15-React Firebase Auth Persistence with Local Storage

Author: rwieruch

src/components/Session/withAuthentication.js

@@ -9,16 +9,18 @@ const withAuthentication = Component => {
       super(props);
 
       this.state = {
-        authUser: null,
+        authUser: JSON.parse(localStorage.getItem('authUser')),
       };
     }
 
     componentDidMount() {
       this.listener = this.props.firebase.onAuthUserListener(
         authUser => {
+          localStorage.setItem('authUser', JSON.stringify(authUser));
           this.setState({ authUser });
         },
         () => {
+          localStorage.removeItem('authUser');
           this.setState({ authUser: null });
         },
       );