Apache Camel Rest - How to send request and response from previous endpoint to next

Question

I wanted to implement a camel DSL logic where eg I have two routes where the request received for first route should be passed to second route along with the response from first route. How do I achieve this?

        `.to("direct:validatePayload")
            .to("bean:fundService?method=depositFund(${exchange})")
            .to("bean:rparticipantService?method=notifyParticipant(${exchange})");`

In the above code, after validating the request payload, the exchange which has the Fund body is passed as request to depositFund. After this, I wanted to pass the request to notifyParticipant which will be combination of response from depositFund along with the request that depositFund received. How do I achieve this through camel DSL code.

Answer 1

Take a look at Message History: https://cwiki.apache.org/confluence/display/CAMEL/Message+History

In the rparticipantService#notifyParticipant you should be able to lookup history and get results of fundService#depositFund .

List<MessageHistory> list = exchange.getProperty(Exchange.MESSAGE_HISTORY, List.class);

Also you will need to tune MessageHistoryFactory to be able to access the message + body:

camelContext.getMessageHistoryFactory().setCopyMessage(true);