Webhook Setup

1// Webhook verification (GET)
2app.get('/webhook', (req, res) => {
3  const mode = req.query['hub.mode'];
4  const token = req.query['hub.verify_token'];
5  const challenge = req.query['hub.challenge'];
6 
7  if (mode === 'subscribe' && token === 'YOUR_VERIFY_TOKEN') {
8    res.status(200).send(challenge);
9  } else {
10    res.sendStatus(403);
11  }
12});
13 
14// Webhook events (POST)
15app.post('/webhook', async (req, res) => {
16  const data = req.body;
17 
18  if (data.object === 'instagram') {
19    data.entry.forEach(entry => {
20      entry.changes.forEach(async change => {
21        if (change.field === 'comments') {
22          // New comment received
23          const commentId = change.value.id;
24          const text = change.value.text;
25          
26          // Auto-reply to comment
27          await instagram.replyToComment(commentId, 'Thanks for your comment!');
28        }
29      });
30    });
31  }
32 
33  res.sendStatus(200);
34});