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Hyperledger Java SDK Client Event Listener

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I have a Java SDK based client for the Hyperledger fabric and am able to connect and send transaction proposal requests, create entries in the ledger and query the ledger.

I am struggling with registering and listening to BLOCK and CHAINCODE events. I want to start a separate thread on the client that is dedicated to listening and processing these events.

What I found so far:

HFClient client = HFClient.createNewInstance();
Channel channel = client.newChannel("channel01");
EventHub eventHub = client.newEventHub("eh01", "grpc://");

Beyond this I am lost. Can someone please post a sample of how to do this?

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