Allowing users to log out

Users will also expect us to provide a way to log out of our application. Passport makes this easy by adding a logout function to the request. We just need to make use of this in one of our routes here src/routes/index.js:

    router.post('/logout', function(req, res){
        req.logout();
        res.redirect('/');
    });

We can add a log out button to our view to make use of this new route as in src/views/index.hjs:

    {{#loggedIn}}
      <form action="/logout" method="POST">
        <input type="submit" value="Log out" />
      </form>
      <h3>Profile</h3>