StreamingFast Relayer

Important

The code has moved to firehose-core, this repository still exists in read-only form so that older dependencies still resolves correctly.

The relayer process fans out and propagates blocks from instrumented blockchain nodes, down to services, serving as a redundant and highly-available access to streaming block & transaction data. It is part of StreamingFast.

Design The Relayer section of the official Firehose documentation provides additional information on its design details.

https://firehose.streamingfast.io/concepts-and-architeceture/components#relayer

Current implementations:

• EOSIO on StreamingFast
• Ethereum on StreamingFast

Schema

			Graph:

		                       [--------------]   [-------------------]
		                       [ Mindreader-1 ]   [ Mindreader-2, ... ]
		                       [--------------]   [-------------------]
		                            \                 /
		                             \               /
		    [-----------------]    [-------------------]
		    [ OneBlocksSource ]    [ MultiplexedSource ]
		    [-----------------]    [-------------------]
		                   \        /
					    [-------------]
					    [ ForkableHub ] (all blocks triggering StepNew)
					    [-------------]
                                 |
                       (hub's single subscriber)
				                 |
 		       [-----------------------------------]
 		       [   pipe Handler: Server.PushBlock  ]
 		       [-----------------------------------]
	                          /          \
		       [-----------------]   [---------------]
		       [ Buffer (dedupe) ]-->[ Subscriptions ]
		       [-----------------]   [---------------]

Contributing

Issues and PR in this repo related strictly to the relayer functionalities

Report any protocol-specific issues in their respective repositories

Please first refer to the general StreamingFast contribution guide, if you wish to contribute to this code base.

License

Apache 2.0