Add http4s (#359)

* Added scala/http4s. Closes #336

* minor

* add http4s on framework list

neph.yaml

@@ -94,6 +94,7 @@ cpp:
 scala:
   dependencies:
     - akkahttp
+    - http4s
 
 csharp:
   dependencies:
@@ -344,6 +345,11 @@ akkahttp:
     - docker build -t akkahttp .
   directory: scala/akkahttp
 
+http4s:
+  commands:
+    - docker build -t http4s .
+  directory: scala/http4s
+
 aspnetcore:
   commands:
     - docker build -t aspnetcore .

scala/http4s/.gitignore

@@ -0,0 +1,4 @@
+target/
+project/project
+project/target
+*.class

scala/http4s/Dockerfile

@@ -0,0 +1,13 @@
+FROM bigtruedata/sbt
+
+WORKDIR /usr/src/app
+
+COPY build.sbt ./
+COPY src src
+COPY project project
+
+RUN sbt assembly
+
+EXPOSE 3000
+
+CMD java -jar target/scala-2.12/*assembly*.jar

scala/http4s/build.sbt

@@ -0,0 +1,15 @@
+val Http4sVersion = "0.18.17"
+
+lazy val root = (project in file("."))
+  .settings(
+    organization := "the.benchmarker",
+    name := "http4s",
+    version := "0.0.1-SNAPSHOT",
+    scalaVersion := "2.12.6",
+    libraryDependencies ++= Seq(
+      "org.http4s"      %% "http4s-blaze-server" % Http4sVersion,
+      "org.http4s"      %% "http4s-circe"        % Http4sVersion,
+      "org.http4s"      %% "http4s-dsl"          % Http4sVersion
+    )
+  )
+

scala/http4s/project/assembly.sbt

@@ -0,0 +1 @@
+addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "0.14.4")

scala/http4s/project/build.properties

@@ -0,0 +1,2 @@
+sbt.version=0.13.15
+

scala/http4s/src/main/scala/the/benchmarker/http4s/HelloWorldServer.scala

@@ -0,0 +1,24 @@
+package the.benchmarker.http4s
+
+import cats.effect.{Effect, IO}
+import fs2.StreamApp
+import org.http4s.server.blaze.BlazeBuilder
+
+import scala.concurrent.ExecutionContext
+
+object HelloWorldServer extends StreamApp[IO] {
+  import scala.concurrent.ExecutionContext.Implicits.global
+
+  def stream(args: List[String], requestShutdown: IO[Unit]) = ServerStream.stream[IO]
+}
+
+object ServerStream {
+
+  def helloWorldService[F[_]: Effect] = new HelloWorldService[F].service
+
+  def stream[F[_]: Effect](implicit ec: ExecutionContext) =
+    BlazeBuilder[F]
+      .bindHttp(3000, "0.0.0.0")
+      .mountService(helloWorldService, "/")
+      .serve
+}

scala/http4s/src/main/scala/the/benchmarker/http4s/HelloWorldService.scala

@@ -0,0 +1,20 @@
+package the.benchmarker.http4s
+
+import cats.effect.Effect
+import io.circe.Json
+import org.http4s.HttpService
+import org.http4s.dsl.Http4sDsl
+
+class HelloWorldService[F[_]: Effect] extends Http4sDsl[F] {
+
+  val service: HttpService[F] = {
+    HttpService[F] {
+      case GET -> Root =>
+        Ok("")
+      case POST -> Root / "user" =>
+        Ok("")
+      case GET -> Root / "user" / name =>
+        Ok(name)
+    }
+  }
+}

tools/src/benchmarker.cr

@@ -98,6 +98,7 @@ LANGS = [
   ]},
   {lang: "scala", targets: [
     {name: "akkahttp", repo: "akka/akka-http"},
+    {name: "http4s", repo: "http4s/http4s"},
   ]},
   {lang: "csharp", targets: [
     {name: "aspnetcore", repo: "aspnet/Home"},