mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-26 16:57:58 +00:00
Xiliang Chen
febb6e29b2
* add storage_getNextKey * RPC storage_getKeysPages * respect count * use iterator * improve * add tests * improve * add doc comments * Make prefix optional * update error * improve
83 lines
2.4 KiB
Rust
83 lines
2.4 KiB
Rust
// Copyright 2017-2020 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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//! State RPC errors.
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use crate::errors;
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use jsonrpc_core as rpc;
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/// State RPC Result type.
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pub type Result<T> = std::result::Result<T, Error>;
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/// State RPC future Result type.
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pub type FutureResult<T> = Box<dyn rpc::futures::Future<Item = T, Error = Error> + Send>;
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/// State RPC errors.
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#[derive(Debug, derive_more::Display, derive_more::From)]
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pub enum Error {
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/// Client error.
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#[display(fmt="Client error: {}", _0)]
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Client(Box<dyn std::error::Error + Send>),
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/// Provided block range couldn't be resolved to a list of blocks.
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#[display(fmt = "Cannot resolve a block range ['{:?}' ... '{:?}]. {}", from, to, details)]
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InvalidBlockRange {
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/// Beginning of the block range.
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from: String,
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/// End of the block range.
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to: String,
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/// Details of the error message.
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details: String,
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},
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/// Provided count exceeds maximum value.
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#[display(fmt = "count exceeds maximum value. value: {}, max: {}", value, max)]
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InvalidCount {
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/// Provided value
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value: u32,
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/// Maximum allowed value
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max: u32,
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},
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}
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impl std::error::Error for Error {
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fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
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match self {
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Error::Client(ref err) => Some(&**err),
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_ => None,
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}
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}
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}
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/// Base code for all state errors.
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const BASE_ERROR: i64 = 4000;
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impl From<Error> for rpc::Error {
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fn from(e: Error) -> Self {
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match e {
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Error::InvalidBlockRange { .. } => rpc::Error {
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code: rpc::ErrorCode::ServerError(BASE_ERROR + 1),
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message: format!("{}", e),
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data: None,
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},
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Error::InvalidCount { .. } => rpc::Error {
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code: rpc::ErrorCode::ServerError(BASE_ERROR + 2),
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message: format!("{}", e),
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data: None,
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},
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e => errors::internal(e),
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}
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}
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}
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