bybit/
errors.rs

1/// This module contains the definitions for BybitContentError and BybitError, two custom error types.
2/// BybitContentError is a struct that represents the error returned by the Bybit API, and BybitError is
3/// an enum that can hold any possible error that can occur during the execution of the program.
4use serde::Deserialize;
5use std::fmt;
6use thiserror::Error;
7/// BybitContentError is a struct that represents the error returned by the Bybit API.
8/// It has two fields: code, which is an i16 representing the error code, and msg, which is a String
9/// representing the error message.
10#[derive(Debug, Deserialize)]
11pub struct BybitContentError {
12    pub code: i16,
13    pub msg: String,
14}
15
16/// BybitError is an enum that can hold any possible error that can occur during the execution of the program.
17/// It has several variants, each representing a different type of error.
18#[derive(Debug, Error)]
19pub enum BybitError {
20    /// BybitError variant that holds a BybitContentError. This is used when the error returned by the Bybit API
21    /// is of the type BybitContentError.
22    #[error("Bybit error: {0}")]
23    BybitError(BybitContentError),
24
25    /// KlineValueMissingError variant that holds the index of the missing value, and the name of the missing value.
26    /// This variant is used when a value in a kline vector is missing.
27    #[error("Invalid Vec for Kline: {name} at {index} is missing")]
28    KlineValueMissingError { index: usize, name: &'static str },
29
30    /// Variants that hold the error returned by reqwest, serde_json, tokio_tungstenite, and std libraries.
31    /// These variants are used when the respective library returns an error.
32    #[error(transparent)]
33    ReqError(#[from] reqwest::Error),
34
35    #[error(transparent)]
36    InvalidHeaderError(#[from] reqwest::header::InvalidHeaderValue),
37
38    #[error(transparent)]
39    IoError(#[from] std::io::Error),
40
41    #[error(transparent)]
42    ParseFloatError(#[from] std::num::ParseFloatError),
43
44    #[error(transparent)]
45    UrlParserError(#[from] url::ParseError),
46
47    #[error(transparent)]
48    Json(#[from] serde_json::Error),
49
50    #[error(transparent)]
51    Tungstenite(#[from] tokio_tungstenite::tungstenite::Error),
52
53    #[error(transparent)]
54    TimestampError(#[from] std::time::SystemTimeError),
55
56    #[error(transparent)]
57    SerdeError(#[from] serde::de::value::Error),
58
59    // Variants representing common errors.
60    #[error("Internal Server Error")]
61    InternalServerError,
62
63    #[error("Service Unavailable")]
64    ServiceUnavailable,
65
66    #[error("Unauthorized")]
67    Unauthorized,
68
69    /// StatusCode variant that holds the status code.
70    #[error("Status Code")]
71    StatusCode(u16),
72
73    /// Base variant that holds a String representing the error.
74    /// This variant is used when the error is not of any specific type, and it is just a simple String.
75    #[error("Bybit error: {0}")]
76    Base(String),
77}
78
79// Implement the fmt::Display trait for BybitContentError.
80// This trait is used to specify how BybitContentError should be converted to a string.
81impl fmt::Display for BybitContentError {
82    // This method takes a mutable reference to a fmt::Formatter, and returns a fmt::Result.
83    // It writes the `msg` field of the BybitContentError struct to the given formatter.
84    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
85        // Implement this method to dictate how BybitContentError should be converted to a string.
86        // This is a placeholder implementation that simply writes the `msg` field; you should
87        // replace it with your own format string.
88        write!(f, "{}", self.msg)
89    }
90}
91
92// Implement the From trait for String and BybitError.
93// This trait is used to specify how a String can be converted to BybitError.
94impl From<std::string::String> for BybitError {
95    // This function takes a String, and returns a BybitError.
96    fn from(err: String) -> Self {
97        //
98        // Convert the String error to BybitError here
99        // For example, you can return a new instance of BybitError with the error message
100        BybitError::new(err)
101    }
102}
103
104impl BybitError {
105    fn new(arg: String) -> Self {
106        BybitError::Base(arg)
107    }
108}