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Move srml RPC extensions to separate crates (#3791)
* Move srml-system RPC out. * Fix tests for system-rpc module. * Contracts RPC moved. * Fix rpc test. * Clean up. * Update lockfile. * Bump runtime version. * Update srml/contracts/rpc/runtime-api/src/lib.rs Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com> * Bump impl version.
This commit is contained in:
Tomasz Drwięga
committed by
Gavin Wood
Gavin Wood
parent
642c8504c4
commit
dc92631180
@@ -0,0 +1,17 @@
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[package]
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name = "srml-contracts-rpc"
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version = "2.0.0"
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authors = ["Parity Technologies <admin@parity.io>"]
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edition = "2018"
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[dependencies]
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client = { package = "substrate-client", path = "../../../core/client" }
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codec = { package = "parity-scale-codec", version = "1.0.0" }
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jsonrpc-core = "13.2.0"
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jsonrpc-core-client = "13.2.0"
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jsonrpc-derive = "13.2.0"
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rpc-primitives = { package = "substrate-rpc-primitives", path = "../../../core/rpc/primitives" }
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serde = { version = "1.0.101", features = ["derive"] }
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sr-primitives = { path = "../../../core/sr-primitives" }
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srml-contracts-rpc-runtime-api = { path = "./runtime-api" }
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@@ -0,0 +1,20 @@
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[package]
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name = "srml-contracts-rpc-runtime-api"
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version = "2.0.0"
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authors = ["Parity Technologies <admin@parity.io>"]
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edition = "2018"
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[dependencies]
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client = { package = "substrate-client", path = "../../../../core/client", default-features = false }
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codec = { package = "parity-scale-codec", version = "1.0.0", default-features = false, features = ["derive"] }
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rstd = { package = "sr-std", path = "../../../../core/sr-std", default-features = false }
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serde = { version = "1.0.101", optional = true, features = ["derive"] }
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[features]
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default = ["std"]
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std = [
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"client/std",
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"codec/std",
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"rstd/std",
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"serde",
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]
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@@ -0,0 +1,64 @@
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// Copyright 2019 Parity Technologies (UK) Ltd.
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// This file is part of Substrate.
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// Substrate is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Substrate is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Substrate. If not, see <http://www.gnu.org/licenses/>.
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//! Runtime API definition required by Contracts RPC extensions.
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//!
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//! This API should be imported and implemented by the runtime,
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//! of a node that wants to use the custom RPC extension
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//! adding Contracts access methods.
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#![cfg_attr(not(feature = "std"), no_std)]
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use rstd::vec::Vec;
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use codec::{Encode, Decode, Codec};
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/// A result of execution of a contract.
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#[derive(Eq, PartialEq, Encode, Decode)]
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#[cfg_attr(feature = "std", derive(Debug, serde::Serialize, serde::Deserialize))]
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pub enum ContractExecResult {
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/// The contract returned successfully.
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///
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/// There is a status code and, optionally, some data returned by the contract.
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Success {
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/// Status code returned by the contract.
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status: u8,
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/// Output data returned by the contract.
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///
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/// Can be empty.
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data: Vec<u8>,
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},
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/// The contract execution either trapped or returned an error.
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Error,
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}
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client::decl_runtime_apis! {
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/// The API to interact with contracts without using executive.
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pub trait ContractsApi<AccountId, Balance> where
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AccountId: Codec,
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Balance: Codec,
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{
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/// Perform a call from a specified account to a given contract.
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///
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/// See the contracts' `call` dispatchable function for more details.
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fn call(
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origin: AccountId,
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dest: AccountId,
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value: Balance,
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gas_limit: u64,
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input_data: Vec<u8>,
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) -> ContractExecResult;
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}
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}
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@@ -0,0 +1,123 @@
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// Copyright 2019 Parity Technologies (UK) Ltd.
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// This file is part of Substrate.
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// Substrate is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Substrate is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Substrate. If not, see <http://www.gnu.org/licenses/>.
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//! Node-specific RPC methods for interaction with contracts.
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use std::sync::Arc;
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use serde::{Serialize, Deserialize};
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use client::blockchain::HeaderBackend;
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use codec::Codec;
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use jsonrpc_core::{Error, ErrorCode, Result};
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use jsonrpc_derive::rpc;
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use sr_primitives::{
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generic::BlockId,
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traits::{Block as BlockT, ProvideRuntimeApi},
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};
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use rpc_primitives::number;
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pub use srml_contracts_rpc_runtime_api::{ContractExecResult, ContractsApi as ContractsRuntimeApi};
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pub use self::gen_client::Client as ContractsClient;
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/// A struct that encodes RPC parameters required for a call to a smart-contract.
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#[derive(Serialize, Deserialize)]
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#[serde(rename_all="camelCase")]
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#[serde(deny_unknown_fields)]
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pub struct CallRequest<AccountId, Balance> {
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origin: AccountId,
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dest: AccountId,
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value: Balance,
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gas_limit: number::NumberOrHex<u64>,
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input_data: Vec<u8>,
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}
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/// Contracts RPC methods.
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#[rpc]
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pub trait ContractsApi<BlockHash, AccountId, Balance> {
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/// Executes a call to a contract.
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///
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/// This call is performed locally without submitting any transactions. Thus executing this
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/// won't change any state. Nonetheless, the calling state-changing contracts is still possible.
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///
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/// This method is useful for calling getter-like methods on contracts.
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#[rpc(name = "contracts_call")]
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fn call(
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&self,
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call_request: CallRequest<AccountId, Balance>,
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at: Option<BlockHash>,
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) -> Result<ContractExecResult>;
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}
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/// An implementation of contract specific RPC methods.
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pub struct Contracts<C, B> {
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client: Arc<C>,
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_marker: std::marker::PhantomData<B>,
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}
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impl<C, B> Contracts<C, B> {
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/// Create new `Contracts` with the given reference to the client.
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pub fn new(client: Arc<C>) -> Self {
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Contracts { client, _marker: Default::default() }
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}
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}
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const RUNTIME_ERROR: i64 = 1;
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impl<C, Block, AccountId, Balance> ContractsApi<<Block as BlockT>::Hash, AccountId, Balance> for Contracts<C, Block>
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where
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Block: BlockT,
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C: Send + Sync + 'static,
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C: ProvideRuntimeApi,
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C: HeaderBackend<Block>,
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C::Api: ContractsRuntimeApi<Block, AccountId, Balance>,
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AccountId: Codec,
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Balance: Codec,
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{
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fn call(
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&self,
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call_request: CallRequest<AccountId, Balance>,
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at: Option<<Block as BlockT>::Hash>,
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) -> Result<ContractExecResult> {
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let api = self.client.runtime_api();
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let at = BlockId::hash(at.unwrap_or_else(||
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// If the block hash is not supplied assume the best block.
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self.client.info().best_hash
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));
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let CallRequest {
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origin,
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dest,
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value,
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gas_limit,
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input_data
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} = call_request;
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let gas_limit = gas_limit.to_number().map_err(|e| Error {
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code: ErrorCode::InvalidParams,
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message: e,
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data: None,
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})?;
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let exec_result = api
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.call(&at, origin, dest, value, gas_limit, input_data)
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.map_err(|e| Error {
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code: ErrorCode::ServerError(RUNTIME_ERROR),
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message: "Runtime trapped while executing a contract.".into(),
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data: Some(format!("{:?}", e).into()),
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})?;
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Ok(exec_result)
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}
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}
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