Group Endpoints

group.scala

scala> trait Foo1; trait Foo2
defined trait Foo1
defined trait Foo2

scala> trait Bar1; trait Bar2;
defined trait Bar1
defined trait Bar2

scala> object Foo {
     | val endpoints = Endpoint(Ok(new Foo1{})) :+: Endpoint(Ok(new Foo2{}))
     | }
defined object Foo

scala> object Bar {
     | val endpoints = Endpoint(Ok(new Bar1{})) :+: Endpoint(Ok(new Bar2{}))
     | }
defined object Bar

scala> val all = Foo.endpoints :+: Bar.endpoints
all: io.finch.Endpoint[shapeless.:+:[Foo1,shapeless.:+:[Foo2,shapeless.:+:[Bar1,shapeless.:+:[Bar2,shapeless.CNil]]]]] = ((|)|(|))

scala> all.toService
<console>:36: error: You can only convert a router into a Finagle service if the result type of the router is one of the following:

  * A Response
  * A value of a type with an EncodeResponse instance
  * A coproduct made up of some combination of the above

shapeless.:+:[Foo1,shapeless.:+:[Foo2,shapeless.:+:[Bar1,shapeless.:+:[Bar2,shapeless.CNil]]]] does not satisfy the requirement. You may need to provide an EncodeResponse instance for shapeless.:+:[Foo1,shapeless.:+:[Foo2,shapeless.:+:[Bar1,shapeless.:+:[Bar2,shapeless.CNil]]]] (or for some  part of
shapeless.:+:[Foo1,shapeless.:+:[Foo2,shapeless.:+:[Bar1,shapeless.:+:[Bar2,shapeless.CNil]]]]).

       all.toService
           ^