[AccessD] Transfer complete?

Gustav Brock Gustav at cactus.dk
Thu Mar 10 11:58:01 CST 2005


Hi John

First, I will recommend using a package for this purpose like 3D-FTP:

  http://www.3dftp.com 

and the SDK:

  http://www.3dftp.com/api.htm

It's only USD 40 and it will save you a lot of trouble. With this you
can automate the whole thing using events and methods for all sort of
things. Further it runs very fast if you have to transfer multiple files
and it adds a status window so the user or operator is not lost during
long transfers.
We have it running at a client uploading batches of more than 1000
files a time and it has run without any error for three years.

Second, to do it the traditional way with command line ftp where you
have no access to the ftp session, upload as the last file in a batch a
small log file containing a time stamp, rename it on the remote server,
download it, compare it with the uploaded file - and if they match,
rename it on the local server. Now check for this file; if and when it
is present, the transfer can be considered successful as the file
otherwise would not be present.

For mail it is much more complicated. The only method I've found is to
set up a custom mail server at the receiving end configured to send back
a receipt which you check for. I used Mercury/32 and Access for this.
Works nice but needs a little maintenance.

If you can go the FTP route, do that.

/gustav

>>> jwcolby at colbyconsulting.com 10-03-2005 18:26:28 >>>
How do you tell if a file transfer completes?




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