MarshalBlockMsg builds the JSON from a subset of block fields.

NewBroker creates a new Broker instance.

NewPool intantiates the specified amount of brokers and run them in separate goroutines.

BlockMsg represents the data need by Explorer UI on each new block accepted.

Broker is a pub/sub broker that keeps updated all subscribers (websocket connections) with latest block accepted published by node layer.

BrokerPool is a set of broker workers to provide a simple load balancing.