mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-05-06 21:58:06 +00:00
Niklas Adolfsson
106 lines
3.5 KiB
Rust
106 lines
3.5 KiB
Rust
// Copyright 2019-2021 Parity Technologies (UK) Ltd.
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// This file is part of Parity Bridges Common.
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// Parity Bridges Common 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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// Parity Bridges Common 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 Parity Bridges Common. If not, see <http://www.gnu.org/licenses/>.
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//! Substrate node RPC errors.
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use jsonrpsee_ws_client::Error as RpcError;
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use relay_utils::MaybeConnectionError;
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use sc_rpc_api::system::Health;
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/// Result type used by Substrate client.
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pub type Result<T> = std::result::Result<T, Error>;
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/// Errors that can occur only when interacting with
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/// a Substrate node through RPC.
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#[derive(Debug)]
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pub enum Error {
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/// An error that can occur when making a request to
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/// an JSON-RPC server.
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RpcError(RpcError),
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/// The response from the server could not be SCALE decoded.
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ResponseParseFailed(codec::Error),
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/// The Substrate bridge pallet has not yet been initialized.
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UninitializedBridgePallet,
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/// Account does not exist on the chain.
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AccountDoesNotExist,
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/// Runtime storage is missing mandatory ":code:" entry.
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MissingMandatoryCodeEntry,
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/// The client we're connected to is not synced, so we can't rely on its state.
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ClientNotSynced(Health),
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/// An error has happened when we have tried to parse storage proof.
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StorageProofError(bp_runtime::StorageProofError),
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/// Custom logic error.
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Custom(String),
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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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Self::RpcError(ref e) => Some(e),
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Self::ResponseParseFailed(ref e) => Some(e),
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Self::UninitializedBridgePallet => None,
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Self::AccountDoesNotExist => None,
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Self::MissingMandatoryCodeEntry => None,
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Self::ClientNotSynced(_) => None,
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Self::StorageProofError(_) => None,
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Self::Custom(_) => None,
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}
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}
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}
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impl From<RpcError> for Error {
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fn from(error: RpcError) -> Self {
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Error::RpcError(error)
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}
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}
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impl MaybeConnectionError for Error {
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fn is_connection_error(&self) -> bool {
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matches!(
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*self,
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Error::RpcError(RpcError::TransportError(_))
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// right now if connection to the ws server is dropped (after it is already established),
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// we're getting this error
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| Error::RpcError(RpcError::Internal(_))
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| Error::RpcError(RpcError::RestartNeeded(_))
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| Error::ClientNotSynced(_),
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)
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}
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}
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impl std::fmt::Display for Error {
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fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
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let s = match self {
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Self::RpcError(e) => e.to_string(),
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Self::ResponseParseFailed(e) => e.to_string(),
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Self::UninitializedBridgePallet => "The Substrate bridge pallet has not been initialized yet.".into(),
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Self::AccountDoesNotExist => "Account does not exist on the chain".into(),
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Self::MissingMandatoryCodeEntry => "Mandatory :code: entry is missing from runtime storage".into(),
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Self::StorageProofError(e) => format!("Error when parsing storage proof: {:?}", e),
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Self::ClientNotSynced(health) => format!("Substrate client is not synced: {}", health),
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Self::Custom(e) => e.clone(),
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};
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write!(f, "{}", s)
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}
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}
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impl From<Error> for String {
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fn from(error: Error) -> String {
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error.to_string()
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}
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}
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