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nautilus_okx/websocket/
error.rs

1// -------------------------------------------------------------------------------------------------
2//  Copyright (C) 2015-2026 Nautech Systems Pty Ltd. All rights reserved.
3//  https://nautechsystems.io
4//
5//  Licensed under the GNU Lesser General Public License Version 3.0 (the "License");
6//  You may not use this file except in compliance with the License.
7//  You may obtain a copy of the License at https://www.gnu.org/licenses/lgpl-3.0.en.html
8//
9//  Unless required by applicable law or agreed to in writing, software
10//  distributed under the License is distributed on an "AS IS" BASIS,
11//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12//  See the License for the specific language governing permissions and
13//  limitations under the License.
14// -------------------------------------------------------------------------------------------------
15
16//! Error types produced by the OKX WebSocket client implementation.
17
18use nautilus_network::error::SendError;
19use thiserror::Error;
20use tokio_tungstenite::tungstenite;
21
22/// A typed error enumeration for the OKX WebSocket client.
23#[derive(Debug, Clone, Error)]
24pub enum OKXWsError {
25    #[error("Parsing error: {0}")]
26    ParsingError(String),
27    /// Errors returned directly by OKX (non-zero code).
28    #[error("OKX error {error_code}: {message}")]
29    OkxError { error_code: String, message: String },
30    /// Failure during JSON serialization/deserialization.
31    #[error("JSON error: {0}")]
32    JsonError(String),
33    #[error("Client error: {0}")]
34    ClientError(String),
35    #[error("No active WebSocket client")]
36    NoActiveClient,
37    #[error("Handler not available: {0}")]
38    HandlerUnavailable(String),
39    /// A typed failure from the shared WebSocket send boundary.
40    #[error("WebSocket send error: {0}")]
41    TransportSend(#[from] SendError),
42    /// A send failure whose delivery outcome is unknown.
43    #[error("Send failed: {0}")]
44    SendFailed(String),
45    #[error("Operation timed out after {timeout_ms}ms")]
46    OperationTimeout { timeout_ms: u64 },
47    #[error("Authentication error: {0}")]
48    AuthenticationError(String),
49    /// Wrapping the underlying `HttpClientError` from the network crate.
50    // #[error("Network error: {0}")]
51    // WebSocketClientError(WebSocketClientError),  // TODO: Implement Debug
52    /// WebSocket transport error.
53    #[error("Tungstenite error: {0}")]
54    TungsteniteError(String),
55}
56
57impl From<tungstenite::Error> for OKXWsError {
58    fn from(error: tungstenite::Error) -> Self {
59        Self::TungsteniteError(error.to_string())
60    }
61}
62
63impl From<String> for OKXWsError {
64    fn from(msg: String) -> Self {
65        Self::AuthenticationError(msg)
66    }
67}