(Node.js) FTP Upload / Download to StringBuilder

Demonstrate how to upload from a Chilkat StringBuilder object, and download into a StringBuilder 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 Chilkat Ftp2 to have been previously unlocked.
    // See Unlock Ftp2 for sample code.

    var ftp = new chilkat.Ftp2();

    ftp.Hostname = "www.my-ftp-server.com";
    ftp.Username = "mFtpLogin";
    ftp.Password = "myFtpPassword";

    // Connect to the FTP server.
    var success = ftp.ConnectOnly();
    if (success !== true) {
        console.log(ftp.LastErrorText);
        return;
    }

    // Authenticate with the FTP server.
    success = ftp.LoginAfterConnectOnly();
    if (success !== true) {
        console.log(ftp.LastErrorText);
        return;
    }

    var sbA = new chilkat.StringBuilder();
    sbA.LoadFile("qa_data/hamlet.xml","utf-8");

    // Upload the contents of sbA to the FTP server.
    var bIncludeBOM = false;
    var remoteFilename = "hamletFromSb.xml";
    success = ftp.PutFileSb(sbA,"utf-8",bIncludeBOM,remoteFilename);
    if (success !== true) {
        console.log(ftp.LastErrorText);
        return;
    }

    // Download...
    var sbB = new chilkat.StringBuilder();
    success = ftp.GetFileSb(remoteFilename,"utf-8",sbB);
    if (success !== true) {
        console.log(ftp.LastErrorText);
        return;
    }

    // Verify that sbA and sbB have the exact same contents.
    console.log("size of sbA: " + sbA.Length);
    var bCaseSensitive = true;
    if (sbA.ContentsEqualSb(sbB,bCaseSensitive) == true) {
        console.log("Contents are equal. Success.");
    }
    else {
        console.log("Contents are NOT equal.  Failed.");
    }

    ftp.Disconnect();

}

chilkatExample();