Hi Saba,

Before introducing new Rule-Service-Rest rule in your application, you need to identify the following things
1.Define the Service package rule for Rule-Service-Rest
2.Identify whether your service package should be Stateful or Stateless in processing mode
3.Does it requires Authentication ?
4.If yes, define new Authentication Service
5.Define the pooling parameters in the Service package

Once, your service package is ready, then define Rule-Service-Rest rule

In service rest rule, identify the following things

1. Define new class structure in primage page context in Service tab.
2. Define the new page name in the service tab
3. Identify the Execution mode whether it should be Synchronously or Asynchronously.
4. In methods tab, identify which method would like to be invoked (GET,POST,PUT or DELETE)
5. Define your service activity in the methods
6. In Request and respone, identify the attribute which are needed.
7. In response option, define the Map from as JSON and mention your page structure pagelist in MapFromKey. Service rest automatically converts the pagelist into JSON object.

Cheers,
Naren