mail.js

/* eslint no-console: 0*/
"use strict";

const nodemailer = require("nodemailer");
const nodemailerSendgrid = require("../index"); // require('@newesissrl/nodemailer-sendgrid');
const transport = nodemailer.createTransport(
  nodemailerSendgrid({
    apiKey: process.env.SENDGRID_API_KEY,
  })
);

transport
  .sendMail({
    from: "alberto@newesis.com",
    to: "Rauno De Pasquale <rauno@newesis.com>",
    subject: "hello world",
    html: "<h1>Hello world!</h1>",
  })
  .then(([res]) => {
    console.log(
      "Message delivered with code %s %s",
      res.statusCode,
      res.statusMessage
    );
  })
  .catch((err) => {
    console.log("Errors occurred, failed to deliver message");

    if (err.response && err.response.body && err.response.body.errors) {
      err.response.body.errors.forEach((error) =>
        console.log("%s: %s", error.field, error.message)
      );
    } else {
      console.log(err);
    }
  });