Node.js

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

See more SFTP Examples

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

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

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

    var sftp = new chilkat.SFtp();

    //  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 chilkat.SFtpDir();
    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.");

}

chilkatExample();