(Node.js) Iterate over Matching Filenames

Iterates over files within a .zip that match a pattern. In this case, the pattern is "*.pem". This example will open a .zip containing files of type .txt, .cer, .pem, and possibly others, and will iterate over only the .pem 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 requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    var zip = new chilkat.Zip();

    // Open a .zip containing PEM files, among other things..
    var success = zip.OpenZip("qa_data/certs/thawte-roots.zip");
    if (success !== true) {
        console.log(zip.LastErrorText);
        return;
    }

    // entry: ZipEntry
    var entry = zip.FirstMatchingEntry("*.pem");
    if (zip.LastMethodSuccess !== true) {
        console.log("No PEM entries found.");
        return;
    }

    // nextEntry: ZipEntry
    var nextEntry;
    var pemStr;

    var bContinue = true;
    while ((bContinue == true)) {

        console.log("Entry: " + entry.FileName);

        // Get the uncommpressed contents of the entry:
        pemStr = entry.UnzipToString(0,"utf-8");
        console.log(pemStr);

        nextEntry = entry.NextMatchingEntry("*.pem");
        bContinue = entry.LastMethodSuccess;

        entry = nextEntry;
    }


}

chilkatExample();