(Node.js) Create MIME Containing HTML

Calls SetBodyFromHtml to load HTML into the MIME body. Also sets the Content-Type header to "text/html", and the Content-Transfer-Encoding to an appropriate transfer encoding based on the characters found in the HTML.

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.

    var mime = new chilkat.Mime();

    // Add a few header fields:
    var success = mime.AddHeaderField("Description","this is a test");
    success = mime.AddHeaderField("MyId","123");

    var htmlDoc = "<html><body>Test</body></html>";

    // Set the MIME body via SetBodyFromHtml.  This also
    // has the intended side-effect of adding the Content-Type
    // and Content-Transfer-Encoding headers.
    success = mime.SetBodyFromHtml(htmlDoc);

    console.log(mime.GetMime());

    // The MIME should look like this:

    // Description: this is a test
    // MyId: 123
    // Content-Type: text/html; 
    // Content-Transfer-Encoding: 7bit
    // 
    // <html><body>Test</body></html>

    // Note: The Content-Transfer-Encoding may be changed.
    // For example, to use "base64", do this:
    mime.Encoding = "base64";

    // Show the MIME again, this time using the base64 
    // transfer encoding:
    console.log(mime.GetMime());

    // It should look like this:

    // Description: this is a test
    // MyId: 123
    // Content-Type: text/html; 
    // Content-Transfer-Encoding: base64
    // 
    // PGh0bWw+PGJvZHk+VGVzdDwvYm9keT48L2h0bWw+

}

chilkatExample();