(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.

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() {

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

    var zip = new chilkat.Zip();

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

    // Get the 1st file in the .zip
    // entry: ZipEntry
    var entry = zip.GetEntryByIndex(0);
    if (zip.LastMethodSuccess !== true) {
        console.log("No files in this zip.");
        return;
    }

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


}

chilkatExample();