crypto_exc_all 0.1.1

Unified cryptocurrency exchange SDK facade
Documentation 
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use serde::{Deserialize, Serialize};
use std::fmt;
use std::str::FromStr;

#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Serialize, Deserialize)]
#[serde(rename_all = "snake_case")]
pub enum ExchangeId {
    Okx,
    Binance,
    Bitget,
}

impl ExchangeId {
    pub fn as_str(self) -> &'static str {
        match self {
            Self::Okx => "okx",
            Self::Binance => "binance",
            Self::Bitget => "bitget",
        }
    }
}

impl fmt::Display for ExchangeId {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        f.write_str(self.as_str())
    }
}

impl FromStr for ExchangeId {
    type Err = String;

    fn from_str(value: &str) -> std::result::Result<Self, Self::Err> {
        match value.trim().to_ascii_lowercase().as_str() {
            "okx" => Ok(Self::Okx),
            "binance" => Ok(Self::Binance),
            "bitget" => Ok(Self::Bitget),
            other => Err(format!("unsupported exchange: {other}")),
        }
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn parses_bitget_exchange_id() {
        assert_eq!("bitget".parse::<ExchangeId>().unwrap(), ExchangeId::Bitget);
        assert_eq!(ExchangeId::Bitget.as_str(), "bitget");
    }
}