Init code

.gitignore

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+.idea/
+micro-server.iml
+out/

src/Main.scala

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+import scala.util.matching.Regex
+
+/**
+  * @author René Vennik
+  * @version 1.0
+  * @since 22-12-2016
+  */
+object Main {
+
+  val contact: Regex = """\/contact\/?(.*)?""".r
+
+  def main(args: Array[String]): Unit = {
+    new Server({
+      case contact(Int(id)) => "Contact int " + id
+      case contact(String(name)) => "Contact string " + name
+      case contact(_*) => "Contact nothing"
+      case "/" => "Home"
+    }, 80)
+  }
+
+}

src/Server.scala

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+import java.net.InetSocketAddress
+
+import com.sun.net.httpserver.{HttpExchange, HttpHandler, HttpServer}
+
+import scala.util.Try
+
+class Server(routes: String => Any, val port: Int = 80) {
+
+  val server: HttpServer = HttpServer.create(new InetSocketAddress(port), 0)
+  val handler = new Handler(routes)
+  server.createContext("/", handler)
+  server.setExecutor(null)
+  server.start()
+
+}
+
+class Handler(val routes: String => Any) extends HttpHandler {
+
+  def handle(t: HttpExchange): Unit = {
+    Try(routes(t.getRequestURI.getPath).toString).toOption match {
+      case Some(response) => handleResponse(t, 200, response)
+      case _ => handleResponse(t, 404, "404 - Not Found")
+    }
+
+  }
+
+  def handleResponse(t: HttpExchange, rCode: Int, response: String): Unit = {
+    t.sendResponseHeaders(rCode, response.length())
+    val os = t.getResponseBody
+    os.write(response.getBytes)
+    os.close()
+  }
+
+}
+
+object Int {
+  def unapply(i: String): Option[Int] = Try(i.toInt).toOption
+}
+
+object String {
+  def unapply(s: String): Option[String] = Option(s)
+}