters
- pay: Sarraf
- onEvent: (event: SarrafEvent) => unknown
- options: WebhookHandlerOptions = {}
Returns (req: RawBodyRequest, res: ServerResponse) => Promise<void>
- Defined in packages/express/src/index.ts:98