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// 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/>.
//! Substrate node RPC errors.
use jsonrpsee::client::RequestError;
use relay_utils::MaybeConnectionError;
/// Result type used by Substrate client.
pub type Result<T> = std::result::Result<T, Error>;
/// Errors that can occur only when interacting with
/// a Substrate 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),
/// The response from the client could not be SCALE decoded.
ResponseParseFailed(codec::Error),
}
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.what().to_string(),
}
}
}