Add logger

issues/config/config.exs

@@ -1,3 +1,5 @@
 use Mix.Config
 
 config :issues, github_url: "https://api.github.com"
+
+config :logger, compile_time_purge_level: :info

issues/lib/issues/github_issues.ex

@@ -1,10 +1,14 @@
 defmodule Issues.GithubIssues do
+
+  require Logger
   
   @user_agent [ { "User-agent", "Elixir dave@pragprog.com" } ]
   # use a module attribute to fetch the value at compile time
   @github_url Application.get_env(:issues, :github_url)
   
   def fetch(user, project) do
+    Logger.info("Fetching #{user}'s project #{project}")
+
     issues_url(user, project)
     |> HTTPoison.get(@user_agent)
     |> handle_response 
@@ -15,6 +19,8 @@ defmodule Issues.GithubIssues do
   end
 
   def handle_response( {:ok, %{status_code: status_code, body: body}} ) do
+    Logger.info("Got response: status code=#{status_code}")
+    Logger.debug(fn -> inspect(body) end)
     {
       status_code |> check_for_error(),
       body |> Poison.Parser.parse!()