Problem between firebase function and Twilio & Nexmo

Question

I'm trying to deploy javascript function to Firebase that containing code to send SMS by Twilio.

Twilio js code run ok when testing it in stand alone separate file. When uploading complete code containing Twilio code to firebase function Error occur. I tried Nexmo and also face problem. Seem that firebase preventing Twilio and Nexmo!

Any suggestions?

Edited: Here is My Full Code

const functions = require("firebase-functions");

const admin = require('firebase-admin');

admin.initializeApp();

const db = admin.firestore();
const accountSid = 'AC18bda2c8129eedc0c13fb4123761eb44'; 
const authToken = 'xyzxyzyxz'; 
const client = require('twilio')(accountSid, authToken); 
 
exports.realtimefunction=functions.database.ref('/{X}/{Y}/{Z}').onCreate((snapshot,context)=>{


  client.messages 
      .create({ 
         body: 'Hi',  
         messagingServiceSid: 'MGf7sdf39d9f979ssdfeb9f16',      
         to: '+201011111111' 
       }) 
      .then(message => console.log(message.sid)) 
      .done();

  return null;
});

and error Message: Error: Functions did not deploy properly.

Answer 1

Are you on the free spark plan with Firebase? Firebase only allows external API access on the paid for "Blaze" plan see this question for the detailed answer. HTTP request to an external API in Firebase Cloud Functions (Spark Tier) refused

Answer 2

Here is an example that should work. Let me know if this works for you, or if you still have the error. This example should allow you to text a number, which will respond to you with the text you sent.

const functions = require('firebase-functions');
const admin = require('firebase-admin');
const Vonage = require('@vonage/server-sdk');

// Initialize Firebase app for database access
admin.initializeApp();

// get Firebase environment variables for Vonage
const {
  api_key,
  api_secret
} = functions.config().vonage;

// Initialize Vonage with application credentials
const vonage = new Vonage({
  apiKey: api_key,
  apiSecret: api_secret
});

// This function will serve as the webhook for incoming SMS messages,
// and will log the message into the Firebase Realtime Database
exports.inboundSMS = functions.https.onRequest(async (req, res) => {
  await admin.database().ref('/msgq').push(req.body);
  res.send(200);
});

// This function listens for updates to the Firebase Realtime Database
// and sends a message back to the original sender
exports.sendSMS = functions.database.ref('/msgq/{pushId}')
  .onCreate((message) => {
    const { msisdn, text, to } = message.val();
    // the incoming object - 'msisdn' is the your phone number, and 'to' is the Vonage number
    // vonage.message.sendSms(to, msisdn, text);
    return new Promise((respond, reject) => {
        vonage.message.sendSms(to, msisdn, `You sent the following text: ${text}`, 
        (err, res) => {
            if (err) {
                reject(err);
            } else {
                if (res.messages[0]['status'] === "0") {
                    respond("Message sent successfully.");
                } else {
                    reject(`Message failed with error: ${res.messages[0]['error-text']}`);
                }
            }
        })
    })
});