Build domain specific languages (DSLs) using Java\'s most popular functional programming language: Scala. This book introduces the basics of Scala and DSLs using a series of practical examples. In Practical Scala DSLs, you\'ll learn to create pragmatic and complete code examples that explain the actual use of DSLs with Scala: a web API and microservices; a custom language; a mobile app; a Forex system; a game; and cloud applications. At the end of this unique book, you\'ll be able to describe the differences between external and internal DSLs; understand when and how to apply DSLs; create DSLs using Scala; and even create a DSL using another programming language.What You\'ll LearnBuild DSLs in ScalaWrite a web API and microservicesCreate a custom languageApply DSLs to mobile apps development, a Forex trading system, game development, and moreDiscover the role of DSLs in cloud development Integrate DSLs as part of a DevOps program or structureBuild internal and external DSLsWho This Book Is ForExperienced Java coders with at least some prior experience with Scala. You may be new to DSLs. 22 Illustrations, color; 9 Illustrations, black and white; XV, 226 p. 31 illus., 22 illus. in color.