Files
pezkuwi-subxt/substrate/bin/node/rpc/src/lib.rs
T
Sergei Pepyakin df6ef1780f pallet-contracts: Rent projection RPC (#4754)
* Initial approach

* Introduce the pallet-contracts-common crate

* Add rent::compute_rent_projection

* Wire everything together

* Fix build error.

* Rename EvictionDate → EvictionAt.

* Clean.

* Renaming and cleaning.

* Add documentation for rent_projection RPC.

* Add documentation for rent_projection runtime API.

* Refactor rent_budget.

Merge it with subsistence_treshold.

* Bump impl_version

* Constrain RPC impl with Block::Header::Number.

* Rename pallet-contracts-common into -primitives

* Add a comment for `compute_rent_projection` on the usage

* Small tidying
2020-01-31 15:22:25 +01:00

102 lines
3.7 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/>.
//! A collection of node-specific RPC methods.
//!
//! Since `substrate` core functionality makes no assumptions
//! about the modules used inside the runtime, so do
//! RPC methods defined in `sc-rpc` crate.
//! It means that `client/rpc` can't have any methods that
//! need some strong assumptions about the particular runtime.
//!
//! The RPCs available in this crate however can make some assumptions
//! about how the runtime is constructed and what `SRML` modules
//! are part of it. Therefore all node-runtime-specific RPCs can
//! be placed here or imported from corresponding `SRML` RPC definitions.
#![warn(missing_docs)]
use std::sync::Arc;
use node_primitives::{Block, BlockNumber, AccountId, Index, Balance};
use node_runtime::UncheckedExtrinsic;
use sp_api::ProvideRuntimeApi;
use sp_transaction_pool::TransactionPool;
/// Light client extra dependencies.
pub struct LightDeps<F> {
/// Remote access to the blockchain (async).
pub remote_blockchain: Arc<dyn sc_client::light::blockchain::RemoteBlockchain<Block>>,
/// Fetcher instance.
pub fetcher: Arc<F>,
}
impl<F> LightDeps<F> {
/// Create empty `LightDeps` with given `F` type.
///
/// This is a convenience method to be used in the service builder,
/// to make sure the type of the `LightDeps<F>` is matching.
pub fn none(_: Option<Arc<F>>) -> Option<Self> {
None
}
}
/// Instantiate all RPC extensions.
///
/// If you provide `LightDeps`, the system is configured for light client.
pub fn create<C, P, M, F>(
client: Arc<C>,
pool: Arc<P>,
light_deps: Option<LightDeps<F>>,
) -> jsonrpc_core::IoHandler<M> where
C: ProvideRuntimeApi<Block>,
C: sc_client::blockchain::HeaderBackend<Block>,
C: Send + Sync + 'static,
C::Api: substrate_frame_rpc_system::AccountNonceApi<Block, AccountId, Index>,
C::Api: pallet_contracts_rpc::ContractsRuntimeApi<Block, AccountId, Balance, BlockNumber>,
C::Api: pallet_transaction_payment_rpc::TransactionPaymentRuntimeApi<Block, Balance, UncheckedExtrinsic>,
F: sc_client::light::fetcher::Fetcher<Block> + 'static,
P: TransactionPool + 'static,
M: jsonrpc_core::Metadata + Default,
{
use substrate_frame_rpc_system::{FullSystem, LightSystem, SystemApi};
use pallet_contracts_rpc::{Contracts, ContractsApi};
use pallet_transaction_payment_rpc::{TransactionPayment, TransactionPaymentApi};
let mut io = jsonrpc_core::IoHandler::default();
if let Some(LightDeps { remote_blockchain, fetcher }) = light_deps {
io.extend_with(
SystemApi::<AccountId, Index>::to_delegate(LightSystem::new(client, remote_blockchain, fetcher, pool))
);
} else {
io.extend_with(
SystemApi::to_delegate(FullSystem::new(client.clone(), pool))
);
// Making synchronous calls in light client freezes the browser currently,
// more context: https://github.com/paritytech/substrate/pull/3480
// These RPCs should use an asynchronous caller instead.
io.extend_with(
ContractsApi::to_delegate(Contracts::new(client.clone()))
);
io.extend_with(
TransactionPaymentApi::to_delegate(TransactionPayment::new(client))
);
}
io
}