How to Use async-std as an Alternative to Tokio

Switch from Tokio to async-std by updating your Cargo.toml dependencies and replacing Tokio-specific macros and imports with their async-std equivalents.

Replace tokio with async-std in your Cargo.toml and update your imports to use async_std instead of tokio.

[dependencies]
async-std = { version = "1.12", features = ["attributes"] }

use async_std::task;

#[async_std::main]
async fn main() {
    println!("Hello from async-std!");
}

Add async-std to your Cargo.toml dependencies with the attributes feature enabled.
Replace #[tokio::main] with #[async_std::main] in your entry point.
Change all use tokio::... imports to use async_std::....
Run your application with cargo run to verify the switch.

async-std is a different engine that runs your asynchronous code, similar to how you might choose between a diesel or electric motor for a car. You use it when you prefer its specific design or need to avoid dependencies on Tokio. Switching involves changing the library name in your configuration and updating your code to import from the new library.