Quick Stellar scripting – Payment Mailer

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var StellarSdk = require('stellar-sdk')

var nodemailer = require('nodemailer');

// Remove "-testnet" if you wanna work in the real world

var server = new StellarSdk.Server('https://horizon-testnet.stellar.org');



var accountId = 'your Public Key goes here'; //testnet



//Config Your Smtp-Server

let smtpConfig = {

  host: 'your smtp-server',

  port: 587,

  secure: false, // upgrade later with STARTTLS

  auth: {

    user: 'your smtp user',

    pass: 'your smtp password'

  }

};

let transporter = nodemailer.createTransport(smtpConfig)





// // you can use this code to 

// // verify connection configuration

// transporter.verify(function(error, success) {

//   if (error) {

//        console.log(error);

//   } else {

//        console.log('Server is ready to take our messages');

//   }

// });



// Get a message any time a payment occurs.

var es = server.payments()

  .forAccount(accountId)

  .cursor('now')

  .stream({

    onmessage: function (message) {



      var transactionID = message.transaction_hash;

      var memo = "";

      var mailtext = "";

      //only send e-mail if it is a real payment

      if (message.amount > 0) {

        //get the transaction your paymet is in to pull the memo text if any

        server.transactions()

          .transaction(transactionID)

          .call()

          .then(function (transactionResult) {

            memo = transactionResult.memo;



          })

          .then(function () {

            var code = "xlm";

            if (message.asset_type != "native")

              code = message.asset_code;



            //now we got all we need to build the MailBody.

            // Format it as you like it or include other informations

            var mailtext = "you received\n";

            mailtext = mailtext + message.amount + " " + code + "\n";

            mailtext = mailtext + "from " + message.source_account + "\n";

            mailtext = mailtext + "MEMO " + memo; +"\n";

            console.log(mailtext);



            //send email

            var mailOptions = {

              from: 'sender-mail-address',

              to: 'received-mail-address',

              subject: 'you received a payment',

              text: mailtext

            };



            transporter.sendMail(mailOptions, function (error, info) {

              if (error) {

                console.log(error);

              } else {

                console.log('Email sent: ' + info.response);

              }

            });

          })

          .catch(function (err) {

            console.log(err)

          })



      }

    }

  })