spring integration http inbound gateway parameters - spring-integration

Question

I have a SpringBoot 2.2.6 application and I would like to set an endpoint with spring-integration therefore I have the follow configuration:
#Bean
public MessageChannel reply() {
return new DirectChannel();
}
#Bean
public IntegrationFlow inbound(TestTransformer testTransformer) {
return IntegrationFlows.from(Http.inboundGateway("/foo")
.requestMapping(m -> m.methods(HttpMethod.GET))
.replyChannel("reply")
.requestPayloadType(String.class))
.channel("httpRequest")
.get();
}
#Bean
#ServiceActivator(inputChannel = "httpRequest", outputChannel = "reply")
public Function<Message<?>, String> handler() {
return new Function<Message<?>, String>() {
public String apply(Message<?> message) throws MessagingException {
log.info("myHandler: " + message.getPayload());
log.info("myHandler: " + message.getHeaders());
return "ok";
}
};
}
Now if I call the enpoint passing params as http://localhost:8080/MyApp/foo?q=test&q1=test2 I receive the parameters in a JSON form.
Is possible to receive something like #PathVariable in the MVC for example writing:
return IntegrationFlows.from(Http.inboundGateway("/foo/{name}")
I have tried it but doesn't work and I canno't find any docs talking about that (at least with java bean configuration)
Thanks

Answer 1

Maybe:
#Bean
public IntegrationFlow test(TestTransformer testTransformer, Jackson2JsonObjectMapper obj) {
return IntegrationFlows.from(Http.inboundGateway("/foo/{name}")
.requestMapping(m -> m.methods(HttpMethod.GET))
.payloadExpression("#pathVariables.name")
.replyChannel("reply")
.requestPayloadType(String.class))
.transform(testTransformer)
.transform(new ObjectToJsonTransformer(obj))
.channel("httpRequest")
.get();
}
is more usefull... The docs is full of xml config and I read it but I'm not able to trasnform them all into java DSL