Visual FoxPro

Restart/Resume FTP Upload

See more FTP Examples

Demonstrates how to restart / resume an FTP upload. Visual FoxPro

LOCAL lnSuccess
LOCAL loFtp
LOCAL lcLocalFilename
LOCAL lcRemoteFilename

lnSuccess = 0

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

loFtp = CreateObject('Chilkat.Ftp2')

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

*  Connect and login to the FTP server.
lnSuccess = loFtp.Connect()
IF (lnSuccess <> 1) THEN
    ? loFtp.LastErrorText
    RELEASE loFtp
    CANCEL
ENDIF

*  Change to the remote directory where the file will be uploaded.
lnSuccess = loFtp.ChangeRemoteDir("temp")
IF (lnSuccess <> 1) THEN
    ? loFtp.LastErrorText
    RELEASE loFtp
    CANCEL
ENDIF

*  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.
loFtp.RestartNext = 1

*  Upload a file with restart.
lcLocalFilename = "bigFile.zip"
lcRemoteFilename = "bigFile.zip"

lnSuccess = loFtp.PutFile(lcLocalFilename,lcRemoteFilename)
IF (lnSuccess <> 1) THEN
    ? loFtp.LastErrorText
    RELEASE loFtp
    CANCEL
ENDIF

lnSuccess = loFtp.Disconnect()

? "File Uploaded!"

RELEASE loFtp