(Node.js) Unzip all Files to a Single Directory (Ignoring Subdirectories in Zip)

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Demonstrates how to unzip all files into a single directory, ignoring the internal directory structure of the files in the .zip.

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 outDir = "c:/temp/testUnzipDir";

    // Make sure our output directory exists.
    var fac = new chilkat.FileAccess();
    var success = fac.DirEnsureExists(outDir);
    if (success == false) {
        console.log(fac.LastErrorText);
        return;
    }

    var zip = new chilkat.Zip();

    // In this example, the xml_files.zip contains some files in the subdirectories "dir1" and also "dir2/dir3".

    // a1.xml
    // b1.xml
    // c1.xml
    // dir1/a2.xml
    // dir1/c2.xml
    // dir2/dir3/c3.xml

    success = zip.OpenZip("qa_data/zips/xml_files.zip");
    if (success !== true) {
        console.log(zip.LastErrorText);
        return;
    }

    // Unzip all files into the directory c:/temp/testUnzipDir
    var numUnzipped = zip.UnzipInto(outDir);
    if (numUnzipped < 0) {
        console.log(zip.LastErrorText);
        return;
    }

    console.log("Num unzipped = " + numUnzipped);

    // After unzipping via UnzipInto, we have this:

    // c:\temp\testUnzipDir\a1.xml
    // c:\temp\testUnzipDir\b1.xml
    // c:\temp\testUnzipDir\c1.xml
    // c:\temp\testUnzipDir\a2.xml
    // c:\temp\testUnzipDir\c2.xml
    // c:\temp\testUnzipDir\c3.xml

    zip.CloseZip();

    console.log("Success.");

}

chilkatExample();