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Welcome back.

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In this video, let's see how we can implement login out.

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And it's very simple with experts.

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So back to our code.

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Let me collapse the terminal here and let's remove this.

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Once the next step is let's implement the logout functionality, we can bring it any way we want.

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So let's bring it here as log out and here is the handler app dot get and slash look out.

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Log out and then as always, our callback function, req and response and there you go.

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So how are we going to look out?

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We can look out on the rec dot session.

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We have a method called destroy.

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So let's try out first and see.

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Let's come down here and then let's redirect the user to the log in page after logging out.

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So let's see how we are going to achieve this one.

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Well, so back to the template of the profile.

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That's where we have the log out.

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So let's look in as lazy.

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One, two, three, four, five and log in.

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And now on this button, when I click on that, I want to delete the session and I believe we have that

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one already where we implemented the cookie based functionality.

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I think, yeah, it's here.

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So this one is for the cookie based one.

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So let me comment one.

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And now let's take to the session one, which is this functionality.

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So now let's go ahead and then click on that.

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So let's refresh it now because I've refreshed my server.

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That's why I got that.

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So let's log in again.

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And let's look out and you can see that everything is working.

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Now, if I go to protected and you can see that the unauthorized template has been rendered, meaning

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that I have locked out.

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So this is how we can lock out a user that is our sun.

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So again, as soon as I refresh the server, you can see that the session destroyed.

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Do you remember?

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Yes.

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So let me prove to you one more time, then we get back into how we are going to avoid that.

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So here let's console.log the rec dot session and I believe for this one we have done it before.

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So if I open the terminal and now if I go to home page and let's go to homepage and refresh now and

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check it out.

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You can see that on this session there is no log in user, but as soon as I log in with this user.

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You can see that.

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And then you go to homepage and now you see that I have the user as soon as I restart the server.

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Yes, let's go and I go to homepage.

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Let's refresh it.

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And now we see that there is no log in user.

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This is a reason why we say that HTTP servers are stateless, so it is our responsibility to keep the

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search engine in a state.

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And then this video we are going to implement how we can save the session inside MongoDB.

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So any time we want to visit, whether our server shut down or we look out, we still have the user

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inside our database.

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So let's get into that in the next video.