(Swift 3,4,5...) Download Text File into String Variable

Download a text file directly into a string variable.

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

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

    let ftp = CkoFtp2()!

    ftp.hostname = "ftp.someFtpServer.com"
    ftp.username = "myFtpUserAccount"
    ftp.password = "myFtpPassword"

    // Set other possible settings...
    // See http://www.cknotes.com/determining-ftp2-connection-settings/ 
    // for more information about FTP connection settings.
    ftp.passive = true
    ftp.authTls = true

    // Connect and login to the FTP server.
    var success: Bool = ftp.connect()
    if success != true {
        print("\(ftp.lastErrorText!)")
        return
    }

    // Change to the remote directory where the existing file is located.
    success = ftp.changeRemoteDir("junk")
    if success != true {
        print("\(ftp.lastErrorText!)")
        return
    }

    // Download the contents of the remote file into a string variable.

    // The GetRemoteFileTextData method assumes the remote file contains ANSI chars.
    // To download text files containing non-ANSI text, such as utf-8, call GetRemoteFileTextC
    // instead. (see below)
    var fileContents: String? = ftp.getRemoteFileTextData("ansiText.txt")
    if ftp.lastMethodSuccess != true {
        print("\(ftp.lastErrorText!)")
        return
    }
    else {
        print("\(fileContents!)")
    }

    // To download a remote text file containing utf-8 chars, 
    // call GetRemoteFileTextC and pass "utf-8" for the 2nd arg.  This tells
    // Chilkat to interpret the incoming bytes according to the utf-8 character encoding.

    fileContents = ftp.getRemoteFileTextC("utf8Text.txt", charset: "utf-8")
    if ftp.lastMethodSuccess != true {
        print("\(ftp.lastErrorText!)")
        return
    }
    else {
        print("\(fileContents!)")
    }

    success = ftp.disconnect()

}