(Node.js) Create Zip in a BinData Object

Recursively appends files in a directory tree and writes a zip archive into a Chilkat BinData object.

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 zip = new chilkat.Zip();

    // Initialize the zip object.  Because we will never actually write a zip file to the filesystem,
    // the filepath passed to NewZip does not matter.
    var success = zip.NewZip("x.zip");
    if (success !== true) {
        console.log(zip.LastErrorText);
        return;
    }

    // Append a directory tree.  The call to AppendFiles does
    // not read the file contents or append them to the zip
    // object in memory.  It simply appends references
    // to the files so that when WriteBd, WriteZip, or WriteZipAndClose 
    // is called, the referenced files are streamed and compressed
    // into the .zip output file (or BinData object).

    var recurse = true;
    success = zip.AppendFiles("c:/temp/a/*",recurse);
    if (success !== true) {
        console.log(zip.LastErrorText);
        return;
    }

    // Write the zip archive into the bdZip object.
    var bdZip = new chilkat.BinData();
    success = zip.WriteBd(bdZip);
    if (success !== true) {
        console.log(zip.LastErrorText);
        return;
    }

    // We could directly access the bytes of the zip archive, or perhaps
    // get the zip bytes in base64 format.
    var zipAsBase64 = bdZip.GetEncoded("base64");
    console.log(zipAsBase64);

    // Or the zip can be used by some other Chilkat method call that accepts
    // a BinData object as an argument.

}

chilkatExample();