Add base datadog client

This adds a base HTTPoison Datadog Client library.

1 files changed, 15 insertions, 0 deletions

diff --git a/lib/exdatadog/config.ex b/lib/exdatadog/config.ex
new file mode 100644
index 0000000..f686309
--- /dev/null
+++ b/lib/exdatadog/config.ex
@@ -0,0 +1,15 @@
+defmodule Exdatadog.Config do
+  @moduledoc """
+  Provides helper functions for interacting with Application variables
+  """
+
+  def get_env_var(app, key, default \\ nil) do
+    app
+    |> Application.get_env(key, default)
+    |> case do
+      {:system, env_key} -> System.get_env(env_key)
+      env_var -> env_var
+    end
+  end
+
+end