How to Send and Receive SMS Messages With Node.js and Express

basic-express.js

const app = require('express')()
const bodyParser = require('body-parser')

app.use(bodyParser.json())
app.use(bodyParser.urlencoded({ extended: true }))

app.listen(3000)

buy-number.sh

$ nexmo number:buy --country_code US --confirm

create-index.sh

$ touch index.js

create-server.sh

$ touch server.js

inbound-webhook.js

app.post('/webhooks/inbound-message', (req, res) => {
  console.log(req.body);

  res.status(200).end();
});

initialize-nexmo-beta.js

const Nexmo = require('nexmo')

const nexmo = new Nexmo({
  apiKey: NEXMO_API_KEY,
  apiSecret: NEXMO_API_SECRET,
  applicationId: NEXMO_APPLICATION_ID,
  privateKey: NEXMO_APPLICATION_PRIVATE_KEY_PATH
})

initialize-nexmo.js

const Nexmo = require('nexmo')

const nexmo = new Nexmo({
  apiKey: NEXMO_API_KEY,
  apiSecret: NEXMO_API_SECRET
})

install-express.sh

$ npm install express body-parser

install-nexmo-beta.sh

$ npm install nexmo@beta

install-nexmo.sh

$ npm init
$ npm install nexmo

ngrok.sh

$ ngrok http 3000

run-node.sh

$ node index.js

run-server.sh

$ node server.js

send-messages.js

let text = "👋Hello from Nexmo";

nexmo.channel.send(
  { "type": "sms", "number": "TO_NUMBER" },
  { "type": "sms", "number": "Nexmo" },
  {
    "content": {
      "type": "text",
      "text": text
    }
  },
  (err, responseData) => {
    if (err) {
      console.log("Message failed with error:", err);
    } else {
      console.log(`Message ${responseData.message_uuid} sent successfully.`);
    }
  }
);

send-sms.js

let text = "👋Hello from Nexmo";

nexmo.message.sendSms("Nexmo", "TO_NUMBER", text, {
  type: "unicode"
}, (err, responseData) => {
  if (err) {
    console.log(err);
  } else {
    if (responseData.messages[0]['status'] === "0") {
      console.log("Message sent successfully.");
    } else {
      console.log(`Message failed with error: ${responseData.messages[0]['error-text']}`);
    }
  }