DataFlex

Download a File from an SFTP Server

Demonstrates the Chilkat SFtp.DownloadFileByName method, which downloads a remote file to a local path in a single call. The first argument is the remote file path and the second is the local file path.

Note: This example uses relative local paths, which are resolved against the application's current working directory. Absolute local paths may also be used. Supply the paths appropriate to your own environment.

Background: The download counterpart to UploadFileByName: it opens, streams, and closes the remote file in one call, without a memory limit on the transfer size. When PreserveDate is set, the remote file's last-modified time is applied to the local copy, which matters for incremental-sync logic that compares timestamps.

Chilkat DataFlex Downloads

Download Chilkat for DataFlex

DataFlex

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoSftp
    Integer iPort
    String sPassword
    String sTemp1

    Move False To iSuccess

    //  Demonstrates the SFtp.DownloadFileByName method, which downloads a remote file to a local path
    //  in one call.  The 1st argument is the remote file path and the 2nd is the local file path.

    Get Create (RefClass(cComChilkatSFtp)) To hoSftp
    If (Not(IsComObjectCreated(hoSftp))) Begin
        Send CreateComObject of hoSftp
    End

    //  Connect, authenticate, and initialize the SFTP subsystem.
    Move 22 To iPort
    Get ComConnect Of hoSftp "sftp.example.com" iPort To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoSftp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    //  Normally you would not hard-code the password in source.  You should instead obtain it
    //  from an interactive prompt, environment variable, or a secrets vault.
    Move "mySshPassword" To sPassword

    Get ComAuthenticatePw Of hoSftp "mySshLogin" sPassword To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoSftp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get ComInitializeSftp Of hoSftp To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoSftp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    //  Download a remote file to the local filesystem.
    Get ComDownloadFileByName Of hoSftp "subdir/report.pdf" "qa_output/report.pdf" To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoSftp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Showln "Downloaded."

    Send ComDisconnect To hoSftp


End_Procedure