Create device controller with and API to create a device

- Turn of assets and helper generation automatically

spec/controllers/devices_controller_spec.rb

@@ -0,0 +1,14 @@
+require 'rails_helper'
+
+RSpec.describe DevicesController, type: :controller do
+
+  describe "POST #create" do
+    it "creates a device" do
+      expect {
+        post :create, device: attributes_for(:device), format: :json
+      }.to change{ Device.count }.by(1)
+      #expect(response).to have_http_status(:success)
+    end
+  end
+
+end