(Node.js) FTP Download Text File to a Stream

Demonstrates how to FTP download a text file to a Chilkat stream.

Note: This example requires Chilkat v9.5.0.67 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, 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 FTP2 API to have been previously unlocked.
    // See FTP2 Unlock Sample for sample code.

    var ftp = new chilkat.Ftp2();

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

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

    var streamObj = new chilkat.Stream();

    // Indicate the charset of the incoming data.
    streamObj.StringCharset = "utf-8";

    // Create a task to do the FTP download.
    // t: Task
    var t = ftp.GetFileToStreamAsync("lines.txt",streamObj);
    if (ftp.LastMethodSuccess !== true) {
        console.log(ftp.LastErrorText);
        return;
    }

    // Start the task in a background thread.
    t.Run();

    // Read the incoming text data using any of the streamObj Read methods.
    // This example will read line-by-line.
    var line;
    while (streamObj.EndOfStream !== true) {
        line = streamObj.ReadToCRLF();
        if (streamObj.LastMethodSuccess == true) {
            console.log(line);
        }

    }

    console.log("Success.");

}

chilkatExample();