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javascriptnode.jstypescriptnodemailer

Nodemailer attachments are empty

I'm trying to attach some files to the email I'm sending via NodeMailer. Checking the sent email, the attached files are empty (i.e. 0 bytes). If I download the attachments, I end up with empty text files. What am I missing?

Here is my code:

 const nodemailer = require('nodemailer')

 const lessSecureAuth = {
  user: "sender@email.com",
  pass: "password123"
 }
 const transporter = nodemailer.createTransport({
    service: 'gmail',
    auth: lessSecureAuth
 });

 const mailOptions = {
      from: 'sender@email.com',
      to: 'recipient@email.com',
      subject: 'Email Subject',
      html: `
          <h3>Hello World!</h3>
          <p>
              the quick brown fox jumps over the lazy dog
          </p>
      `,
      attachments: [
        {
          filename: 'attachFileTest.docx',
          filePath: '../uploads/attachFileTest.docx',
          contentType: 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
        },
        {
          filename: 'attachFileTest.pdf',
          filePath: '../uploads/attachFileTest.pdf',
          contentType: 'application/pdf'
        },
        {
          filename: 'attachImageTest.png',
          filePath: '../uploads/attachImageTest.png',
          contentType: 'image/png'
        }
      ]
  };

  transporter.sendMail(mailOptions, function(error, info){
    if (error) {
      console.log("[ ERR ]", error);
    } else {
      console.log('Email sent: ' + info.response);
    }
  });

NodeJS: v12.16.1

nodemailer: v6.6.0

Edit#1

As suggested by @Apoorva Chikara enter image description here

Solution

  • After doing some digging in the docs and other stackoverflow posts, I found the answer:

    Using the absolute path instead of a relative path to the file to be attached, along with using the attachment.path property instead of the attachment.filePath property did the trick.

    Basically, changing this:

     {
   filename: 'attachFileTest.pdf',
   filePath: '../uploads/attachFileTest.pdf',
   contentType: 'application/pdf'
 },

    to this:

     {
  path: __dirname + '/../uploads/attachFileTest.pdf' // string concatination
  // path: `${__dirname}/../uploads/attachFileTest.pdf` // or string interpolation (ES6)
 }

    Both attachment.filename and attachment.contentType are unnecessary in this case, since according to the docs:

    { // filename and content type is derived from path
  path: '/path/to/file.txt'
}