(Node.js) Create Email with Non-Standard Binary Body

Creates an email where the only body is a binary WAV file. The technique used in the example could be applied to other binary files, such as PDF, MS-WORD docs, Excel docs, etc.

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();

    var success = mime.SetBodyFromFile("VoiceMessage.wav");
    if (success == false) {
        console.log(mime.LastErrorText);
        return;
    }

    // The MIME has this header:
    // Content-Disposition: attachment;
    // 	 filename="VoiceMessage.wav"
    // Content-Transfer-Encoding: base64
    // Content-Type: audio/x-wav;
    // 	name="VoiceMessage.wav"

    // We don't want the content-disposition to be an
    // attachment -- otherwise the email object will self-correct
    // and put it in a multipart/mixed format...
    mime.Disposition = "";
    mime.Filename = "";

    var strMime;
    strMime = mime.GetMime();
    console.log(strMime);

    // Now load it into an email object:
    var email = new chilkat.Email();
    success = email.SetFromMimeText(strMime);
    if (success == false) {
        console.log(email.LastErrorText);
        return;
    }

    // Add subject, TO, FROM, etc.
    email.Subject = "This is a test";
    email.From = "support@chilkatsoft.com";
    success = email.AddTo("Matt","matt@chilkatsoft.com");

    // Your email is ready to send.
    // (but for this example, we'll simply save it to a file...)
    success = email.SaveEml("email.eml");
    if (success == false) {
        console.log(email.LastErrorText);
        return;
    }

    console.log("OK!");

}

chilkatExample();