examples/transmissions/send_mime_parts.js

'use strict';

var key = 'YOURAPIKEY'
  , SparkPost = require('sparkpost')
  , client = new SparkPost(key)
  , transmission = {
    recipients: [{ address: { email: 'john.doe@example.com' } }],
    content: {
      from: 'From Envelope <from@example.com>',
      subject: 'Example Email for MIME Parts',
      html: '<html><body><p>Hello World!</p></body></html>',
      text: 'Hello World!'
    },
    options: {
      open_tracking: true,
      click_tracking: true
    }
  };

// Promise
client.transmissions.send(transmission)
  .then(data => {
    console.log('Congrats you can use our client library!');
    console.log(data);
  })
  .catch(err => {
    console.log('Whoops! Something went wrong');
    console.log(err);
  });

// Callback
client.transmissions.send(transmission, function(err, data) {
  if (err) {
    console.log('Whoops! Something went wrong');
    console.log(err);
  } else {
    console.log('Congrats you can use our client library!');
    console.log(data);
  }
});