(Node.js) SMTP XOAUTH2 Authentication

Demonstrates how to authenticate using an OAuth2 access token. This example assumes you have already obtained the access token and now wish to use it in an SMTP session.

Install Chilkat for Node.js and Electron using npm at Chilkat npm packages for Node.js Chilkat npm packages for Electron on Windows, Linux, MacOS

var os = require('os');
if (os.platform() == 'win32') {  
  var chilkat = require('@chilkat/ck-node23-win64'); 
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node23-linux-arm');
    } else if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node23-linux-arm64');
    } else {
        var chilkat = require('@chilkat/ck-node23-linux-x64');
    }
} else if (os.platform() == 'darwin') {
  var chilkat = require('@chilkat/ck-node23-mac-universal');
}

function chilkatExample() {

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

    var success;
    var oauth2_access_token = "some_previously_obtained_token";

    var mailman = new chilkat.MailMan();

    // Set the properties for the SMTP server, whatever they may be..
    mailman.SmtpHost = "smtp.example.com";
    mailman.SmtpPort = 587;
    mailman.StartTLS = true;

    mailman.SmtpUsername = "myLogin";
    mailman.OAuth2AccessToken = oauth2_access_token;

    // Create a new email object
    var email = new chilkat.Email();

    email.Subject = "This is a test";
    email.Body = "This is a test";
    email.From = "Joe Example <joe@example.com>";
    email.AddTo("Chilkat Admin","admin@chilkatsoft.com");

    // Connect to the server indicated by the SmtpHost property
    success = mailman.SmtpConnect();
    if (success !== true) {
        console.log(mailman.LastErrorText);
        return;
    }

    // Authenticate using XOAUTH2 (using the OAuth2AccessToken)
    success = mailman.SmtpAuthenticate();
    if (success !== true) {
        console.log(mailman.LastErrorText);
        return;
    }

    success = mailman.SendEmail(email);
    if (success !== true) {
        console.log(mailman.LastErrorText);
        return;
    }

    console.log("Email sent.");

    mailman.CloseSmtpConnection();

}

chilkatExample();