Add base datadog client

This adds a base HTTPoison Datadog Client library.

1 files changed, 33 insertions, 0 deletions

diff --git a/lib/exdatadog/client.ex b/lib/exdatadog/client.ex
new file mode 100644
index 0000000..02c1017
--- /dev/null
+++ b/lib/exdatadog/client.ex
@@ -0,0 +1,33 @@
+defmodule Exdatadog.Client do
+  @moduledoc """
+  Datadog Client record for endpoint and authentication data
+  """
+
+  import Exdatadog.Config, only: [get_env_var: 2]
+
+  defstruct auth: nil, endpoint: "https://app.datadoghq.com/"
+
+  @type auth :: %{api_key: binary, app_key: binary} | %{api_key: binary}
+  @type t :: %__MODULE__{auth: auth, endpoint: binary}
+
+  @spec new() :: t
+  def new() do
+    auth = %{api_key: get_env_var(:exdatadog, :api_key),
+             app_key: get_env_var(:exdatadog, :app_key)}
+    %__MODULE__{auth: auth}
+  end
+
+  @spec new(auth) :: t
+  def new(auth), do: %__MODULE__{auth: auth}
+
+  @spec new(auth, binary) :: t
+  def new(auth, endpoint) do
+    endpoint = if String.ends_with?(endpoint, "/") do
+      endpoint
+    else
+      endpoint <> "/"
+    end
+    %__MODULE__{auth: auth, endpoint: endpoint}
+  end
+
+end