adds rest api connector

- routing setup with path to message_controller
- messages api to database updated to function
  similar to a stack system (push, pop, peek, ..)
- rest calls the same as database calls
- setup default controller showing text message
- parsing database output with Jason to client
- adds curl examples

lib/bump_web/controllers/default_controller.ex

@@ -1,7 +1,7 @@
-defmodule BumpWeb.PageController do
+defmodule BumpWeb.DefaultController do
   use BumpWeb, :controller
 
   def index(conn, _params) do
-    render(conn, "index.html")
+    text conn, "Bump API"
   end
 end

lib/bump_web/controllers/message_controller.ex

@@ -0,0 +1,37 @@
+defmodule BumpWeb.MessageController do
+  use BumpWeb, :controller
+
+  alias Bump.Messages
+
+  def index(conn, _params) do
+    text conn, "Bump Api"
+  end
+
+  def list(conn, %{"sender" => sender, "minutes" => minutes}) do
+    list = Messages.list(sender, String.to_integer(minutes))
+    text conn, Jason.encode!(list)
+
+  end
+
+  def clear(conn, %{"sender" => sender}) do
+    Messages.clear(sender)
+    text conn, "OK"
+
+  end
+
+  def push(conn, %{"sender" => sender, "message" => message}) do
+    Messages.push(sender, message)
+    text conn, "OK"
+
+  end
+
+  def pop(conn, %{"sender" => sender}) do
+    message = Messages.pop(sender)
+    text conn, Jason.encode!(message)
+  end
+
+  def peak(conn, %{"sender" => sender}) do
+    message = Messages.peak(sender)
+    text conn, Jason.encode!(message)
+  end
+end