Check session without extending it

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Hi @luke3,

You can use the getTokenSilently method to check on the session without extending it. If the token is valid, the token will be returned. If the user has a valid session that has not timed out, then a new token will be returned. Otherwise, a login_required error will be thrown.

To make sure this does not extend the session, I did a quick test in the Vue Quickstart by updating my tenant’s inactivity timeout to 3 minutes and the ID Token lifetime to 2 minutes and updated the app’s src/components/NavBar.vue file:

<script>
export default {
  name: "NavBar",
  methods: {
    login() {
      this.$auth.loginWithRedirect();
    },
    logout() {
      this.$auth.logout();
      this.$router.push({ path: "/" });
    },
    check() {
      const logout = this.logout;
      this.$auth.getTokenSilently().then((token) => {
        console.log(token)
      }).catch((e) => {
        console.error({e});
        if (e.error === 'login_required') {
          logout();
        }
      });
    }
  },
  mounted: function () {
    // Check every 10 seconds if their session exists with Auth0. If not, log them out.
    const CHECK_INTERVAL = 10000; // in ms
    const check = this.check;
    function initInterval() {
      setInterval(() => {
        check();
      }, CHECK_INTERVAL);
    }
    initInterval();
  }
};
</script>