add a sample AuthorizationServer to the repo and put traffic-police app in a separate folder

React/traffic-police/src/reducers/authReducer.js

@@ -0,0 +1,38 @@
+import {
+  USER_SIGNED_OUT,
+  STORE_USER_ERROR,
+  USER_EXPIRED,
+  STORE_USER,
+  LOADING_USER
+} from '../actions/types'
+
+const initialState = {
+  user: null,
+  isLoadingUser: false
+};
+
+export default function (state = initialState, action) {
+  switch (action.type) {
+    case STORE_USER:
+      return {
+        ...state,
+        isLoadingUser: false,
+        user: action.payload
+      }
+    case LOADING_USER:
+      return {
+        ...state,
+        isLoadingUser: true
+      }
+    case USER_EXPIRED:
+    case STORE_USER_ERROR:
+    case USER_SIGNED_OUT:
+      return {
+        ...state,
+        user: null,
+        isLoadingUser: false
+      }
+    default:
+      return state
+  }
+}

React/traffic-police/src/reducers/index.js

@@ -0,0 +1,6 @@
+import { combineReducers } from 'redux';
+import authReducer from './authReducer';
+
+export default combineReducers({
+  auth: authReducer
+})