Is there a best approach to deploy an architecture to send SMS using a Microservice model?

Question

We have a service within a Backend class, the service looks like:

// Setup AWS SNS
AWS.config.update({
    region: \'eu-west-1\',
    accessKeyI         


        

Answer 1

If your use case is to deliver single sms to individuals then you don't need to create a topic and delete it afterwards. It's possible to simply send one sms with the following code.

let AWS = require('aws-sdk');
const sns = new AWS.SNS();
exports.handler = function (event, context, callback) {
    var params = {
  Message: event.message, //  your message you would like to send
        MessageAttributes: {
            'AWS.SNS.SMS.SMSType': {
                DataType: 'String',
                StringValue: event.messageType // the smsType "Transactional" or "Promotional"
            },
            'AWS.SNS.SMS.SenderID': {
                DataType: 'String',
                StringValue: event.messageSender // your senderId - the message that will show up as the sender on the receiving phone
            },
        },
  PhoneNumber: event.phone // the phone number of the receiver 
};

sns.publish(params, function (err, data) {
        callback(null, {err: err, data: data});
        if (err) {
            console.log(err);
            context.fail(err);
        } else {
            console.log("Send sms successful to user:", event.phone);
            context.succeed(event);
            return;
        }
    });
};

the api endpoint/lambda receives the following body

{
"message": "hey ho I am the sms message.",
"messageType": "Transactional", //or "Promotional"
"messageSender": "Your Brand",
"phone":"+436640339333"
}