chain

getBlock(hash?: BlockHash): SignedBlock

• interface: chain.getBlock

• jsonrpc: chain_getBlock

• summary: Get header and body of a relay chain block

getBlockHash(blockNumber?: BlockNumber): BlockHash

• interface: chain.getBlockHash

• jsonrpc: chain_getBlockHash

• summary: Get the block hash for a specific block

getFinalizedHead(): BlockHash

• interface: chain.getFinalizedHead

• jsonrpc: chain_getFinalizedHead

• summary: Get hash of the last finalized block in the canon chain

getHeader(hash?: BlockHash): Header

• interface: chain.getHeader

• jsonrpc: chain_getHeader

• summary: Retrieves the header for a specific block

subscribeAllHeads(): Header

• interface: chain.subscribeAllHeads

• jsonrpc: chain_subscribeAllHeads

• summary: Retrieves the newest header via subscription

subscribeFinalizedHeads(): Header

• interface: chain.subscribeFinalizedHeads

• jsonrpc: chain_subscribeFinalizedHeads

• summary: Retrieves the best finalized header via subscription

subscribeNewHeads(): Header

• interface: chain.subscribeNewHeads

• jsonrpc: chain_subscribeNewHeads

• summary: Retrieves the best header via subscription