akka-http with multiple route configurations

Question

Quick Background

I am running through some examples learning the Akka HTTP stack for creating a new REST project (completely non-UI). I have been using and augmenting

Answer 1

Problem 1 - combine routes in multiple files

You can combine routes from multiple files quite easy.

FooRouter.scala

object FooRouter {
   val route = path("foo") {
       complete {
          Ok -> "foo"
       } 
   }       
}

BarRouter.scala

object BarRouter {
   val route = path("bar") {
       complete {
          Ok -> "bar"
       } 
   }       
}

MainRouter.scala

import FooRouter
import BarRouter
import akka.http.scaladsl.server.Directives._
import ...

object MainRouter {
   val routes = FooRouter.route ~ BarRouter.route
}

object AkkaHttpMicroservice extends App with Service {
  ...    
  Http().bindAndHandle(MainRouter.routes, config.getString("http.interface"), config.getInt("http.port"))
}

Here you have have some docs :

• http://doc.akka.io/docs/akka-http/current/scala/http/routing-dsl/overview.html
• http://doc.akka.io/docs/akka-http/current/scala/http/routing-dsl/routes.html

Problem 2 - seprate routing, marshalling, etc

Yes, you can separate routing, marshalling and application logic. Here you have activator example: https://github.com/theiterators/reactive-microservices

Problem 3 - handle routes using annotations

I don't know any lib that allow you to use annotion to define routing in akka-http. Try to learn more about DSL routing. This represents a different approach to http routing but it is convenient tool too.