What are some examples of using async in Rust?

What are some examples of using async in Rust?

In Rust, you can use the async keyword to define asynchronous functions. For example, you can create an async function to fetch data from a web API.

Can you show me a simple code example?

Sure! Here's a basic example:

use reqwest;

#[tokio::main]
async fn main() {
    let response = reqwest::get("https://api.example.com/data").await.unwrap();
    let body = response.text().await.unwrap();
    println!("Response: {}", body);
}

What do I need to run this code?

You'll need to add the tokio and reqwest crates to your Cargo.toml file. Make sure to enable the full feature for reqwest.

Are there any other async libraries I should know about?

Yes, besides reqwest, you might want to explore async-std and tokio for asynchronous programming in Rust.