Simple execution sample details

Running this sample application

To run the sample application:

1. Open a web browser, and enter the URL for the sample application:

   http://localhost:9090/rulesession

   The following page opens in your browser:

   
2. Click the Validate Loan button. You get a message that says the loan is rejected.
3. Change the Amount field to 20000, and click the Validate Loan button. The loan is approved this time.

Removing the sample application

To remove the sample application:

1. Open the Rule Execution Server console:
   • URL: http://localhost:9090/res
   • User name and password: resAdmin
2. In the Explorer tab, you can see that the my_deployment RuleApp is deployed.
3. In the Samples Console, open the Samples Command tab and expand Samples Commands > Rule Execution Server > Simple execution.
4. Double-click undeployMiniloan to use the command.
5. Refresh the Rule Execution Server console. The RuleApp and resources are no longer deployed.

If you try to use the rulesession application now, you get an error that says the decision service is not deployed.

Rebuilding the sample

To rebuild the sample:

1. Open the Samples Console.
2. In the Samples Command tab,expand Samples Commands > Rule Execution Server > Simple execution.
3. Double-click the clean command. This command removes the built classes, and the RuleApp and its XOM from the Rule Execution Server database.

How this sample works

This sample demonstrates how to call a decision service by using its REST API in a web application. You build a RuleApp by using the Build Command, and deploy it to Rule Execution Server in the sample server by using the Ant task res-desploy. Then, you run a decision service from a web interface in Java™ Script. The call is done by processing a POST request in AJAX:

• The parameters are provided as JSON objects.
• The RuleApp URL is used: /DecisionService/rest/v1/my_deployment/my_operation.
• The data from the request is parsed to get the information to display.

Source files