Trait ChainBlocks 

pub trait ChainBlocks: MaybeSend + MaybeSync {
    // Required methods
    fn head<'life0, 'life1, 'async_trait>(
        &'life0 self,
        chain_id: &'life1 str,
    ) -> Pin<Box<dyn Future<Output = Result<BlockStamp, VerifierError>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait;
    fn timestamp<'life0, 'life1, 'async_trait>(
        &'life0 self,
        chain_id: &'life1 str,
        number: BlockNumber,
    ) -> Pin<Box<dyn Future<Output = Result<u64, VerifierError>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait;
}

Read access to chain blocks, keyed by eip155:<chain> identifier.

Admission uses it to judge how fresh a signature’s stated block is. An unrouted chain or failed call is a retryable VerifierError, never a verdict on the signature.

Required Methods

fn head<'life0, 'life1, 'async_trait>( &'life0 self, chain_id: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<BlockStamp, VerifierError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

The chain’s head block.

fn timestamp<'life0, 'life1, 'async_trait>( &'life0 self, chain_id: &'life1 str, number: BlockNumber, ) -> Pin<Box<dyn Future<Output = Result<u64, VerifierError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

The timestamp of block number, which the caller has seen at or below the head.

Implementors

impl ChainBlocks for MultiSmartContractSignatureVerifier

impl ChainBlocks for RpcSmartContractWalletVerifier

One provider serves one chain, so the chain id is already resolved.