completed user info persistence

Author: naji247

App.js

@@ -4,7 +4,7 @@ import { View, Text, AsyncStorage } from "react-native";
 import { compose, applyMiddleware, createStore } from "redux";
 import logger from "redux-logger";
 import { persistStore, autoRehydrate } from "redux-persist";
-
+import { initializeAuth } from "./src/actions/authActions";
 import AppReducer from "./src/reducers";
 import AppWithNavigationState from "./src/navigators/AppNavigator";
 
@@ -21,7 +21,10 @@ export default class App extends React.Component {
   }
 
   componentWillMount() {
-    persistStore(store, { storage: AsyncStorage }, () => {
+    persistStore(store, { storage: AsyncStorage }, async () => {
+      const user = store.getState().auth.user;
+      const initializingAction = await initializeAuth(user);
+      store.dispatch(initializingAction);
       this.setState({ rehydrated: true });
     });
   }

src/actions/authActions.js

@@ -30,12 +30,31 @@ async function login() {
   }
 }
 
+async function initializeAuth(user) {
+  // Case 1: No prior logged in user
+  if (!user) {
+    return logoutAction();
+  }
+  const response = await fetch(
+    `https://graph.facebook.com/debug_token?input_token=${user.token}&access_token=${user.token}`
+  );
+  tokenInfo = await response.json();
+
+  // Case 2: Prior user data exists, but is outdated
+  if (!tokenInfo || !tokenInfo.data || !tokenInfo.data.is_valid) {
+    return logoutAction();
+  }
+  // Case 3: Prior user data exists, and is valid
+  return loginAction(user);
+}
+
 function logout() {
   return logoutAction();
 }
 
 module.exports = {
   login,
   loginAction,
-  logout
+  logout,
+  initializeAuth
 };