3 files changed, 29 insertions, 2 deletions
diff --git a/src/main/scala/xyz/driver/core/rest/DnsDiscovery.scala b/src/main/scala/xyz/driver/core/rest/DnsDiscovery.scala
new file mode 100644
index 0000000..38880d4
--- /dev/null
+++ b/src/main/scala/xyz/driver/core/rest/DnsDiscovery.scala
@@ -0,0 +1,11 @@
+package xyz.driver.core
+package rest
+
+class DnsDiscovery(transport: HttpRestServiceTransport, overrides: Map[String, String]) {
+
+  def discover[A](implicit descriptor: ServiceDescriptor[A]): A = {
+    val url = overrides.getOrElse(descriptor.name, s"https://{descriptor.name}")
+    descriptor.connect(transport, url)
+  }
+
+}
diff --git a/src/main/scala/xyz/driver/core/rest/HttpRestServiceTransport.scala b/src/main/scala/xyz/driver/core/rest/HttpRestServiceTransport.scala
index e60998f..e31635b 100644
--- a/src/main/scala/xyz/driver/core/rest/HttpRestServiceTransport.scala
+++ b/src/main/scala/xyz/driver/core/rest/HttpRestServiceTransport.scala
@@ -17,8 +17,8 @@ import scala.util.{Failure, Success}
 class HttpRestServiceTransport(
     applicationName: Name[App],
     applicationVersion: String,
-    actorSystem: ActorSystem,
-    executionContext: ExecutionContext,
+    val actorSystem: ActorSystem,
+    val executionContext: ExecutionContext,
     reporter: Reporter)
     extends ServiceTransport {
 
diff --git a/src/main/scala/xyz/driver/core/rest/ServiceDescriptor.scala b/src/main/scala/xyz/driver/core/rest/ServiceDescriptor.scala
new file mode 100644
index 0000000..646fae8
--- /dev/null
+++ b/src/main/scala/xyz/driver/core/rest/ServiceDescriptor.scala
@@ -0,0 +1,16 @@
+package xyz.driver.core
+package rest
+import scala.annotation.implicitNotFound
+
+@implicitNotFound(
+  "Don't know how to communicate with service ${S}. Make sure an implicit ServiceDescriptor is" +
+    "available. A good place to put one is in the service's companion object.")
+trait ServiceDescriptor[S] {
+
+  /** The service's name. Must be unique among all services. */
+  def name: String
+
+  /** Get an instance of the service. */
+  def connect(transport: HttpRestServiceTransport, url: String): S
+
+}