(JavaScript) Co:Z SFTP Binary File Download (from z/OS IBM Mainframe)

Demonstrates how to download a binary file, such as a .zip, from a Co:Z SFTP server on a z/OS IBM Mainframe.

Note: This example requires Chilkat v11.0.0 or greater.

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

var success = false;

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

var sftp = new CkSFtp();

// Connect to the SSH server.  
var hostname = "sftp.example.com";
var port = 22;
success = sftp.Connect(hostname,port);
if (success == false) {
    console.log(sftp.LastErrorText);
    return;
}

success = sftp.AuthenticatePw("myLogin","myPassword");
if (success == false) {
    console.log(sftp.LastErrorText);
    return;
}

success = sftp.InitializeSftp();
if (success == false) {
    console.log(sftp.LastErrorText);
    return;
}

// To download a binary file from the Co:Z SFTP server, 
// we must switch to binary mode in the following unconventional way.
// We pretend to fetch a directory listing for "/+mode=binary"
// This has the effect of putting the server in binary mode for transfers.
var handle = sftp.OpenDir("/+mode=binary");
if (sftp.LastMethodSuccess == false) {
    console.log(sftp.LastErrorText);
    return;
}

// Download the "directory listing" (but it's not actually a directory listing, and we'll just discard it.)

var dirListing = new CkSFtpDir();
success = sftp.ReadDirListing(handle,dirListing);
if (success == false) {
    console.log(sftp.LastErrorText);
    return;
}

// Close the directory handle:
success = sftp.CloseHandle(handle);
if (success == false) {
    console.log(sftp.LastErrorText);
    return;
}

// Download the binary file:
var localFilePath = "c:/temp/test.zip";
var remoteFilePath = "test.zip";
success = sftp.DownloadFileByName(remoteFilePath,localFilePath);
if (success == false) {
    console.log(sftp.LastErrorText);
    return;
}

console.log("Success.");