Macro error 

macro_rules! error {
    ($($arg:tt)+) => { ... };
}

Log an error message using format string syntax

Examples

use nonblocking_logger::{error, error_with, Logger};

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let error_code = 500;
     
    // Using global logger
    error!("Server error: {}", error_code)?;
     
    // Using specific logger
    let logger = Logger::new().stdout();
    error_with!(logger, "Server error: {}", error_code)?;
     
    Ok(())
}