Tutorial: Delphi DataSnap Communication Filters
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In DataSnap architecture, you can use different communication protocols, like TCP/IP or HTTP. You also can use various communication filters that make it possible for you to modify the byte stream that is exchanged between the client and the server.
To explain the usage of the DataSnap communication filters, this tutorial will help you create a DataSnap Server and a DataSnap Client that communicate through a filtered (using a compression filter) byte stream. The result displayed is the reverse string of the string you typed.