CODEWITHSUNDEEP
corda
Jk_
Jk_

Reputation: 105

How to change the Initiator of a flow within a flow in Corda?

I have 2 Nodes say Party A and Party B. I am hitting an API through Party A's node with some data then I need to process(Inside a flow) this data and create a State say State A(Party A will be the participant) then I need to Initiate another flow with the processed data(from the first flow itself) and party B as Initiator. So how will I do this? . Basically What I need to do is like I need to initiate 2 flows of different initiators inside one API call.

Upvotes: 1

Views: 136

Answers (1)

Gokulnath
Gokulnath

Reputation: 44

I think you can make use of sendAndReceive. In Responder class, which will be Initiated by the second party can make use of the data that send from the MainClassInitiator, which will be initiated by first Party.

    class MainClass {
        @InitiatingFlow
        @StartableByRPC
        open class MainClassInitiator(val ParameterFromApi: DataType,
                                      val NodeB: Party) : FlowLogic<SignedTransaction>() {
            @Suspendable
            override fun call(): SignedTransaction {

                val notary = serviceHub.networkMapCache.notaryIdentities[0]

                val initiator = NodeB

                val session = initiateFlow(initiator)
                val initiatorValue = session.sendAndReceive<SignedTransaction>(ParameterFromApi).unwrap { it }
            }
        }

        @InitiatedBy(MainClassInitiator::class)
        class Responder(val session: FlowSession) : FlowLogic<SignedTransaction>() {
            @Suspendable
            override fun call(): SignedTransaction {

                val request = session.receive<DataType>().unwrap { it }

    }
}
}

Upvotes: 1

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