API gateway (Zuul) merging two micro service response

Question

I have two micro service, user micro service and order micro service.

User micro service return's the user details and order micro service return the order details for the user.

http://localhost:8080/microservice1/getuser

{"id":"100","name":"test"}

http://localhost:8081/microservice2/getorders

{"userid":"100","orders":{"orderid":"5001","productname":"mobilephone"}}

I am using Spring cloud Zuul as API Gateway which is routing request to each micro service.

http://localhost:9090/api/microservice1/getuser

http://localhost:9090/api/microservice2/getorders

Now from UI, i need to call two endpoints

Is their any way to merge the response of both the micro service like {"id":"100","name":"test","orders":{"orderid":"5001","productname":"mobilephone"}}

So that client only need to call one endpoint http://localhost:9090/api/getdetail

how we can achieve this at API Gateway level ?

Answer 1

Zuul should not be use to aggregate response , you can create orchestration microservice service and internally using restTemplate get all response and aggregate as per need.

Keep Zuul as stateless, gateway should not have any logic or stateful.