stateful server 1

lib/pledge_controller.ex

@@ -0,0 +1,18 @@
+defmodule Servy.PledgeController do
+  alias Servy.Conv
+  alias Servy.PledgeServer
+
+  def create(conv, %{"name" => name, "amount" => amount}) do
+    # sends pledge to the external service and caches it
+    PledgeServer.create_pledge(name, String.to_integer(amount))
+
+    %{conv | status: 201, resp_body: "#{name} pledged #{amount}!"}
+  end
+
+  def index(conv) do
+    # get recent pledges from cache
+    pledges = PledgeServer.recent_pledges()
+
+    %{Conv | status: 200, resp_body: inspect(pledges)}
+  end
+end

lib/pledge_server.ex

@@ -0,0 +1,10 @@
+defmodule Servy.PledgeServer do
+  def create_pledge(name, amount) do
+    {:ok, id} = send_pledge_to_service(name, amount)
+  end
+
+  defp send_pledge_to_service(_name, _amount) do
+    # CODE GOES HERE TO SEND PLEDGE TO EXTERNAL SERVICE
+    {:ok, "pledge-#{:rand.uniform(1000)}"}
+  end
+end