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https://github.com/pezkuwichain/pezkuwi-subxt.git
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Gav
57 lines
1.8 KiB
Rust
57 lines
1.8 KiB
Rust
// Copyright 2017 Parity Technologies (UK) Ltd.
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// This file is part of Polkadot.
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// Polkadot 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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// Polkadot 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 Polkadot. If not, see <http://www.gnu.org/licenses/>.
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//! Polkadot state API.
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mod error;
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#[cfg(test)]
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mod tests;
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use client::{self, Client};
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use primitives::block;
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use primitives::storage::{StorageKey, StorageData};
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use state_machine;
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use self::error::Result;
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build_rpc_trait! {
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/// Polkadot state API
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pub trait StateApi {
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/// Returns a storage entry.
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#[rpc(name = "state_getStorage")]
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fn storage(&self, StorageKey, block::HeaderHash) -> Result<StorageData>;
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/// Call a contract.
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#[rpc(name = "state_call")]
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fn call(&self, String, Vec<u8>, block::HeaderHash) -> Result<Vec<u8>>;
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}
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}
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impl<B, E> StateApi for Client<B, E> where
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B: client::backend::Backend + Send + Sync + 'static,
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E: state_machine::CodeExecutor + Send + Sync + 'static,
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client::error::Error: From<<<B as client::backend::Backend>::State as state_machine::backend::Backend>::Error>,
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{
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fn storage(&self, key: StorageKey, block: block::HeaderHash) -> Result<StorageData> {
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Ok(self.storage(&block, &key)?)
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}
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fn call(&self, method: String, data: Vec<u8>, block: block::HeaderHash) -> Result<Vec<u8>> {
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Ok(self.call(&block, &method, &data)?.return_data)
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}
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}
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