(Node.js) Unzip Text File to String

Demonstrates how to open a .zip and extract the 1st file (assuming it's a text file) to a string variable.

Note: This example requires Chilkat v11.0.0 or greater.

Install Chilkat for Node.js and Electron using npm at Chilkat npm packages for Node.js Chilkat npm packages for Electron on Windows, Linux, MacOS

var os = require('os');
if (os.platform() == 'win32') {  
  var chilkat = require('@chilkat/ck-node23-win64'); 
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node23-linux-arm');
    } else if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node23-linux-arm64');
    } else {
        var chilkat = require('@chilkat/ck-node23-linux-x64');
    }
} else if (os.platform() == 'darwin') {
  var chilkat = require('@chilkat/ck-node23-mac-universal');
}

function chilkatExample() {

    var success = false;

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

    var zip = new chilkat.Zip();

    success = zip.OpenZip("qa_data/zips/EC16100.zip");
    if (success == false) {
        console.log(zip.LastErrorText);
        return;
    }

    // Get the 1st file in the .zip
    var entry = new chilkat.ZipEntry();
    success = zip.EntryAt(0,entry);
    if (success == false) {
        console.log(zip.LastErrorText);
        return;
    }

    var fileContents = entry.UnzipToString(0,"utf-8");
    console.log(fileContents);

}

chilkatExample();