How to attach file to an email with nodemailer - node.js

Question

I have code that send email with nodemailer in nodejs but I want to attach file to an email but I can't find way to do that I search on net but I could't find something useful.Is there any way that I can attach files to with that or any resource that can help me to attach file with nodemailer?
var nodemailer = require('nodemailer');
var events = require('events');
var check =1;
var events = new events.EventEmitter();
var smtpTransport = nodemailer.createTransport("SMTP",{
service: "gmail",
auth: {
user: "example#gmail.com",
pass: "pass"
}
});
function inputmail(){
///////Email
const from = 'example<example#gmail.com>';
const to = 'example#yahoo.com';
const subject = 'example';
const text = 'example email';
const html = '<b>example email</b>';
var mailOption = {
from: from,
to: to,
subject: subject,
text: text,
html: html
}
return mailOption;
}
function send(){
smtpTransport.sendMail(inputmail(),function(err,success){
if(err){
events.emit('error', err);
}
if(success){
events.emit('success', success);
}
});
}
///////////////////////////////////
send();
events.on("error", function(err){
console.log("Mail not send");
if(check<10)
send();
check++;
});
events.on("success", function(success){
console.log("Mail send");
});

Answer 1

Include in the var mailOption the key attachments, as follow:
var mailOptions = {
...
attachments: [
{ // utf-8 string as an attachment
filename: 'text1.txt',
content: 'hello world!'
},
{ // binary buffer as an attachment
filename: 'text2.txt',
content: new Buffer('hello world!','utf-8')
},
{ // file on disk as an attachment
filename: 'text3.txt',
path: '/path/to/file.txt' // stream this file
},
{ // filename and content type is derived from path
path: '/path/to/file.txt'
},
{ // stream as an attachment
filename: 'text4.txt',
content: fs.createReadStream('file.txt')
},
{ // define custom content type for the attachment
filename: 'text.bin',
content: 'hello world!',
contentType: 'text/plain'
},
{ // use URL as an attachment
filename: 'license.txt',
path: 'https://raw.github.com/andris9/Nodemailer/master/LICENSE'
},
{ // encoded string as an attachment
filename: 'text1.txt',
content: 'aGVsbG8gd29ybGQh',
encoding: 'base64'
},
{ // data uri as an attachment
path: 'data:text/plain;base64,aGVsbG8gd29ybGQ='
}
]}
Choose the option that adjust to your needs.
Link:Nodemailer Repository GitHub
Good Luck!!

Answer 2

Your code is almost right, just need to add, "attachments" property for attaching the files in your mail,
YOUR mailOption:
var mailOption = {
from: from,
to: to,
subject: subject,
text: text,
html: html
}
Just add attachments like
var mailOption = {
from: from,
to: to,
subject: subject,
text: text,
html: html,
attachments: [{
filename: change with filename,
path: change with file path
}]
}
attachments also provide some other way to attach file for more information check nodemailer community's documentation HERE

Answer 3

If you are passing options object in mail composer constructor and attachment is on http server then it should look like:
const options = {
attachments = [
{ // use URL as an attachment
filename: 'xxx.jpg',
path: 'http:something.com/xxx.jpg'
}
]
}

Answer 4

var express = require('express');
var router = express(),
multer = require('multer'),
upload = multer(),
fs = require('fs'),
path = require('path');
nodemailer = require('nodemailer'),
directory = path.dirname("");
var parent = path.resolve(directory, '..');
// your path to store the files
var uploaddir = parent + (path.sep) + 'emailprj' + (path.sep) + 'public' + (path.sep) + 'images' + (path.sep);
/* GET home page. */
router.get('/', function(req, res) {
res.render('index.ejs', {
title: 'Express'
});
});
router.post('/sendemail', upload.any(), function(req, res) {
var file = req.files;
console.log(file[0].originalname)
fs.writeFile(uploaddir + file[0].originalname, file[0].buffer, function(err) {
//console.log("filewrited")
//console.log(err)
})
var filepath = path.join(uploaddir, file[0].originalname);
console.log(filepath)
//return false;
nodemailer.mail({
from: "yourgmail.com",
to: req.body.emailId, // list of receivers
subject: req.body.subject + " ✔", // Subject line
html: "<b>" + req.body.description + "</b>", // html body
attachments: [{
filename: file[0].originalname,
streamSource: fs.createReadStream(filepath)
}]
});
res.send("Email has been sent successfully");
})
module.exports = router;

Answer 5

attachments: [
{
filename: "inovices_1.pdf", // the file name
path: "https://*************************/invoice/10_9_RMKUns.pdf",// link your file
contentType: "application/pdf", //type of file
},
{
filename: "inovices_2.pdf",
path: "https://**************************/invoice/10_9_RMKUns.pdf",
contentType: "application/pdf",
},
];
var nodemailer = require("nodemailer");
var all_transporter = nodemailer.createTransport({
host: process.env.MAIL_SERVICE,
port: 587,
auth: {
user: process.env.MAIL_USER,
pass: process.env.MAIL_PASS,
},
maxConnections: 3,
pool: true,
});
exports.send_email = function (email, subject, html, extra_cc = [], attachments = []) {
return new Promise(async (resolve, reject) => {
var mailOptions = {
from: process.env.MAIL_FROM_ADDRESS,
to: email,
subject: subject,
html: html,
cc: [],
};
mailOptions["cc"] = mailOptions["cc"].concat(extra_cc);
if (attachments.length > 0) mailOptions["attachments"] = attachments;
all_transporter.sendMail(mailOptions, function (error, info) {
// console.log(error);
// console.log(info);
if (error) {
resolve({ failed: true, err: error });
} else {
resolve({ failed: false, data: info.response });
}
});
});
};

Answer 6

The alternative solution is to host your images online using a CDN and link to the online image source in your HTML, eg. <img src="list_image_url_here">.
(I had problems with nodemailer's image embedding using nodemailer version 2.6.0, which is why I figured out this workaround.)
An added benefit of this solution is that you're sending no attachments to nodemailer, so the sending process is more streamlined.

Answer 7

var mailer = require('nodemailer');
mailer.SMTP = {
host: 'host.com',
port:587,
use_authentication: true,
user: 'you#example.com',
pass: 'xxxxxx'
};
Then read a file and send an email :
fs.readFile("./attachment.txt", function (err, data) {
mailer.send_mail({
sender: 'sender#sender.com',
to: 'dest#dest.com',
subject: 'Attachment!',
body: 'mail content...',
attachments: [{'filename': 'attachment.txt', 'content': data}]
}), function(err, success) {
if (err) {
// Handle error
}
}
});

Answer 8

Just look at here. Nodemailer > Message configuration > Attachments
The code snippet is below (pdfkit gets the stream):
// in async func
pdf.end();
const stream = pdf;
const attachments = [{ filename: 'fromFile.pdf', path: './output.pdf',
contentType: 'application/pdf' }, { filename: 'fromStream.pdf', content: stream, contentType: 'application/pdf' }];
await sendMail('"Sender" <sender#test.com>', 'reciver#test.com', 'Test Send Files', '<h1>Hello</h1>', attachments);
Stream uses content not streamSource This bothered me before, share with everyone :)

Answer 9

Reference = https://nodemailer.com/message/attachments/
var mailOption = {
from: from,
to: to,
subject: subject,
text: text,
html: html,
attachments: [
{
filename: filename,
path: filePath
},
]
}