(mvp)

modules/analytics/app/controllers/analytics/v0/analytics_controller.rb

@@ -1,11 +1,18 @@
 module Analytics
   module V0
     class AnalyticsController < ApplicationController
-      skip_before_action :authenticate
-
+      before_action :authenticate
       def index
-        data = { hello: 'world', salt: Settings.analytics.unique_user.salt }
-        render json: data
+        return unless current_user
+        render json: {
+          user_fingerprint: get_user_fingerprint(current_user.uuid)
+        }
+      end
+
+      private 
+
+      def get_user_fingerprint(user_property)
+        Digest::SHA256.hexdigest("#{Settings.analytics.unique_user.salt}#{user_property}")
       end
     end
   end

modules/analytics/spec/request/v0/analytics_request_spec.rb

@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe 'V0::Analytics', type: :request do
+  before do
+    sign_in_as(current_user)
+  end
+
+  describe 'GET `index`' do
+    let(:current_user) { build(:user, :loa3, icn: '123498767V234859', uuid:'test-guid') }
+
+    it 'returns things' do
+      get '/analytics/v0/user/hashes'
+      expect(response).to have_http_status(:ok)
+      expect(JSON.parse(response.body)).to eq({ 'user_fingerprint' => 'e867710d806a3533f0843405c3ba9bdd0769b2ff84fcce8f75e6b64a406e70c3' })
+    end
+
+
+  end
+end