Send emails using nodemailer

common.js

import fs from 'fs'

const $app = process.env.APP_PATH
const $src = process.env.SRC_PATH

export function view(path) {
	
	const file = `${$app}/views/${path}.pug`
	
	if (fs.existsSync(file)) {
		return  file
	}

	else {
		const error = new Error("Not Found")
		error.message = "View not found"
		throw error
	}

}

mailer.js

import mailer from 'nodemailer'
import pug from 'pug'
import {view} from 'helper/common'

export default async function send(options) {

	try {

		const html = options.view ? pug.renderFile(view(options.view), options.data || {}) : (options.html || "")				
		
		const transport = mailer.createTransport({
			host: process.env.MAIL_HOST,
			port: process.env.MAIL_PORT,
			auth: {
				user: process.env.MAIL_USER,
				pass: process.env.MAIL_PASS
			}
		})

		let mailOptions = {
			//from: `"${process.env.MAIL_FROM_NAME}" <${process.env.MAIL_FROM_MAIL}>`,
			from: options.from || process.env.MAIL_FROM_MAIL || `noreply@${process.env.APP_HOST}`,
			to: options.to.toString() || process.env.MAIL_FROM_MAIL,
			subject: options.subject || "",
			text: options.text || "",
			html
		}

		return await transport.sendMail(mailOptions)

	}
	
	catch(error) {
		throw error
	}
	
	
}

const message = 'Hello world'
send({
	from: "Fernando Dorantes <fernando@dorant.es>",
	to: ["John Doe <doe@email.com>"],
	subject: "Testing mail using nodemailer",
	view: "email/testing",
	text: message,
	data: {
		message
	}
})
.then(info => console.log(info))
.catch(console.error)