WEBVTT

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So as I mentioned before, I'm not 100% happy with the code that has been added here to

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app.js.

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Whilst we could run this code like this, I would rather run this code after we started

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the server.

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So what I'll do instead, instead of exporting the app object here, is I'll call app.listen,

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which we'll need to do at some point anyways, since this is the actual command that will

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start the server.

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And then it's here in this callback, as this is called, which is passed as a second

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argument to the listen method, it's in here where I actually want to initialize my database.

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So I'll cut the code from up here and instead put that in here.

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And I'll still exit the server and this process if this fails.

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But I want to do this after I started the server, so that if starting the server failed,

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I don't even try to initialize the database.

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Now here for the port, I'll also make some changes.

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Instead of always using 3000, I'll add some alternative code, the one which is suggested

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to me here now and which I can accept with a tab, like this, to take a look at the environment

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variables that have been set for this app and use the value stored in a port environment

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variable, if it's available, instead of 3000.

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And actually for that, I'll invert this and use this value as a fallback value if this

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should not be set.

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Okay.

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So that's that.

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Therefore, I'll also hit tab again and accept these changes to this string where it outputs

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the actual port if it's not the 3001.

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And with that, I'm happy with this code here in app.js, at least for now.

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We are initializing the database once the server started.

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We're handling requests to slash users.

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We're sending them to our user routes and in there, we're trying to invoke functions

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the user's controller.js file, where then in turn, we try to use the create user function,

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which is coming from the user model file, where we are indeed using the database to

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insert users, for example.