Module bitswap 

Bitswap server for Substrate.

Supports querying indexed transactions by hash over the standard bitswap protocol (v1.2.0). CIDs must reference a supported 256-bit transaction hash.

Modules

schema

Bitswap protobuf schema, generated from the protocol definitions. Include sources generated from protobuf definitions.

Structs

Prefix

CID metadata without the actual content bytes.

Enums

BitswapError

Bitswap client errors.

FetchOutcome

Per-CID outcome from a Bitswap block request.

Constants

BLAKE2B_256_MULTIHASH_CODE

Const from https://github.com/multiformats/multicodec/blame/master/table.csv Multihash code for BLAKE2b-256.

KECCAK_256_MULTIHASH_CODE

Multihash code for Keccak-256.

MAX_WANTED_BLOCKS

Max number of blocks per wantlist.

RAW_CODEC

IPFS raw multicodec used for indexed transaction payload bytes.

SHA2_256_MULTIHASH_CODE

Multihash code for SHA2-256.

Functions

is_cid_supported

Check if a CID is supported by the bitswap protocol — CIDv1, 32-byte digest, with a supported multihash code (Blake2b-256, SHA2-256, or Keccak-256).

request_bitswap_blocks

Send one WANT-BLOCK request for cids to peer and classify the response.

request_bitswap_blocks_unverified

Like request_bitswap_blocks, but does not recompute or verify the hash of received bytes.

Type Aliases

Cid

A Cid that contains a multihash with an allocated size of 512 bits.