Files
pezkuwi-subxt/substrate/client/rpc/src/chain/chain_full.rs
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Hernando Castano 9bd23e7f01 Use Subscription Manager from jsonrpc-pubsub: The Sequel (#6254)
* Bump jsonrpc pubsub, core, http, and ws

Right now these are the packages which _need_ to be updated
so I can just the latest `jsonrpc-pubsub` code. Once a release
it cut upstream the rest of the dependencies should be updated
as well.

* Use jsonrpc-pubsub's SubscriptionManager

This places sc-rpc-api::Subscriptions

* Bump jsonrpc-core outside of sc-rpc-*

* Update client/rpc tests

Right now one of the `author` tests is failing, I
need to think a bit about how best to fix it.

* Remove Subscriptions manager

There's no need for this implementation since we're
using the one from `jsonrpc-pubsub` now

* Fix author RPC test

This test used to check for a numerial subscription ID,
whereas now it uses a string based ID which is the default
provided by `jsonrpc-pubsub`'s subscription manager.

* Remove unused NumericIdProvider

* Add missing bracket

Removed one too many with that last one, lol

* Bump `jsonrpc` to v14.2

There's an exception though. `jsonrpc-derive` cannot be bumped
past v14.0.5 just yet since it has a dependency on `quote` pinned
to v1.0.1. This means that at the moment it won't build on Substrate
since it's using v1.0.3.

* Track `jsonrpc-derive` master branch

* Bump `quote` version to v1.0.6

* Bump `jsonrpc-derive` to v14.2.1

This includes support for `quote` v1.0.6

* Use exact version for jsonrpc crates

Doing this to make sure any updates in jsonrpc don't
accidently trickle down to Polkadot.

Co-authored-by: André Silva <andre.beat@gmail.com>
2020-06-08 17:47:09 +01:00

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2.4 KiB
Rust

// Copyright 2019-2020 Parity Technologies (UK) Ltd.
// This file is part of Substrate.
// Substrate is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Substrate is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Substrate. If not, see <http://www.gnu.org/licenses/>.
//! Blockchain API backend for full nodes.
use std::sync::Arc;
use rpc::futures::future::result;
use jsonrpc_pubsub::manager::SubscriptionManager;
use sc_client_api::{BlockchainEvents, BlockBackend};
use sp_runtime::{generic::{BlockId, SignedBlock}, traits::{Block as BlockT}};
use super::{ChainBackend, client_err, error::FutureResult};
use std::marker::PhantomData;
use sp_blockchain::HeaderBackend;
/// Blockchain API backend for full nodes. Reads all the data from local database.
pub struct FullChain<Block: BlockT, Client> {
/// Substrate client.
client: Arc<Client>,
/// Current subscriptions.
subscriptions: SubscriptionManager,
/// phantom member to pin the block type
_phantom: PhantomData<Block>,
}
impl<Block: BlockT, Client> FullChain<Block, Client> {
/// Create new Chain API RPC handler.
pub fn new(client: Arc<Client>, subscriptions: SubscriptionManager) -> Self {
Self {
client,
subscriptions,
_phantom: PhantomData,
}
}
}
impl<Block, Client> ChainBackend<Client, Block> for FullChain<Block, Client> where
Block: BlockT + 'static,
Client: BlockBackend<Block> + HeaderBackend<Block> + BlockchainEvents<Block> + 'static,
{
fn client(&self) -> &Arc<Client> {
&self.client
}
fn subscriptions(&self) -> &SubscriptionManager {
&self.subscriptions
}
fn header(&self, hash: Option<Block::Hash>) -> FutureResult<Option<Block::Header>> {
Box::new(result(self.client
.header(BlockId::Hash(self.unwrap_or_best(hash)))
.map_err(client_err)
))
}
fn block(&self, hash: Option<Block::Hash>)
-> FutureResult<Option<SignedBlock<Block>>>
{
Box::new(result(self.client
.block(&BlockId::Hash(self.unwrap_or_best(hash)))
.map_err(client_err)
))
}
}