1const express = require("express");
2const app = express();
3
4app.use(express.json());
5
6app.post("/webhook", (req, res) => {
7    const body = req.body;
8    let ackRef = req.headers["x-expected-ack-reference"];
9
10    console.log("Received V2 webhook:", JSON.stringify(body));
11    console.log("Received Ack Reference from header:", ackRef);
12
13    if (!ackRef) {
14        ackRef = `fallback-ref-${Date.now()}`;
15    }
16
17    res.json({
18        ackReference: ackRef,
19        status: "received"
20    });
21});

1@RestController
2public class WebhookController {
3
4    @PostMapping("/webhook")
5    public ResponseEntity<?> receiveWebhook(
6        @RequestBody String body,
7        @RequestHeader(value = "X-Expected-Ack-Reference", required = false) String ackRef) {
8
9        System.out.println("Received V2 webhook: " + body);
10        System.out.println("Received Ack Reference from header: " + ackRef);
11
12        if (ackRef == null || ackRef.isEmpty()) {
13            ackRef = "fallback-ref-" + System.currentTimeMillis();
14        }
15
16        Map<String, String> response = new HashMap<>();
17        response.put("ackReference", ackRef);
18        response.put("status", "received");
19
20        return ResponseEntity.ok(response);
21    }
22}