(Node.js) Send HTML Email with Image Downloaded from URL

Demonstrates how to compose an HTML email with an embedded image where the image data is downloaded from a URL.

Install Chilkat for Node.js and Electron using npm at

Chilkat npm packages for Node.js
Chilkat npm packages for Electron
on Windows, Linux, MacOSX, and ARM

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node21-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node21-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node21-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node21-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node21-linux64');
    }
} else if (os.platform() == 'darwin') {
    if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node21-mac-m1');
    } else {
        var chilkat = require('@chilkat/ck-node21-macosx');
    }
}

function chilkatExample() {

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // First download the image we'll be adding to the HTML "img" tag.
    var bdJpg = new chilkat.BinData();
    var http = new chilkat.Http();
    var success = http.QuickGetBd("https://www.chilkatsoft.com/images/starfish.jpg",bdJpg);
    if (success == false) {
        console.log(http.LastErrorText);
        return;
    }

    var mailman = new chilkat.MailMan();

    // Use your SMTP server..
    mailman.SmtpHost = "smtp.yourserver.com";
    mailman.SmtpPort = 587;
    mailman.StartTLS = true;

    // Set the SMTP login/password
    mailman.SmtpUsername = "my_login";
    mailman.SmtpPassword = "my_password";

    // Create an HTML email.
    var email = new chilkat.Email();
    email.Subject = "HTML Email with Image";
    email.From = "Dave <somebody@mydomain.com>";
    email.AddTo("Chilkat","info@chilkatsoft.com");

    var html = "<html><body><p>This is an HTML email with an embedded image.</p><p><img src=\"starfish.jpg\" /></p></body></html>";
    email.SetHtmlBody(html);

    // Note: The "starfish.jpg" here must match the name in the "img" tag's "src" attribute in the HTML above.
    success = email.AddRelatedBd2(bdJpg,"starfish.jpg");
    if (success == false) {
        console.log(email.LastErrorText);
        return;
    }

    email.SaveEml("qa_output/out.eml");

    // success = mailman.SendEmail(email);
    // if (success == ckfalse) {
    //     println mailman.LastErrorText;
    //     return;
    // }
    // 
    // ignore = mailman.CloseSmtpConnection();

    console.log("Success.");

}

chilkatExample();