(Xojo Plugin) Restart/Resume FTP Upload

Demonstrates how to restart / resume an FTP upload.

Chilkat Xojo Plugin Download Xojo Plugin for Windows, Linux, Mac OS X, and ARM, ARM64

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

Dim ftp As New Chilkat.Ftp2

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

// Connect and login to the FTP server.
Dim success As Boolean
success = ftp.Connect()
If (success <> True) Then
    System.DebugLog(ftp.LastErrorText)
    Return
End If

// Change to the remote directory where the file will be uploaded.
success = ftp.ChangeRemoteDir("temp")
If (success <> True) Then
    System.DebugLog(ftp.LastErrorText)
    Return
End If

// 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.
Dim localFilename As String
localFilename = "bigFile.zip"
Dim remoteFilename As String
remoteFilename = "bigFile.zip"

success = ftp.PutFile(localFilename,remoteFilename)
If (success <> True) Then
    System.DebugLog(ftp.LastErrorText)
    Return
End If

success = ftp.Disconnect()

System.DebugLog("File Uploaded!")