Business service called in another service, Use of business service

Business service is used to connect with the external system, its is used to connect with the target system.

Scenario:- Create an OSB service in which you call another service(for Ex Hello world service).

Solution:- Create an OSB project 

double click on 


In the proxy service layer, right-click on the layer then Choose Insert Transport---> Choose HTTP



Click on next choose the wsdl , click on Create a Wsdl
Here you need to create a wsdl from previous HelloWorld xsd and choose Interface type as Synchronous Interface, now select input payload and output payload


like that only you need to choose output payload

Click on next then finish, a window appears like

Right-click one external services layer than Insert Protocal--->HTTP--->Click one next 

Rename business service you can select messaging service or Wsdl 
in request and response payload select from previous Helloworld.xsd as you selected previously.

Business service is created like 

 
wire up with pipeline.


Double click on business service, go to transport tab, change the endpoint as to hello world proxy service

Endpoint URI of Previous service HelloWorld:-   /HelloWorld/HelloProxyService

Previous Endpoint of B.S(Business Service) 

= http://localhost:7001/CallBusinessService/BusinessService1

New Endpoint of B.S =  http://localhost:7101/HelloWorld/HelloProxyService

Click on save button

So now this business service is calling Helloworld service

drag-drop pipeline pair

In the request pipeline drag-drop assign activity

After Assign drag-drop Service callout 


Select the service which you want to call (Business service which you created previously) and set the request and response payload


Click on save button

double click on Assign activity 



Click on Ok, set variable as RequestVar


Click on the save button.

Drag-drop replace activity in response pipeline replace body with ResponseVar.
because what response we are getting from the service callout it's stored in ResponseVar

Location:- body
Expression:- .
Value:- $ResponseVar
Replace Option:- select Replace Node Contents






Deploy and test the service getting result as



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