Make Mailtrap client dynamic

Author: kalys

lib/mailtrap.ex

@@ -5,9 +5,19 @@ defmodule Mailtrap do
 
   use Tesla
 
-  plug(Mailtrap.DirectResponse)
-  plug(Tesla.Middleware.JSON)
-  plug(Tesla.Middleware.PathParams)
-  plug(Tesla.Middleware.BaseUrl, "https://mailtrap.io/api")
-  plug(Tesla.Middleware.BearerAuth, token: Application.get_env(:mailtrap, :api_token))
+  @doc """
+  Generates client
+  """
+  @spec client(String.t()) :: Tesla.Client.t()
+  def client(token) do
+    middleware = [
+      Mailtrap.DirectResponse,
+      Tesla.Middleware.JSON,
+      Tesla.Middleware.PathParams,
+      {Tesla.Middleware.BaseUrl, "https://mailtrap.io/api"},
+      {Tesla.Middleware.BearerAuth, token: token}
+    ]
+
+    Tesla.client(middleware)
+  end
 end

test/mailtrap_test.exs

@@ -8,7 +8,8 @@ defmodule Mailtrap.APITest do
         json(%{error: "Incorrect API token"}, status: 401)
     end)
 
-    assert {:error, %Tesla.Env{status: 401, body: body}} = Mailtrap.get("accounts")
+    client = Mailtrap.client("")
+    assert {:error, %Tesla.Env{status: 401, body: body}} = Mailtrap.get(client, "accounts")
     assert %{"error" => "Incorrect API token"} == body
   end
 
@@ -18,7 +19,9 @@ defmodule Mailtrap.APITest do
         json([%{"access_levels" => [100], "id" => 11_111, "name" => "John Doe"}])
     end)
 
+    client = Mailtrap.client("API_TOKEN")
+
     assert {:ok, [%{"name" => "John Doe", "id" => 11_111, "access_levels" => [100]}]} =
-             Mailtrap.get("accounts")
+             Mailtrap.get(client, "accounts")
   end
 end