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Add RPC function state_getProof, resolves #1110 (#5649)

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* Add RPC function state_getProof, resolves #1110

* Apply suggestions from code review

* Update client/rpc/src/state/state_full.rs

Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com>

* Update Cargo.lock

* Make block hash optional

* Wrap StorageProof as Bytes

* Add struct ReadProof

* Fix typo

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
This commit is contained in:
Yuanchao Sun
2020-04-21 03:09:55 +08:00
committed by GitHub
parent 0ce9657db2
commit 52d0173ec3
5 changed files with 82 additions and 7 deletions
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substrate/client/rpc/src/state/mod.rs
+14 -3
View File
@@ -26,7 +26,7 @@ use std::sync::Arc;
use jsonrpc_pubsub::{typed::Subscriber, SubscriptionId};
use rpc::{Result as RpcResult, futures::{Future, future::result}};
use sc_rpc_api::Subscriptions;
use sc_rpc_api::{Subscriptions, state::ReadProof};
use sc_client::{light::{blockchain::RemoteBlockchain, fetcher::Fetcher}};
use sp_core::{Bytes, storage::{StorageKey, PrefixedStorageKey, StorageData, StorageChangeSet}};
use sp_version::RuntimeVersion;
@@ -38,7 +38,7 @@ use self::error::{Error, FutureResult};
pub use sc_rpc_api::state::*;
pub use sc_rpc_api::child_state::*;
use sc_client_api::{ExecutorProvider, StorageProvider, BlockchainEvents, Backend};
use sc_client_api::{ExecutorProvider, StorageProvider, BlockchainEvents, Backend, ProofProvider};
use sp_blockchain::{HeaderMetadata, HeaderBackend};
const STORAGE_KEYS_PAGED_MAX_COUNT: u32 = 1000;
@@ -128,6 +128,13 @@ pub trait StateBackend<Block: BlockT, Client>: Send + Sync + 'static
at: Option<Block::Hash>
) -> FutureResult<Vec<StorageChangeSet<Block::Hash>>>;
/// Returns proof of storage entries at a specific block's state.
fn read_proof(
&self,
block: Option<Block::Hash>,
keys: Vec<StorageKey>,
) -> FutureResult<ReadProof<Block::Hash>>;
/// New runtime version subscription
fn subscribe_runtime_version(
&self,
@@ -166,7 +173,7 @@ pub fn new_full<BE, Block: BlockT, Client>(
where
Block: BlockT + 'static,
BE: Backend<Block> + 'static,
Client: ExecutorProvider<Block> + StorageProvider<Block, BE> + HeaderBackend<Block>
Client: ExecutorProvider<Block> + StorageProvider<Block, BE> + ProofProvider<Block> + HeaderBackend<Block>
+ HeaderMetadata<Block, Error = sp_blockchain::Error> + BlockchainEvents<Block>
+ CallApiAt<Block, Error = sp_blockchain::Error>
+ ProvideRuntimeApi<Block> + Send + Sync + 'static,
@@ -294,6 +301,10 @@ impl<Block, Client> StateApi<Block::Hash> for State<Block, Client>
self.backend.query_storage_at(keys, at)
}
fn read_proof(&self, keys: Vec<StorageKey>, block: Option<Block::Hash>) -> FutureResult<ReadProof<Block::Hash>> {
self.backend.read_proof(block, keys)
}
fn subscribe_storage(
&self,
meta: Self::Metadata,