Rust Concurrency Development Tutorials, Guides & Insights

In your code:

use rand::Rng;

fn main() {
    let mut rng = rand::thread_rng();
    let n: u8 =

 rng.gen();
    println!("Random number: {}", n);
}

An async function in Rust is a function that returns a Future. A Future is a value that represents a computation that may not have completed yet. By marking a function as async, you tell the Rust compiler that the function contains asynchronous operations.

async fn fetch_data(url: &str) -> Result<String, reqwest::Error> {
    let response = reqwest::get(url).await?;
    let body = response.text().await?;
    Ok(body)
}