如果我在本地存储中存储了令牌，刷新页面后如何保持登录状态

Question

How to stay logged in after refreshing the page if I have token stored in local storage.

-or-

How to after receiving token from server(due to successful login), redirect to www.mypage.com/welcome page, but server will send to me this page only if I identify yourself as verified.

Answer 1

import this import { tokenNotExpired } from 'angular2-jwt' and add this simple function loggedIn() { return tokenNotExpired } , some function of rxjs was deprecated in angular 6, so I use rxjs-compat for backward compatibility. It solve the issue. Also, check this https://github.com/auth0/angular2-jwt

Answer 2

I'm assuming you're just using vanilla JS here.

You can check if an item is in local storage by using the localStorage.getItem('yourItem') method and an if statement, which would look something like:

if (localStorage.getItem('yourItem') === null) {
  // code to execute if the item isn't in local storage
} else {
  // code to execute if the item is in local storage
  window.location = //full url to redirect to

window.location can be used to send the user to another URL inside the else block if they have your item in their local storage.

Answer 3

No, you can't do it via local storage. That's why cookies exist.