MicroProfile LRA Participant recovery scenario

gistfile1.txt

Example has 3 components
- A client application which can be anything. It calls 2 endpoints to process a User action.
- The client application retrieves the actual URLs of the endpoint from a service discocvery component just before calling them as they can be located at any URL.
- A service A which is the first step in the transaction
- A service B which is the second step.


What happens when the ServiceB cancels the LRA but service A is crashed at that moment and restored at a different URL.

How is the cancelStepA() called eventually?

----
@Path("/serviceA")
public class serviceA {

   @POST
   @LRA(end = false)
   public Response doStepA(....) {
   }
   
   @Compensate
   public Response cancelStepA(@HeaderParam(LRA_HTTP_HEADER) String lraId) {
   }

    @Recover
    public Response participantHasMoved(
                    @HeaderParam(LRA_HTTP_RECOVERY_HEADER) String recoveryId) {...}
}

@Path("/serviceB")
@LRA
public class serviceB {

   @POST
   public Response doStepB(....) {
   }
}
----