NewJSONBlockTracker creates a new json block tracker.

NewSubscriptionBlockTracker creates a new block tracker using the subscription endpoint.

EventAdd happens when a new event is included in the chain.

EventDel may happen when there is a reorg and a past event is deleted.

BlockEvent is an event emitted when a new block is included.

BlockTracker is an interface to track new blocks on the chain.

Event is an event emitted when a new log is included.

JSONBlockTracker implements the BlockTracker interface using the http jsonrpc endpoint.

SubscriptionBlockTracker is an interface to track new blocks using the newHeads subscription endpoint.

BlockProvider are the eth1x methods required by the block tracker.

EventType is the type of the event.