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pezkuwi-subxt/substrate/primitives/authority-discovery/src/lib.rs
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2020-01-05 14:05:44 +01:00

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1.6 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/>.
//! Runtime Api to help discover authorities.
#![cfg_attr(not(feature = "std"), no_std)]
use sp_std::vec::Vec;
mod app {
use sp_application_crypto::{app_crypto, key_types::AUTHORITY_DISCOVERY, sr25519};
app_crypto!(sr25519, AUTHORITY_DISCOVERY);
}
/// An authority discovery authority keypair.
#[cfg(feature = "std")]
pub type AuthorityPair = app::Pair;
/// An authority discovery authority identifier.
pub type AuthorityId = app::Public;
/// An authority discovery authority signature.
pub type AuthoritySignature = app::Signature;
sp_api::decl_runtime_apis! {
/// The authority discovery api.
///
/// This api is used by the `client/authority-discovery` module to retrieve identifiers
/// of the current authority set.
pub trait AuthorityDiscoveryApi {
/// Retrieve authority identifiers of the current authority set.
fn authorities() -> Vec<AuthorityId>;
}
}