Using REST request in Delphi

Question

I need to write a simple REST-server in Delphi and a client in Ruby on Rails. I've watched all of the videos by Marco Cantu about REST in Delphi and I've got a question:

How can Delphi process requests like "/users/1" where 1 is the ID of a user?

All of the examples I've seen use simple functions (like EchoString(value) or ReverseString(Value) ) and the request is "Datasnap/rest/ClassName/EchoString/Value" , but I need a request like "Datasnap/rest/classname/123" .

For example: TContractsCollection is a collection of contracts and I want to view the contract with ID=324556 . So in a browser (and in the RoR client) it will be (for example):

"http://localhost:3000/DataSnap/rest/TContractsCollection/324556"

But Delphi writes:

"TContractsCollection method not found in the server method list"

Any ideas?

Answer 1

You can define a function in the TdmServerModule like function

ProcessContract(ContractNo:Integer): String 

when

http://localhost:3000/DataSnap/rest/ProcessContract/324556

is called, the ContractNo will be set to 324556