serverless-sms-sender.js

let AWS = require('aws-sdk');
const sns = new AWS.SNS();

exports.handler = async (event) => {

  let receiver = event['receiver'];
  let sender = event['sender'];
  let message = event['message'];

  let isPromotional = true;

  console.log("Sending message", message, "to receiver", receiver);

  try {
    let data = await sns.publish({
      Message: message,
      MessageAttributes: {
        'AWS.SNS.SMS.SMSType': {
          DataType: 'String',
          StringValue: 'Promotional'
        },
        'AWS.SNS.SMS.SenderID': {
          DataType: 'String',
          StringValue: sender
        },
      },
      PhoneNumber: receiver
    }).promise();

    console.log("Sent message to", receiver);
    return data;

  } catch (err) {
    console.log("Sending failed", err);
    throw err;
  }
}