February 2018
Intermediate to advanced
552 pages
13h 46m
English
Content preview from Scala Reactive Programming
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Scala Future API combinators
The Scala Future API supports a couple of Scala combinators to ease the way of extracting values from a Future or a Promise object.
Let's explore some of the useful and important Scala Future API combinators in this section:
- map
- flatMap
- recover
- filter
Let's explore Scala Future API combinators with some simple examples here:
scala> import scala.concurrent.Promiseimport scala.concurrent.Promisescala> import scala.concurrent.ExecutionContext.Implicits.globalimport scala.conct.ExecutionContext.Implicits.globalscala> val cityPromise = Promise[String]()cityPromise: scala.concurrent.Promise[String] = scala.concurrent.impl.Promise$DefaultPromise@7d07e6aascala> cityPromise.success("Hyderabad")res13: cityPromise.type ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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