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nautilus_kraken/http/
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 for Kraken HTTP client operations.
17
18use thiserror::Error;
19
20#[derive(Debug, Clone, Error)]
21pub enum KrakenHttpError {
22    #[error("Network error: {0}")]
23    NetworkError(String),
24
25    #[error("API error: {}", format_api_errors(.0))]
26    ApiError(Vec<String>),
27
28    #[error("Parse error: {0}")]
29    ParseError(String),
30
31    #[error("Authentication error: {0}")]
32    AuthenticationError(String),
33
34    #[error("Missing credentials")]
35    MissingCredentials,
36}
37
38/// Formats API error messages, handling empty error arrays.
39fn format_api_errors(errors: &[String]) -> String {
40    if errors.is_empty() {
41        "unknown error (empty error list)".to_string()
42    } else {
43        errors.join(", ")
44    }
45}
46
47impl From<anyhow::Error> for KrakenHttpError {
48    fn from(err: anyhow::Error) -> Self {
49        Self::NetworkError(err.to_string())
50    }
51}