Node.js

Restart/Resume FTP Upload

See more FTP Examples

Demonstrates how to restart / resume an FTP upload. 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 ftp = new chilkat.Ftp2();

    ftp.Hostname = "ftp.example.com";
    ftp.Username = "login";
    ftp.Password = "password";

    //  Connect and login to the FTP server.
    success = ftp.Connect();
    if (success !== true) {
        console.log(ftp.LastErrorText);
        return;
    }

    //  Change to the remote directory where the file will be uploaded.
    success = ftp.ChangeRemoteDir("temp");
    if (success !== true) {
        console.log(ftp.LastErrorText);
        return;
    }

    //  In this example, assume that a previous FTP upload failed,
    //  and the incomplete file (bigFile.zip) exists on the FTP server.
    //  You only need to set the RestartNext property to resume
    //  the upload.  When RestartNext is set, the next call
    //  to PutFile (or PutFileFromBinaryData, PutFileFromTextData)
    //  will automatically resume the upload from the point of failure.
    //  (The way it works is that the FTP component sends a "SIZE";
    //  command to the FTP server to find out how many bytes of
    //  the file already exist on the server.  It then begins
    //  uploading from that point.

    //  Note: After PutFile is called, the RestartNext property
    //  is automatically set to false.
    ftp.RestartNext = true;

    //  Upload a file with restart.
    var localFilename = "bigFile.zip";
    var remoteFilename = "bigFile.zip";

    success = ftp.PutFile(localFilename,remoteFilename);
    if (success !== true) {
        console.log(ftp.LastErrorText);
        return;
    }

    success = ftp.Disconnect();

    console.log("File Uploaded!");

}

chilkatExample();