async-book/src/06_multiple_futures/04_spawning.md

Spawning

Spawning allows you to run a new asynchronous task in the background. This allows us to continue executing other code while it is running.

Say we have a web server that wants to accept connections without blocking the main thread. To achieve this, we can use the async_std::task::spawn function to create and run a new task that handles the connections. This function takes a future and returns a JoinHandle, which can be used to wait for the result of the task once it's completed.

{{#include ../../examples/06_04_spawning/src/lib.rs:example}}

To communicate between the main task and the spawned task, we can use channels provided by the used async runtime.