[−][src]Trait sc_transaction_graph::ChainApi
Concrete extrinsic validation and query logic.
Associated Types
type Block: Block
Block type.
type Hash: Hash + Eq + Member + Serialize
Transaction Hash type
type Error: From<Error> + IntoPoolError
Error type.
type ValidationFuture: Future<Output = Result<TransactionValidity, Self::Error>> + Send + Unpin
Validate transaction future.
type BodyFuture: Future<Output = Result<Option<Vec<<Self::Block as Block>::Extrinsic>>, Self::Error>> + Unpin + Send + 'static
Body future (since block body might be remote)
Required methods
fn validate_transaction(
&self,
at: &BlockId<Self::Block>,
uxt: ExtrinsicFor<Self>
) -> Self::ValidationFuture
&self,
at: &BlockId<Self::Block>,
uxt: ExtrinsicFor<Self>
) -> Self::ValidationFuture
Verify extrinsic at given block.
fn block_id_to_number(
&self,
at: &BlockId<Self::Block>
) -> Result<Option<NumberFor<Self>>, Self::Error>
&self,
at: &BlockId<Self::Block>
) -> Result<Option<NumberFor<Self>>, Self::Error>
Returns a block number given the block id.
fn block_id_to_hash(
&self,
at: &BlockId<Self::Block>
) -> Result<Option<BlockHash<Self>>, Self::Error>
&self,
at: &BlockId<Self::Block>
) -> Result<Option<BlockHash<Self>>, Self::Error>
Returns a block hash given the block id.
fn hash_and_length(&self, uxt: &ExtrinsicFor<Self>) -> (Self::Hash, usize)
Returns hash and encoding length of the extrinsic.
fn block_body(&self, at: &BlockId<Self::Block>) -> Self::BodyFuture
Returns a block body given the block id.