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spray

spray is a lightweight Scala framework for building RESTful web services on top of Akka actors and Akka Mist. It sports the following main features:

• Completely asynchronous, non-blocking, actor-based request handling for efficiently handling very high numbers of concurrent connections
• Powerful, flexible and extensible internal Scala DSL for declaratively defining your web service behavior
• Immutable model of the HTTP protocol, decoupled from the underlying servlet container
• Full testability of your REST services, without the need to fire up containers or actors

Minimal Example

import cc.spray._

trait HelloServiceBuilder extends ServiceBuilder {
  val helloService = {
    path("hello") {
      get { _.complete(<h1>Say hello to Spray</h1>) }
    }
  }
}

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License

spray is released under the Apache License 2.0