binance/margin/
error.rs

1use serde::Deserialize;
2
3// Numeric error codes are universal across Binance products; the type lives
4// at the crate root. Re-exported here so `binance::margin::ErrorCode` resolves.
5pub use crate::ErrorCode;
6
7#[derive(Debug)]
8pub enum Error {
9    Api(ApiError),
10    Io(std::io::Error),
11    Msg(String),
12    Reqwest(reqwest::Error),
13    SerdeJson(serde_json::Error),
14    SerdeUrlEncoded(serde_urlencoded::ser::Error),
15    SerdePathToError(serde_path_to_error::Error<serde_json::Error>),
16}
17
18impl std::fmt::Display for Error {
19    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
20        match self {
21            Error::Api(error) => write!(f, "API error: code: {}, msg: {}", error.code, error.msg),
22            Error::Io(error) => write!(f, "I/O error: {error}"),
23            Error::Msg(msg) => write!(f, "{msg}"),
24            Error::Reqwest(error) => write!(f, "reqwest error: {error}"),
25            Error::SerdeJson(error) => write!(f, "serde_json error: {error}"),
26            Error::SerdeUrlEncoded(error) => write!(f, "serde_urlencoded error: {error}"),
27            Error::SerdePathToError(error) => write!(
28                f,
29                "serde_path_to_error error: path: {}, msg: {}",
30                error.path(),
31                error.inner()
32            ),
33        }
34    }
35}
36
37impl std::error::Error for Error {}
38
39/// Body shape Binance Margin returns on errors: `{"code":-XXXX,"msg":"..."}`.
40///
41/// `code` uses the shared [`crate::ErrorCode`] newtype — see its docs for
42/// the named constants and classification predicates. Margin-specific codes
43/// in the -3xxx range aren't classified by the shared predicates; use
44/// `code.raw()` to handle those.
45#[derive(Debug, Deserialize, PartialEq)]
46pub struct ApiError {
47    pub code: ErrorCode,
48    pub msg: String,
49}
50
51impl From<ApiError> for Error {
52    fn from(err: ApiError) -> Self {
53        Error::Api(err)
54    }
55}
56
57impl From<std::io::Error> for Error {
58    fn from(err: std::io::Error) -> Self {
59        Error::Io(err)
60    }
61}
62
63impl From<String> for Error {
64    fn from(msg: String) -> Self {
65        Error::Msg(msg)
66    }
67}
68
69impl From<&str> for Error {
70    fn from(msg: &str) -> Self {
71        Error::Msg(msg.to_string())
72    }
73}
74
75impl From<reqwest::Error> for Error {
76    fn from(err: reqwest::Error) -> Self {
77        Error::Reqwest(err)
78    }
79}
80
81impl From<serde_json::Error> for Error {
82    fn from(err: serde_json::Error) -> Self {
83        Error::SerdeJson(err)
84    }
85}
86
87impl From<serde_urlencoded::ser::Error> for Error {
88    fn from(err: serde_urlencoded::ser::Error) -> Self {
89        Error::SerdeUrlEncoded(err)
90    }
91}
92
93impl From<serde_path_to_error::Error<serde_json::Error>> for Error {
94    fn from(err: serde_path_to_error::Error<serde_json::Error>) -> Self {
95        Error::SerdePathToError(err)
96    }
97}
binance/margin/error.rs

binance/margin/
error.rs
