Files
pezkuwi-subxt/substrate/client/basic-authorship/src/lib.rs
T
Ashley 9220b646d2 Various small improvements to service construction. (#6738)
* Remove service components and add build_network, build_offchain_workers etc

* Improve transaction pool api

* Remove commented out line

* Add PartialComponents

* Add BuildNetworkParams, documentation

* Remove unused imports in tests

* Apply suggestions from code review

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

* Remove unused imports in node-bench

Co-authored-by: Nikolay Volf <nikvolf@gmail.com>
2020-07-28 15:21:33 +02:00

70 lines
2.5 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/>.
//! Basic implementation of block-authoring logic.
//!
//! # Example
//!
//! ```
//! # use sc_basic_authorship::ProposerFactory;
//! # use sp_consensus::{Environment, Proposer, RecordProof};
//! # use sp_runtime::generic::BlockId;
//! # use std::{sync::Arc, time::Duration};
//! # use substrate_test_runtime_client::{
//! # runtime::{Extrinsic, Transfer}, AccountKeyring,
//! # DefaultTestClientBuilderExt, TestClientBuilderExt,
//! # };
//! # use sc_transaction_pool::{BasicPool, FullChainApi};
//! # let client = Arc::new(substrate_test_runtime_client::new());
//! # let spawner = sp_core::testing::TaskExecutor::new();
//! # let txpool = BasicPool::new_full(
//! # Default::default(),
//! # None,
//! # spawner,
//! # client.clone(),
//! # );
//! // The first step is to create a `ProposerFactory`.
//! let mut proposer_factory = ProposerFactory::new(client.clone(), txpool.clone(), None);
//!
//! // From this factory, we create a `Proposer`.
//! let proposer = proposer_factory.init(
//! &client.header(&BlockId::number(0)).unwrap().unwrap(),
//! );
//!
//! // The proposer is created asynchronously.
//! let proposer = futures::executor::block_on(proposer).unwrap();
//!
//! // This `Proposer` allows us to create a block proposition.
//! // The proposer will grab transactions from the transaction pool, and put them into the block.
//! let future = proposer.propose(
//! Default::default(),
//! Default::default(),
//! Duration::from_secs(2),
//! RecordProof::Yes,
//! );
//!
//! // We wait until the proposition is performed.
//! let block = futures::executor::block_on(future).unwrap();
//! println!("Generated block: {:?}", block.block);
//! ```
//!
mod basic_authorship;
pub use crate::basic_authorship::{ProposerFactory, Proposer};