bybit-rust-api 0.3.0

use hex;
use hmac::{Hmac, Mac};
use sha2::Sha256;
use std::time::SystemTime;

type HmacSha256 = Hmac<Sha256>;

pub fn millis() -> u128 {
    SystemTime::now()
        .duration_since(SystemTime::UNIX_EPOCH)
        .unwrap()
        .as_millis()
}

pub fn sign(secret: &str, msg: &str) -> String {
    hex::encode(
        HmacSha256::new_from_slice(secret.as_bytes())
            .expect("HMAC can take key of any size")
            .chain_update(msg.as_bytes())
            .finalize()
            .into_bytes(),
    )
}

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

    #[test]
    fn test_milliseconds() {
        assert!(millis() > 0);
    }

    #[test]
    fn test_sign() {
        assert_eq!(
            sign("secret", "message"),
            String::from("8b5f48702995c1598c573db1e21866a9b825d4a794d169d7060a03605796360b")
        );
    }
}