node.js Nodemailer array of objects to CSV file as attachment in email

Question

I'm sending an email in node.js using nodemailer module. I have an array of objects that I'm trying to turn into a CSV file and attach it to the email. I am able to successfully send an email, but the CSV attachment doesn't populate correctly (showing up as blank). My code looks similar to the following

var nodemailer = require('nodemailer');

// create reusable transporter object using SMTP transport
    var transporter = nodemailer.createTransport({
    service: 'Gmail',
    auth: {
        user: 'gmail.user@gmail.com',
        pass: 'userpass'
     }
});

var data = [{age:24,name:"bob"},{age:35,name:"andy"},...];

var mailOptions = {
    from: 'foo@blurdybloop.com', // sender address
    to: 'bar@blurdybloop.com', //receiver
    subject: 'Hello', // Subject line
    text: 'Hello world', // plaintext body
    html: '<b>Hello world</b>', // html body
    attachments: [{   
        filename: 'test.csv',
        content: data 
    }],
};

// send mail with defined transport object
transporter.sendMail(mailOptions, function(error, info){
    if(error){
        return console.log(error);
    }
    console.log('Message sent: ' + info.response);
});

I'm guessing it's not able to read the array of objects and only works for a string separated by commas?

Answer 1

You should to specify attach content property as a string.

NodeMailer couldn't convert formats itself. So you need to convert data into CSV before sending it. Use module like to-csv.