Handle sequential HTTP calls with the same message

Question

I would like to make two sequential calls one after the other, but using the same request message for both calls. But as shown in my sample code, the response from the first post call becomes the request of the second call by default. What is the most elegant solution for this pattern in spring integration

 public IntegrationFlow test() {
   return IntegrationFlows
       .from("testChannel")
       .handle(httpConfigurations.postCall1())
       .handle(httpConfigurations.postCall2())
       .get();
 }

score 2 · Accepted Answer · answered Jan 18 '19 at 17:16

2

Before the first .handle add a header enricher with an expression to copy the payload to a header.

Before the second .handle use a .transform() to copy the header back to the payload.

answered Jan 18 '19 at 17:16

Gary Russell

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You also can use a `publishSubscribeChannel()` with both those `handle()` as `subscribe()` sub-flows. – Artem Bilan Jan 18 '19 at 17:23
@Artem Bilan, I think the publishsubscribeChannel() would not do the calls in a sequential manner! – Nandagopal Sekar Jan 21 '19 at 09:46
Without an `executor` (by default) it does. Please, see it’s source code if you are still in a doubt – Artem Bilan Jan 21 '19 at 12:52

Handle sequential HTTP calls with the same message

1 Answers1