Node server example not working?

ordinary-sapphire · 2025-05-07T17:29:13.972Z

I cloned and setup https://github.com/VapiAI/server-example-javascript-node but it doesn't appear to be working. Looking at the call logs I see this error: [ERROR] Your server rejected `conversation-update` webhook. Error: Request failed with status code 500 I have my server URL set to my ngrok and see the traffic, but the agent only says the cached Hello. Is this example up to date? Am I missing something that is needed to get this to work? I get these errors when running pnpm start but it does start and receive updates from the server: https://pastebin.com/XcVmcDpy

V

Vapi Support BotAPP•5/7/25, 5:31 PM

Fix for 500 Error in Conversation-Update Webhook

Check your webhook route handler to ensure it's properly configured as a POST endpoint and correctly processes the incoming data format from Vapi:

// In your Express route handler
app.post('/callbacks/vapi', (req, res) => {
  try {
    console.log('Received webhook:', JSON.stringify(req.body));
    // Process the webhook data
    res.status(200).send('OK');
  } catch (error) {
    console.error('Error processing webhook:', error);
    res.status(500).send('Error processing webhook');
  }
});

// In your Express route handler
app.post('/callbacks/vapi', (req, res) => {
  try {
    console.log('Received webhook:', JSON.stringify(req.body));
    // Process the webhook data
    res.status(200).send('OK');
  } catch (error) {
    console.error('Error processing webhook:', error);
    res.status(500).send('Error processing webhook');
  }
});

// In your Express route handler
app.post('/callbacks/vapi', (req, res) => {
  try {
    console.log('Received webhook:', JSON.stringify(req.body));
    // Process the webhook data
    res.status(200).send('OK');
  } catch (error) {
    console.error('Error processing webhook:', error);
    res.status(500).send('Error processing webhook');
  }
});

// In your Express route handler
app.post('/callbacks/vapi', (req, res) => {
  try {
    console.log('Received webhook:', JSON.stringify(req.body));
    // Process the webhook data
    res.status(200).send('OK');
  } catch (error) {
    console.error('Error processing webhook:', error);
    res.status(500).send('Error processing webhook');
  }
});

Also verify your ngrok command uses the correct port:

ngrok http YOUR_SERVER_PORT

ngrok http YOUR_SERVER_PORT

ngrok http YOUR_SERVER_PORT

ngrok http YOUR_SERVER_PORT

Sources:

⤵️ Mention @Vapi Support Bot for follow-ups 🐥

V

Vapi Support BotAPP•5/7/25, 5:31 PM

Fix for 500 Error in Conversation-Update Webhook

Check your webhook route handler to ensure it's properly configured as a POST endpoint and correctly processes the incoming data format from Vapi:

// In your Express route handler
app.post('/callbacks/vapi', (req, res) => {
  try {
    console.log('Received webhook:', JSON.stringify(req.body));
    // Process the webhook data
    res.status(200).send('OK');
  } catch (error) {
    console.error('Error processing webhook:', error);
    res.status(500).send('Error processing webhook');
  }
});

// In your Express route handler
app.post('/callbacks/vapi', (req, res) => {
  try {
    console.log('Received webhook:', JSON.stringify(req.body));
    // Process the webhook data
    res.status(200).send('OK');
  } catch (error) {
    console.error('Error processing webhook:', error);
    res.status(500).send('Error processing webhook');
  }
});

// In your Express route handler
app.post('/callbacks/vapi', (req, res) => {
  try {
    console.log('Received webhook:', JSON.stringify(req.body));
    // Process the webhook data
    res.status(200).send('OK');
  } catch (error) {
    console.error('Error processing webhook:', error);
    res.status(500).send('Error processing webhook');
  }
});

// In your Express route handler
app.post('/callbacks/vapi', (req, res) => {
  try {
    console.log('Received webhook:', JSON.stringify(req.body));
    // Process the webhook data
    res.status(200).send('OK');
  } catch (error) {
    console.error('Error processing webhook:', error);
    res.status(500).send('Error processing webhook');
  }
});

Also verify your ngrok command uses the correct port:

ngrok http YOUR_SERVER_PORT

ngrok http YOUR_SERVER_PORT

ngrok http YOUR_SERVER_PORT

ngrok http YOUR_SERVER_PORT

Sources:

⤵️ Mention @Vapi Support Bot for follow-ups 🐥

V

VapiAPP•5/8/25, 1:32 AM

Hey, really sorry for your experience.. If possible, could you record a loom video describing this error/behavior or inconsistency in the dashboard with the steps to reproduce it? That way, I can share this with my team, and we'll take a look. We'll even try to reproduce the same so we can fix it for you.

Also, I'll request you to share your call ID.

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