This is something I also need to look into.
The way that I currently communicate with my MySQL database through DBPRO is via HTTP. I load a PHP script and pass on a GET request which points to the information I require along with a security key; Although, the POST request is more secure.
Sending a post request should be possible using the HTTP REQUEST DATA command; but I have had
trouble using this command with my web server.
I have been using the Urlmon DLL download function as a temporary work around; but I am sure there are other ways HTTP requests can be performed using the network plugins (Multisync/DarkNet/Matrix1).
Urlmon snippet
Load DLL "urlmon.dll", 1
url$ = "http://img423.imageshack.us/img423/4461/dbpro4oo.jpg"
file$ = "C:\dbpro4oo.jpg"
retVal = Call DLL(1, "URLDownloadToFileA", 0, url$, file$, 0, 0)
If retVal = 0
Print "Download successful"
Else
Print "Download failed"
EndIf
Delete DLL 1
Wait Key
End