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.

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.