Rust

Restart/Resume FTP Download

See more FTP Examples

Resume downloading a file from an FTP server. Rust

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

let ftp = chilkat::Ftp2::new();

ftp.set_hostname("ftp.example.com");
ftp.set_username("login");
ftp.set_password("password");

// Connect and login to the FTP server.
if ftp.connect().is_err() {
    println!("{}", ftp.last_error_text());
    return;
}

// Change to the remote directory where the file is located.
// This step is only necessary if the file is not in the root directory
// for the FTP account.
if ftp.change_remote_dir("temp").is_err() {
    println!("{}", ftp.last_error_text());
    return;
}

// To resume a download, it is assumed that the partial file
// is already present on the local filesystem.
// You only need to set the RestartNext property to resume
// the download.  The Chilkat FTP component sets the resume
// point by getting the existing size of the target (local) file.
ftp.set_restart_next(true);

let local_filename = "big.zip".to_string();
let remote_filename = "big.zip".to_string();

// Resume downloading...
if ftp.get_file(&remote_filename, &local_filename).is_err() {
    println!("{}", ftp.last_error_text());
    return;
}

let _ = ftp.disconnect().is_ok();

println!("File Downloaded!");