Struct sc_rpc::chain::Chain

pub struct Chain<Block: BlockT, Client> { /* fields omitted */ }

Chain API with subscriptions support.

Trait Implementations

impl<Block, Client> ChainApi<<<Block as Block>::Header as Header>::Number, <Block as Block>::Hash, <Block as Block>::Header, SignedBlock<Block>> for Chain<Block, Client> where
    Block: BlockT + 'static,
    Client: HeaderBackend<Block> + BlockchainEvents<Block> + 'static, 

type Metadata = Metadata

RPC metadata

fn header(
    &self,
    hash: Option<Block::Hash>
) -> FutureResult<Option<Block::Header>>

Get header of a relay chain block.

fn block(
    &self,
    hash: Option<Block::Hash>
) -> FutureResult<Option<SignedBlock<Block>>>

Get header and body of a relay chain block.

fn block_hash(
    &self,
    number: Option<ListOrValue<NumberOrHex>>
) -> Result<ListOrValue<Option<Block::Hash>>>

Get hash of the n-th block in the canon chain.

fn finalized_head(&self) -> Result<Block::Hash>

Get hash of the last finalized block in the canon chain.

fn subscribe_all_heads(
    &self,
    metadata: Self::Metadata,
    subscriber: Subscriber<Block::Header>
)

All head subscription

fn unsubscribe_all_heads(
    &self,
    metadata: Option<Self::Metadata>,
    id: SubscriptionId
) -> RpcResult<bool>

Unsubscribe from all head subscription.

fn subscribe_new_heads(
    &self,
    metadata: Self::Metadata,
    subscriber: Subscriber<Block::Header>
)

New head subscription

fn unsubscribe_new_heads(
    &self,
    metadata: Option<Self::Metadata>,
    id: SubscriptionId
) -> RpcResult<bool>

Unsubscribe from new head subscription.

fn subscribe_finalized_heads(
    &self,
    metadata: Self::Metadata,
    subscriber: Subscriber<Block::Header>
)

Finalized head subscription

fn unsubscribe_finalized_heads(
    &self,
    metadata: Option<Self::Metadata>,
    id: SubscriptionId
) -> RpcResult<bool>

Unsubscribe from finalized head subscription.

fn to_delegate(self) -> IoDelegate<Self, Self::Metadata> where
    Hash: Send + Sync + 'static + Serialize + DeserializeOwned,
    SignedBlock: Send + Sync + 'static + Serialize,
    Header: Send + Sync + 'static + Serialize,
    Number: Send + Sync + 'static, 

Create an IoDelegate, wiring rpc calls to the trait methods.