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Spring Integration Get HTTP Outbound Gateway Response

I need to make a POST call to the REST service and get the returned data (all with JSON). I have an outgoing gateway with my response channel as a chain, and the chain has one transformer.

<int-http:outbound-gateway url="#{appProperties['rootUrl']}#{appProperties['myMethod']}" request-channel="myRequestChannel" reply-channel="myResponseChannel" > </int-http:outbound-gateway> <int:channel id="myResponseChannel"/> <int:chain input-channel="myResponseChannel"> <int:transformer ref="genericResponseTransformer"/> </int:chain>

However, when I debug a transformer, the payload that I receive is just an object of HttpStatus.

Maybe I'm doing something wrong? Any help would be greatly appreciated. Thanks!

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If you do not specify expected-response-type in your gateway, the default behavior is that the response message contains only a status code (expected-response-type is null). Try setting expected-response-type="java.lang.String" :

 <int-http:outbound-gateway url="#{appProperties['rootUrl']}" http-method="#{appProperties['myMethod']}" expected-response-type="java.lang.String" request-channel="myRequestChannel" reply-channel="myResponseChannel" />
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Source: https://habr.com/ru/post/1396688/

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