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I think we've got a good initial understanding of how the filesystem module works in Noad and hopefully

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I did not lose too many of you, so hopefully there are still some students left.

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And of course, because I fully understand that seeing this for the first time is probably a bit overwhelming.

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And what I would want to do next is cover the last initial module, the built in module, and that is

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going to be the module which is going to allow us to set up a Web server.

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Now, please keep in mind one thing.

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We'll just cover the basics, because the large part of this course is going to be creating your own

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server and setting up the API.

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Now, granted, we will use an abstraction on top of the module, and that is going to be the package

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by the name of Xpress.

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But the whole point is going to be exactly the same.

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That's why, again, we're not going to cover everything in greatest detail at the moment, because

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I don't see the point of repeating myself.

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And I would want to go back to abcess, zoom back in just so you can see better what is happening.

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By the way, let me check my zoom level.

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So I'm going with settings and I think that you did my zoom level is two at the moment.

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And then back in the address, let's grab the A.P. module and we'll sign it.

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Some kind of variable, as always.

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Let's go with require.

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And we're looking for HTP.

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That's the module name.

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And the method we would want to use is create the server again, will send us some kind of variable.

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And in this case, the variable name will be server.

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Then we go with HTP create server and this creates server method is looking for a callback.

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And in that callback function we have two parameters and both of those parameters are objects.

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And since there parameters, you can call it whatever you want, but a common practice is calling them

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reck and.

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Now this first parameter represents the incoming request.

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So imagine a client is requesting from the Web browser your webpage.

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So you'll have information about the method and all kinds of useful stuff in that request object.

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And the response is what we're sending back now.

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We're not done.

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Of course, we'll set up more code here.

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But before we do anything, we also would need to specifically say what port our server is going to

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be listening to.

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And that's why I will go with server and listen.

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So that's another method.

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Again, this is arbitrary, but I'm going to go with 5000 again if this looks like a lot of gibberish

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where we have the request response as well as the ports, don't worry later.

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And of course, I'll cover that in more detail as well as show you some useful slides and all that good

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stuff.

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And as far as the response, well, we have few methods we have.

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Right.

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So we go with arrest.

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And again, this is the object.

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I notice here how I'm not using the rec yet.

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So I'm not checking for anything.

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I'm just concerned about my response.

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And the method name is right and the right.

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We just come up with some kind of text and I'll say welcome to our home page.

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Page, and once we have sent back the response, I also add one and my request, so I'm going to go

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with her as DOT and and once we're done setting up the code instead of the callback function.

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Now, of course, I would want to open up my terminal, clear everything, and we would need to spend

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the sucker up.

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And of course, the way we do that is node and then abcess, since that is to finally make sure that

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you save it.

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Do so before I run.

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I'll save it and then notice something interesting.

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Notice how we're not exiting.

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So previously, every time we around the file, every time we around node and then whatever to find

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them, we exited from the file.

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Right.

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So Node was done executing the code and we just moved on.

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Now in this case, since we have a web server.

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What the Web servers do, they keep on listening for requests.

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And actually you want your server to always be up.

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And of course, if I go to my Web browser and I'm like this bigger and if we go with localhost and of

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course in this case we have five thousand Verity's, we have welcome to our homepage.

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So now of course we have effectively created our first website.

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Now granted it's very basic but at least we have something on screen.