(Node.js) Setting the MIME Text Charset (such as utf-8, iso-8859-1, etc.)

Demonstrates how setting the Charset property controls the character encoding used for the text body in a MIME message.

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

    var mime = new chilkat.Mime();

    // Set the MIME body using some 8bit non-us-ascii characters:
    mime.SetBody("á, é, í, ó, ú");

    // Set the Content-Type
    mime.ContentType = "text/plain";

    // Set the Content-Transfer-Encoding to "quoted-printable"
    // so it's easy to see the bytes used to encode each character
    // (i.e. it will be easy to see that utf-8 uses 2-bytes for 
    // non-us-ascii characters such as "á", whereas a character
    // encoding such as iso-8859-1 will use one byte per character.
    mime.Encoding = "quoted-printable";

    // Set the Charset to utf-8
    mime.Charset = "utf-8";

    // Examine the MIME:
    console.log(mime.GetMime());

    // The MIME should look like this:

    // Content-Transfer-Encoding: quoted-printable
    // Content-Type: text/plain; charset="utf-8"
    // 
    // =C3=A1, =C3=A9, =C3=AD, =C3=B3, =C3=BA

    // Now change the Charset to "iso-8859-1"
    mime.Charset = "iso-8859-1";

    // Get the MIME again...
    console.log(mime.GetMime());

    // Now the MIME should look like this:

    // Content-Transfer-Encoding: quoted-printable
    // Content-Type: text/plain; charset="iso-8859-1"
    // 
    // =E1, =E9, =ED, =F3, =FA

}

chilkatExample();