Hi all, Im facing the same error in akka-http 1.0
On Monday, March 16, 2015 at 12:16:37 AM UTC+1, Arthur Kushka wrote:
>
> Hi. I was faced with a typical error with spray-json and akka-http that
> easy to find in Google, but none of solutions helps me.
>
> Scala fail compiling in place where I parsing request body with `entity`
> directive. As error say, they can`t find implicit value for unmarshaller,
> but formatter and `SprayJsonSupport` are present in context (in
> documentation written that that`s enough).
>
> Below is compiler message and my code.
> Please help me with finding solution of this problem.
>
> [error] /home/arhelmus/techmedia/akka-http/src/main/scala/utils/
> CustomDirectives.scala:31: could not find implicit value for parameter um:
> akka.http.unmarshalling.FromRequestUnmarshaller[utils.Credentials]
> [error] entity(as[Credentials]).flatMap { credentials =>
>
>
> package utils
>
> import akka.http.marshallers.sprayjson.SprayJsonSupport
> import akka.http.server.Directive1
> import models.User
> import spray.json._
>
> case class Credentials(login: String, password: String)
>
> trait Protocols extends DefaultJsonProtocol {
> implicit val formatter: RootJsonFormat[Credentials] = jsonFormat2(
> Credentials.apply)
> }
>
> object CustomDirectives extends CustomDirectives
>
> trait CustomDirectives extends SprayJsonSupport with Protocols {
>
> import akka.http.server.directives.BasicDirectives._
> import akka.http.server.directives.MarshallingDirectives._
> import akka.http.server.directives.ParameterDirectives._
>
> def authenticateByToken: Directive1[User] =
> parameter("token").flatMap { code =>
> provide(User(code, "asdsada", "asdsadasd"))
> }
>
> def authenticateByCredentials: Directive1[User] = {
> entity(as[Credentials]).flatMap { credentials =>
> provide(User(credentials.login, credentials.login, credentials.
> password))
> }
> }
>
> }
>
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