Web calls

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import Vapi from '@vapi-ai/web';
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const vapi = new Vapi('YOUR_PUBLIC_API_KEY');
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// Start voice conversation
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vapi.start('YOUR_ASSISTANT_ID');
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// Listen for events
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vapi.on('call-start', () => console.log('Call started'));
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vapi.on('call-end', () => console.log('Call ended'));
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vapi.on('message', (message) => {
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  if (message.type === 'transcript') {
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    console.log(`${message.role}: ${message.transcript}`);
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  }
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});

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import { VapiClient } from "@vapi-ai/server-sdk";
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const vapi = new VapiClient({
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  token: process.env.VAPI_API_KEY!
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});
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// Create an outbound call
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const call = await vapi.calls.create({
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  phoneNumberId: "YOUR_PHONE_NUMBER_ID",
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  customer: { number: "+1234567890" },
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  assistantId: "YOUR_ASSISTANT_ID"
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});
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console.log(`Call created: ${call.id}`);

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const assistant = await vapi.assistants.create({
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  name: "Sales Assistant",
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  firstMessage: "Hi! I'm calling about your interest in our software solutions.",
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  model: {
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    provider: "openai",
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    model: "gpt-4o",
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    temperature: 0.7,
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    messages: [{
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      role: "system",
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      content: "You are a friendly sales representative. Keep responses under 30 words."
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    }]
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  },
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  voice: {
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    provider: "11labs",
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    voiceId: "21m00Tcm4TlvDq8ikWAM"
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  }
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});

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async function runBulkCallCampaign(assistantId: string, phoneNumberId: string) {
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  const prospects = [
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    { number: "+1234567890", name: "John Smith" },
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    { number: "+1234567891", name: "Jane Doe" },
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    // ... more prospects
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  ];
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  const calls = [];
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  for (const prospect of prospects) {
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    const call = await vapi.calls.create({
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      assistantId,
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      phoneNumberId,
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      customer: prospect,
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      metadata: { campaign: "Q1_Sales" }
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    });
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    calls.push(call);
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    // Rate limiting
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    await new Promise(resolve => setTimeout(resolve, 2000));
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  }
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  return calls;
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}

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import express from 'express';
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const app = express();
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app.use(express.json());
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app.post('/webhook/vapi', async (req, res) => {
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  const { message } = req.body;
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  switch (message.type) {
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    case 'status-update':
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      console.log(`Call ${message.call.id}: ${message.call.status}`);
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      break;
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    case 'transcript':
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      console.log(`${message.role}: ${message.transcript}`);
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      break;
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    case 'function-call':
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      return handleFunctionCall(message, res);
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  }
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  res.status(200).json({ received: true });
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});
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function handleFunctionCall(message: any, res: express.Response) {
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  const { functionCall } = message;
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  switch (functionCall.name) {
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    case 'lookup_order':
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      const orderData = { orderId: functionCall.parameters.orderId, status: 'shipped' };
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      return res.json({ result: orderData });
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    default:
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      return res.status(400).json({ error: 'Unknown function' });
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  }
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}
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app.listen(3000, () => console.log('Webhook server running on port 3000'));