Files
pezkuwi-subxt/substrate/client/rpc-api/src/chain/mod.rs
T
Sergei Shulepov 3ec4844616 Make NumberOrHex a common primitive. (#6321)
* Make NumberOrHex a common primitive.

* Update primitives/rpc/src/number.rs

Co-authored-by: Nikolay Volf <nikvolf@gmail.com>

Co-authored-by: Nikolay Volf <nikvolf@gmail.com>
2020-06-10 15:08:15 +00:00

115 lines
3.6 KiB
Rust

// This file is part of Substrate.
// Copyright (C) 2017-2020 Parity Technologies (UK) Ltd.
// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
// This program 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.
// This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
//! Substrate blockchain API.
pub mod error;
use jsonrpc_core::Result as RpcResult;
use jsonrpc_core::futures::Future;
use jsonrpc_derive::rpc;
use jsonrpc_pubsub::{typed::Subscriber, SubscriptionId};
use sp_rpc::{number::NumberOrHex, list::ListOrValue};
use self::error::{FutureResult, Result};
pub use self::gen_client::Client as ChainClient;
/// Substrate blockchain API
#[rpc]
pub trait ChainApi<Number, Hash, Header, SignedBlock> {
/// RPC metadata
type Metadata;
/// Get header of a relay chain block.
#[rpc(name = "chain_getHeader")]
fn header(&self, hash: Option<Hash>) -> FutureResult<Option<Header>>;
/// Get header and body of a relay chain block.
#[rpc(name = "chain_getBlock")]
fn block(&self, hash: Option<Hash>) -> FutureResult<Option<SignedBlock>>;
/// Get hash of the n-th block in the canon chain.
///
/// By default returns latest block hash.
#[rpc(name = "chain_getBlockHash", alias("chain_getHead"))]
fn block_hash(
&self,
hash: Option<ListOrValue<NumberOrHex>>,
) -> Result<ListOrValue<Option<Hash>>>;
/// Get hash of the last finalized block in the canon chain.
#[rpc(name = "chain_getFinalizedHead", alias("chain_getFinalisedHead"))]
fn finalized_head(&self) -> Result<Hash>;
/// All head subscription
#[pubsub(subscription = "chain_allHead", subscribe, name = "chain_subscribeAllHeads")]
fn subscribe_all_heads(&self, metadata: Self::Metadata, subscriber: Subscriber<Header>);
/// Unsubscribe from all head subscription.
#[pubsub(subscription = "chain_allHead", unsubscribe, name = "chain_unsubscribeAllHeads")]
fn unsubscribe_all_heads(
&self,
metadata: Option<Self::Metadata>,
id: SubscriptionId,
) -> RpcResult<bool>;
/// New head subscription
#[pubsub(
subscription = "chain_newHead",
subscribe,
name = "chain_subscribeNewHeads",
alias("subscribe_newHead", "chain_subscribeNewHead")
)]
fn subscribe_new_heads(&self, metadata: Self::Metadata, subscriber: Subscriber<Header>);
/// Unsubscribe from new head subscription.
#[pubsub(
subscription = "chain_newHead",
unsubscribe,
name = "chain_unsubscribeNewHeads",
alias("unsubscribe_newHead", "chain_unsubscribeNewHead")
)]
fn unsubscribe_new_heads(
&self,
metadata: Option<Self::Metadata>,
id: SubscriptionId,
) -> RpcResult<bool>;
/// Finalized head subscription
#[pubsub(
subscription = "chain_finalizedHead",
subscribe,
name = "chain_subscribeFinalizedHeads",
alias("chain_subscribeFinalisedHeads")
)]
fn subscribe_finalized_heads(&self, metadata: Self::Metadata, subscriber: Subscriber<Header>);
/// Unsubscribe from finalized head subscription.
#[pubsub(
subscription = "chain_finalizedHead",
unsubscribe,
name = "chain_unsubscribeFinalizedHeads",
alias("chain_unsubscribeFinalisedHeads")
)]
fn unsubscribe_finalized_heads(
&self,
metadata: Option<Self::Metadata>,
id: SubscriptionId,
) -> RpcResult<bool>;
}