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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/state_full.rs
+23 -3
View File
@@ -24,7 +24,7 @@ use log::warn;
use jsonrpc_pubsub::{typed::Subscriber, SubscriptionId};
use rpc::{Result as RpcResult, futures::{stream, Future, Sink, Stream, future::result}};
use sc_rpc_api::Subscriptions;
use sc_rpc_api::{Subscriptions, state::ReadProof};
use sc_client_api::backend::Backend;
use sp_blockchain::{Result as ClientResult, Error as ClientError, HeaderMetadata, CachedHeaderMetadata, HeaderBackend};
use sc_client::BlockchainEvents;
@@ -41,7 +41,7 @@ use sp_api::{Metadata, ProvideRuntimeApi, CallApiAt};
use super::{StateBackend, ChildStateBackend, error::{FutureResult, Error, Result}, client_err};
use std::marker::PhantomData;
use sc_client_api::{CallExecutor, StorageProvider, ExecutorProvider};
use sc_client_api::{CallExecutor, StorageProvider, ExecutorProvider, ProofProvider};
/// Ranges to query in state_queryStorage.
struct QueryStorageRange<Block: BlockT> {
@@ -219,7 +219,7 @@ impl<BE, Block: BlockT, Client> FullState<BE, Block, Client>
impl<BE, Block, Client> StateBackend<Block, Client> for FullState<BE, Block, 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,
@@ -351,6 +351,26 @@ impl<BE, Block, Client> StateBackend<Block, Client> for FullState<BE, Block, Cli
self.query_storage(at, Some(at), keys)
}
fn read_proof(
&self,
block: Option<Block::Hash>,
keys: Vec<StorageKey>,
) -> FutureResult<ReadProof<Block::Hash>> {
Box::new(result(
self.block_or_best(block)
.and_then(|block| {
self.client
.read_proof(
&BlockId::Hash(block),
&mut keys.iter().map(|key| key.0.as_ref()),
)
.map(|proof| proof.iter_nodes().map(|node| node.into()).collect())
.map(|proof| ReadProof { at: block, proof })
})
.map_err(client_err),
))
}
fn subscribe_runtime_version(
&self,
_meta: crate::metadata::Metadata,