By Raymond Roestenburg
Akka is a Scala-based toolkit that simplifies constructing concurrent allotted purposes. ideal for high-volume purposes that have to scale quickly, Akka is a good starting place for event-driven structures that are looking to scale elastically up and out on call for, either on multi-core processors and throughout server nodes.
Akka in motion is a complete instructional on development message-oriented structures utilizing Akka. The ebook takes a hands-on process, the place every one new suggestion is via an instance that indicates the way it works, how you can enforce the code, and the way to check it. Readers will discover a message-oriented event-driven software in Akka and in addition take on key concerns like tips on how to version immutable messages and area versions, and observe styles like occasion Sourcing, and CQRS. The publication concludes with sensible suggestion on the best way to song and customise a method equipped with Akka.
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Additional resources for Akka in Action
The last line in the Main class actually starts the server and binds it to a host and port. The App uses the following messages internally between the actors: REST Interface Message Classes case class Event(event:String, nrOfTickets:Int) case object GetEvents case class Events(events:List[Event]) case object EventCreated ©Manning Publications Co. We welcome reader comments about anything in the manuscript - other than typos and other simple mistakes. These will be cleaned up during production of the book by copyeditors and proofreaders.
These will be cleaned up during production of the book by copyeditors and proofreaders. io/") The resolvers is just a list of maven repositories that will be resolved by SBT. As you can see, we have added the Typesafe and Spray repositories (the build tool will download all the libraries from them). 1" % "test" ) } The version of Akka we are using The akka actor module dependency The libraryDependencies is just a list of dependencies that SBT will get from the specified maven repositories. Every dependency points to a maven artifact in the format organization % module % version (the %% is for automatically using ©Manning Publications Co.
We welcome reader comments about anything in the manuscript - other than typos and other simple mistakes. These will be cleaned up during production of the book by copyeditors and proofreaders. com> 44 You should see something like the following response: Creating damp-bayou-9575... git We need to add a couple of things to our project so Heroku understands how to build our code. 2 This file needs to specify which version of SBT you are using. 3" ) This file registers all the plugins we have been using so far.