(JavaScript) SFTP Upload from Local Filesystem

Demonstrates how to upload a file to an SSH server. There are no limitations on file size, and the file is streamed directly from the local filesystem.

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

var sftp = new CkSFtp();

// Set some timeouts, in milliseconds:
sftp.ConnectTimeoutMs = 5000;
sftp.IdleTimeoutMs = 10000;

// Connect to the SSH server.  
// The standard SSH port = 22
// The hostname may be a hostname or IP address.
var hostname = "sftp.example.com";
var port = 22;
success = sftp.Connect(hostname,port);
if (success !== true) {
    console.log(sftp.LastErrorText);
    return;
}

// Authenticate with the SSH server.  Chilkat SFTP supports
// both password-based authenication as well as public-key
// authentication.  This example uses password authenication.
success = sftp.AuthenticatePw("myLogin","myPassword");
if (success !== true) {
    console.log(sftp.LastErrorText);
    return;
}

// After authenticating, the SFTP subsystem must be initialized:
success = sftp.InitializeSftp();
if (success !== true) {
    console.log(sftp.LastErrorText);
    return;
}

// Open a file for writing on the SSH server.
// If the file already exists, it is overwritten.
// (Specify "createNew" instead of "createTruncate" to
// prevent overwriting existing files.)
var handle = sftp.OpenFile("hamlet.xml","writeOnly","createTruncate");
if (sftp.LastMethodSuccess !== true) {
    console.log(sftp.LastErrorText);
    return;
}

// Upload from the local file to the SSH server.
success = sftp.UploadFile(handle,"c:/temp/hamlet.xml");
if (success !== true) {
    console.log(sftp.LastErrorText);
    return;
}

// -----------------------------------------------------------------------------
// This is important.  You must close the handle on the server.
// Otherwise open handles will accumulate on the server until eventually a limit
// is reached and the server will fail on a call to OpenFile.
// -----------------------------------------------------------------------------

// Close the file.
success = sftp.CloseHandle(handle);
if (success !== true) {
    console.log(sftp.LastErrorText);
    return;
}

console.log("Success.");