(Node.js) Unpack MHT to Files

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Demonstrates how to unpack a .mhtml to files. Unpacks the HTML and to a directory, and image files to a sub-directory located under the directory where the HTML file is unpacked. The image links in the HTML are updated to point to the image files.

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

    var mht = new chilkat.Mht();

    // This should be an absolute or relative path to the MHT file.
    // It is the MHT to be unpacked.
    var mhtPath = "qa_data/mht/test.mht";

    var unpackDir = "C:/AAWorkarea/mht_unpack";
    var htmlFilename = "test.html";
    var partsSubDir = "images";

    // Unpacking will create the HTML file C:/AAWorkarea/mht_unpack/test.html
    // The image files are unpacked to C:/AAWorkarea/mht_unpack/images
    // The unpackDir and partsSubDir are automatically created if needed.

    var success = mht.UnpackMHT(mhtPath,unpackDir,htmlFilename,partsSubDir);
    if (success == false) {
        console.log(mht.LastErrorText);
        console.log("Failed.");
    }
    else {
        console.log("Success.");
    }


}

chilkatExample();