send email via sendgrid

sendgrid-send-email.js

const KEY = "SENDGRID KEY HERE";
const fs = require('fs');
const html = fs.readFileSync('./index-1.html', 'utf8');

var helper = require('sendgrid').mail;
var from_email = new helper.Email('e@slonoed.net');
var to_email = new helper.Email('guru.veronika@gmail.com');
var subject = 'Hello World from the SendGrid Node.js Library!';
var content = new helper.Content('text/html',html);
var mail = new helper.Mail(from_email, subject, to_email, content);
 
var sg = require('sendgrid')(KEY);
var request = sg.emptyRequest({
  method: 'POST',
  path: '/v3/mail/send',
  body: mail.toJSON(),
});
 
sg.API(request, function(error, response) {
  console.log(response.statusCode);
  console.log(response.body);
  console.log(response.headers);
});