Struct sc_rpc::state::ChildState

pub struct ChildState<Block, Client> { /* fields omitted */ }

Child state API with subscriptions support.

Trait Implementations

impl<Block, Client> ChildStateApi<<Block as Block>::Hash> for ChildState<Block, Client> where
    Block: BlockT + 'static,
    Client: Send + Sync + 'static, 

type Metadata = Metadata

RPC Metadata

fn read_child_proof(
    &self,
    child_storage_key: PrefixedStorageKey,
    keys: Vec<StorageKey>,
    block: Option<Block::Hash>
) -> FutureResult<ReadProof<Block::Hash>>

Returns proof of storage for child key entries at a specific block’s state.

fn storage(
    &self,
    storage_key: PrefixedStorageKey,
    key: StorageKey,
    block: Option<Block::Hash>
) -> FutureResult<Option<StorageData>>

Returns a child storage entry at a specific block’s state.

fn storage_keys(
    &self,
    storage_key: PrefixedStorageKey,
    key_prefix: StorageKey,
    block: Option<Block::Hash>
) -> FutureResult<Vec<StorageKey>>

DEPRECATED: Please use childstate_getKeysPaged with proper paging support. Returns the keys with prefix from a child storage, leave empty to get all the keys

fn storage_keys_paged(
    &self,
    storage_key: PrefixedStorageKey,
    prefix: Option<StorageKey>,
    count: u32,
    start_key: Option<StorageKey>,
    block: Option<Block::Hash>
) -> FutureResult<Vec<StorageKey>>

Returns the keys with prefix from a child storage with pagination support. Up to count keys will be returned. If start_key is passed, return next keys in storage in lexicographic order.

fn storage_hash(
    &self,
    storage_key: PrefixedStorageKey,
    key: StorageKey,
    block: Option<Block::Hash>
) -> FutureResult<Option<Block::Hash>>

Returns the hash of a child storage entry at a block’s state.

fn storage_size(
    &self,
    storage_key: PrefixedStorageKey,
    key: StorageKey,
    block: Option<Block::Hash>
) -> FutureResult<Option<u64>>

Returns the size of a child storage entry at a block’s state.

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

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