(Ruby) 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.

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

# This example assumes the Chilkat FTP2 API to have been previously unlocked.
# See FTP2 Unlock Sample for sample code.

ftp = Chilkat::CkFtp2.new()

ftp.put_Hostname("www.my-ftp-server.com")
ftp.put_Username("mFtpLogin")
ftp.put_Password("myFtpPassword")
ftp.put_AuthTls(true)
ftp.put_Passive(true)

# Connect and login to the FTP server using TLS.
success = ftp.Connect()
if (success != true)
    print ftp.lastErrorText() + "\n";
    exit
end

streamObj = Chilkat::CkStream.new()

# Indicate the charset of the incoming data.
streamObj.put_StringCharset("utf-8")

# Create a task to do the FTP download.
# t is a CkTask
t = ftp.GetFileToStreamAsync("lines.txt",streamObj)
if (ftp.get_LastMethodSuccess() != true)
    print ftp.lastErrorText() + "\n";
    exit
end

# 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.

while streamObj.get_EndOfStream() != true
    line = streamObj.readToCRLF()
    if (streamObj.get_LastMethodSuccess() == true)
        print line + "\n";
    end

end

print "Success." + "\n";