Quick start with Firehose for Stellar can be found in the official Firehose docs. Here some quick links to it:
The below command with start streaming Firehose Stellar blocks, check proto/sf/stellar/type/v1/block.proto
for more information.
firestellar fetch {FIRST_STREAMABLE_BLOCK} --endpoints {STELLAR_RPC_ENDPOINT} --state-dir {STATE_DIR}
For more information, please read the CONTRIBUTING.md file.