A while ago I have described the most simple Delphi 2009 DataSnap "Echo" application in "Getting Started with Delphi DataSnap 2009" blog post and in the EDN article. DataSnap 2009 uses custom JSON-based protocol for on-the-wire communication between clients and servers. It is very easy to intercept and log messages being exchanged in DataSnap 2009. As a starting point for adding logging to a simple DataSnap server application, I'm going to use "DelphiDataSnapEchoServer" descibed in my previou...

Introduction The new DataSnap 2009 architecture extends the DBX4 database driver framework introduced in Delphi 2007 and C++Builder 2007. The DBX4 framework abstracted away the concept of a database driver and introduced the notion of extensible command types. DataSnap 2009 takes advantage of the DBX4 extensibility and adds to the portfolio of existing databases drivers the new “DataSnap” driver that - from the perspective of a client application - looks very much like a database, but in realit...