Scala Reactive Programming

Scala Async API

The Scala Async object is defined in the scala.async package. It has the following two functions:

object Async {  def async[T](body: => T)(implicit execContext: ExecutionContext): Future[T]  def await[T](awaitable: Future[T]): T}

The async function is similar to the apply function of the Future object. It takes an asynchronous computation as input and returns a Future object.

The await function takes a future object as input and returns that Future's value. It does not block the underlying thread that executes that computation logic.

An example of the Scala Async API:

1. Create a Scala SBT Project, scala-async-app.
2. Add the Scala Async library to the build.sbt file:

      name := "scala-async-app"      version := "1.0.0" scalaVersion := ...