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pezkuwi-subxt/bridges/relays/ethereum-client/src/error.rs
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Svyatoslav Nikolsky ec34870eab Extract minimal ethereum client (#359)
* relay-ethereum-client

* use relay-ethereum-client from ethereum-poa-relay

* cargo fmt --all

* #![warn(missing_docs)]

* EthereumRpcClient -> EthereumClient

* make EthereumHeadersSyncPipeline private

* return concrete type from crate::new

* cleanup dependencies

* *self -> self

* remove trait Client

* sort deps
2024-04-10 10:28:37 +02:00

72 lines
2.5 KiB
Rust

// Copyright 2019-2020 Parity Technologies (UK) Ltd.
// This file is part of Parity Bridges Common.
// Parity Bridges Common 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.
// Parity Bridges Common 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 Parity Bridges Common. If not, see <http://www.gnu.org/licenses/>.
//! Ethereum node RPC errors.
use jsonrpsee::client::RequestError;
use relay_utils::MaybeConnectionError;
/// Result type used by Ethereum client.
pub type Result<T> = std::result::Result<T, Error>;
/// Errors that can occur only when interacting with
/// an Ethereum node through RPC.
#[derive(Debug)]
pub enum Error {
/// An error that can occur when making an HTTP request to
/// an JSON-RPC client.
Request(RequestError),
/// Failed to parse response.
ResponseParseFailed(String),
/// We have received a header with missing fields.
IncompleteHeader,
/// We have received a transaction missing a `raw` field.
IncompleteTransaction,
/// An invalid Substrate block number was received from
/// an Ethereum node.
InvalidSubstrateBlockNumber,
/// An invalid index has been received from an Ethereum node.
InvalidIncompleteIndex,
}
impl From<RequestError> for Error {
fn from(error: RequestError) -> Self {
Error::Request(error)
}
}
impl MaybeConnectionError for Error {
fn is_connection_error(&self) -> bool {
matches!(*self, Error::Request(RequestError::TransportError(_)))
}
}
impl ToString for Error {
fn to_string(&self) -> String {
match self {
Self::Request(e) => e.to_string(),
Self::ResponseParseFailed(e) => e.to_string(),
Self::IncompleteHeader => {
"Incomplete Ethereum Header Received (missing some of required fields - hash, number, logs_bloom)"
.to_string()
}
Self::IncompleteTransaction => "Incomplete Ethereum Transaction (missing required field - raw)".to_string(),
Self::InvalidSubstrateBlockNumber => "Received an invalid Substrate block from Ethereum Node".to_string(),
Self::InvalidIncompleteIndex => "Received an invalid incomplete index from Ethereum Node".to_string(),
}
}
}