Schemas

StreamingFast Firehose schemas

Chain-specific schemas

Firehose currently has Layer 1 Protocol Buffer schemas for several different blockchains. Follow the links below to find the schemas relevant to the blockchain being targeted.

• Ethereum Protobuf Definitions

• NEAR Protobuf Definitions

• Solana Protobuf Definitions:

  • Solana Block data model (original)

  • Solana Account Changes data model (account changes only)

• Arweave Protobuf Definitions

• Aptos Protobuf Definitions

The bstream Block

The bstream Block is the main blockchain-agnostic object flowing throughout Firehose.

Note: The stream Block is the envelope used to pass blockchain-specific Block objects, for Ethereum, as an example.

Versioning

Coming Soon

Discussion on general multi-chain considerations of versioning in the Firehose suite to answer questions such as:

• when do we change the namespace,

• when do we bump the version field in the block.