Removed navigation menu from login page and handled session condition.

src/app/app.component.html

 <ion-app>
   <ion-split-pane contentId="main-content">
-    <ion-menu contentId="main-content" type="overlay">
+    <ion-menu contentId="main-content" type="overlay" *ngIf="restService.isUserLoggedIn">
       <ion-header>
         <ion-toolbar>
           <ion-title>Menu</ion-title>

src/app/app.component.ts

@@ -3,6 +3,10 @@ import { Component } from '@angular/core';
 import { Platform } from '@ionic/angular';
 import { SplashScreen } from '@ionic-native/splash-screen/ngx';
 import { StatusBar } from '@ionic-native/status-bar/ngx';
+import { Storage } from '@ionic/storage';
+import { Router } from '@angular/router';
+
+import { RestService } from './rest.service';
 
 @Component({
   selector: 'app-root',
@@ -10,6 +14,9 @@ import { StatusBar } from '@ionic-native/status-bar/ngx';
   styleUrls: ['app.component.scss']
 })
 export class AppComponent {
+
+
+
   public appPages = [
     {
       title: 'Home',
@@ -26,9 +33,19 @@ export class AppComponent {
   constructor(
     private platform: Platform,
     private splashScreen: SplashScreen,
-    private statusBar: StatusBar
+    private statusBar: StatusBar,
+    public restService: RestService,
+    private storage: Storage,
+    private router: Router
   ) {
     this.initializeApp();
+    this.storage.get('token').then((token) => {
+      if(token === "") {
+        this.router.navigateByUrl('/login');
+      } else {
+        this.restService.isUserLoggedIn = true;
+      }
+    });
   }
 
   initializeApp() {

src/app/auth/login/login.page.ts

@@ -46,7 +46,5 @@ export class LoginPage implements OnInit {
   }
   register() {
     this.router.navigateByUrl('/register');
-
-
   }
 }

src/app/rest.service.ts

@@ -6,11 +6,13 @@ import { Storage } from '@ionic/storage';
 })
 export class RestService {
 
+  public isUserLoggedIn = false;
+
   constructor(private storage: Storage) { }
 
   setToken(token) {
-    // set a key/value
     this.storage.set('token', token);
+    this.isUserLoggedIn = true;
   }
 
   getToken() {