echo-e2e/src/twilio/service.ts

**Testing phone calls is hard. Testing AI-powered phone calls is even harder.**

import twilio from 'twilio';
import validatePhoneNumber from "../helpers/validatePhoneNumber";

// @ts-ignore
export const twilioClient = new twilio(
    process.env.TWILIO_ACCOUNT_SID,
    process.env.TWILIO_AUTH_TOKEN
);

export const makeCall = async (to: string, url: string, callbackUrl: string) => {
    if (!validatePhoneNumber(to)) {
        throw new Error(`The provided phone number '${to}' is not a valid phone number.`);
    }

    const from = process.env.TWILIO_FROM_NUMBER;

    if (!validatePhoneNumber(from)) {
        throw new Error(`The provided phone number '${from}' is not a valid phone number.`);
    }

    return await twilioClient.calls.create({
        from,
        to,
        // url: url,
        twiml: `<Response>
    <Connect>
       <Stream url="${url}" />
   </Connect>
</Response>`,
        record: true,
        statusCallback: callbackUrl,
        timeLimit: process.env.MAX_CALL_LIFETIME_SECONDS,
    })
}

export const hangupCall = async (callSid: string) => {
    return await twilioClient.calls(callSid).update({
        status: 'completed'
    });
}