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June 23, 2022 11:38 am GMT

Send SMS Messages with Node.js using the Vonage API

Send SMS Messages with Node.js using the Vonage API

Clone the Source Code on Github

Vonage is an American telecommunications company headquartered in New Jersey.

The company is a publicly held business cloud based communications provider.

Vonage offers SMS, MMS, Voice, and Video Streaming services via their API gateway.

Vonage's SMS API enables you to send and receive text messages to and from users worldwide, with these features:

  • Programmatically send and receive high volumes of SMS globally.
  • Send SMS with low latency and high delivery rates.
  • Receive SMS using local numbers.
  • Scale your applications with familiar web technologies.
  • Pay only for what you use, nothing more.
  • Auto-redact feature to protect privacy.

The Aim of this project is to create a simple Nodejs RESE API that uses Vonage SMS API

Step 1: Initialize Your Project

Start by initializing a Nodejs project in your project folder, and install the Vonage Server SDK for Node.js in your working directory:
Also install the ExpressJs framework and DotEnv for enviromental virables

$ npm init -y$ npm install @vonage/server-sdk --save$ npm i dotenv express

Your package.json will look similar to this:

{  "name": "vonage-sms",  "version": "1.0.0",  "description": "",  "main": "index.js",  "scripts": {    "start": "node index"  },  "keywords": [],  "author": "",  "license": "ISC",  "dependencies": {    "@vonage/server-sdk": "^2.11.1",    "dotenv": "^16.0.1",    "express": "^4.18.1"  },  "type": "module"}

Add "type": "module" to your package.json file to be able to use import statements.

Step 2: Create two files

lib.js and index.js as shown below:

  1. lib.js: a library file for the sendSms function that initializes a Vonage instance with your API credentials
// lib.jsimport Vonage from "@vonage/server-sdk";import 'dotenv/config'const vonage = new Vonage({    apiKey: process.env.VONAGE_API_KEY,    apiSecret: process.env.VONAGE_API_SECRET,});const sender = process.env.VONAGE_VIRTUAL_NUMBER;export const sendSms = (recipient, message) => {    return new Promise((resolve, reject) => {    console.log("Initial");    vonage.message.sendSms(sender, recipient, message, (err, responseData) => {            if (err) {                console.log(err);                reject(err.message)            } else {                if (responseData.messages[0]["status"] === "0") {                    console.dir(responseData);                    resolve(responseData);                } else {                    console.log(                        `Message failed with error: ${responseData.messages[0]["error-text"]}`                    );                    reject(`${responseData.messages[0]["error-text"]}`);                }            }        }    )    })};
  1. index.js: the main (entry) point for your application.
// index.jsimport express from "express";import 'dotenv/config'import { sendSms } from "./lib.js";const PORT = process.env.PORT;const { json, urlencoded } = express;const app = express();app.use(json());app.use(    urlencoded({        extended: true,    }));app.post('/send', (req, res) => {    const { phone, message } = req.body;    sendSms(phone, message)        .then((data) => res.json({ success: true, data }))        .catch((err) => res.json({ success: false, message: err }));});app.listen(PORT, () => {    console.log(`Server listening at http://localhost:${PORT}`);});

Step 3: get and Set your Vonage API Credentials

Next, you will need a Vonage API account. If you dont have one already, you can sign up and start building with about 2$ free credit.

Find your API key and secret in your Vonage Dashboard and assign them to enviromental variables in .env

PORT=3000VONAGE_VIRTUAL_NUMBER=GIFTIVONAGE_API_KEY=abc123VONAGE_API_SECRET=P1Qxyz000000

Step 4: Configure Sender Virtual Number or Register Recipient Test Number

To get Your Number, click here

  • Go to the Dashboard
  • Click Number, then Click Your Numbers

Vonage Your Phone Number

There, you can manage your virtual phone numbers and configure their settings.
However, for newly signup users, you can only use test numbers because you can only buy more numbers after upgrading to a paid account.

To get Test Numbers, click here

Vonage Test Phone Number

Until you upgrade your account by making your first payment, you will only be able to send messages to these numbers.

Add one or more phone numbers at your disposable. Vonage will send you a verification code either via SMS or voice message.

Step 5: Finally, run your nodejs express application

Open Postman, Insomnia, or any other http client and post to your server

http://localhost:3000/send

POST Request:

{    "phone": "+234 test-phone",    "message": "Hi Developer, testing for Vonage"}

POST Response:

{    "success": true,    "data": {        "messages": [            {                "to": "234-test-phone",                "message-id": "866cf22f-c55f-482b-81ba-faa02c69578e",                "status": "0",                "remaining-balance": "1.71020000",                "message-price": "0.09660000",                "network": "62130"            }        ],        "message-count": "1"    }}

If you receive the error message

Non-Whitelisted Destination. Your Vonage account is still in demo mode. While in demo mode you must add target numbers to your whitelisted destination list.

Then know that you need to verify if the recipient phone number is registered as a test-phone number as stated in step-4.


Original Link: https://dev.to/nditah/send-sms-messages-with-nodejs-using-the-vonage-api-208f

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