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RPC: Block number to block hash (#584)

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* Return hash for given block number.

* Add some tests.

* Fix re-import.
This commit is contained in:
Tomasz Drwięga
2018-08-25 14:11:11 +02:00
committed by Gav Wood
parent 969fcfb97f
commit 2c21f5ff30
7 changed files with 125 additions and 31 deletions
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substrate/substrate/rpc-servers/src/lib.rs
+2 -2
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@@ -31,7 +31,7 @@ extern crate substrate_runtime_primitives;
extern crate log;
use std::io;
use substrate_runtime_primitives::traits::Block as BlockT;
use substrate_runtime_primitives::traits::{Block as BlockT, NumberFor};
type Metadata = apis::metadata::Metadata;
type RpcHandler = pubsub::PubSubHandler<Metadata>;
@@ -49,7 +49,7 @@ pub fn rpc_handler<Block: BlockT, ExHash, PendingExtrinsics, S, C, A, Y>(
ExHash: Send + Sync + 'static + substrate_runtime_primitives::Serialize + substrate_runtime_primitives::DeserializeOwned,
PendingExtrinsics: serde::Serialize + serde::de::DeserializeOwned + Send + Sync + 'static,
S: apis::state::StateApi<Block::Hash, Metadata=Metadata>,
C: apis::chain::ChainApi<Block::Hash, Block::Header, Block::Extrinsic, Metadata=Metadata>,
C: apis::chain::ChainApi<Block::Hash, Block::Header, NumberFor<Block>, Block::Extrinsic, Metadata=Metadata>,
A: apis::author::AuthorApi<ExHash, Block::Extrinsic, PendingExtrinsics, Metadata=Metadata>,
Y: apis::system::SystemApi,
{