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Implementing Async Programming in Rust: Exploring async and await

Tutorial August 27, 2024
rust

use std::future::Future;

fn my_future() -> impl Future<Output = i32> {
    async {
        // Simulate some asynchronous computation
        42
    }
}

async fn main() {
    let result = my_future().await;
    println!("The answer is {}", result);
}
  • A Future represents a computation that will eventually produce a value.
  • Rust’s Future is lazy, meaning it won’t do anything until it’s awaited.