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All right.

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And up next, let's connect to our database.

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Now, in order to do that, we need to import mongoose from Mongoose.

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It has a method by the name of Connect.

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So we go here with Mongoose Dot Connect, and we need to provide that connection string.

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Remember the variable we set up a few videos ago and since it's located in dotenv we want to go with

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process dot env and then mongo URL.

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And it's always my preference to essentially wrap everything in try and catch and right after the mongoose

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connect, which returns a promise and that's why we stick await in front of it.

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And remember we don't need to create a function anymore.

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Now we can just do it without the function we can simply set up await.

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And right after that I'll set up my app.listen and all of this is going to be wrapped in try and catch

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so that way if there's any issue.

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So if I cannot connect to the database, well, there's really no point for my server, correct, since

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all of the functionality involves connecting to the database, Hopefully that is clear.

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So therefore here in the catch we just go with console log and then we go process dot exit and we pass

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in one which stands basically for error.

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So now let's navigate to a server like always.

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We want to start by importing stuff.

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So we're going to go here, Mongoose from Mongoose, and let's keep on moving.

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Or here we have the port, Beautiful.

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Right after that we'll set up the try and catch.

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Like I already said few times, we can right away use the await.

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Nothing stops us and then we want to go with process dot env.

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And we're looking for Mongo.

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Underscore you URL and then we'll move this sucker a little bit up.

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So if we're successful.

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Yep.

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Then let's start our server.

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Now, if there's some kind of error, we most likely want to see it.

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So we'll go here with console log error and then we're going to go with process dot exit.

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So if there is an error, we want to exit and we want to provide one.

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So now let's open up our console and let's spin up our server.

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So we're going to go over here with NPM run dev and if everything is correct, we'll see over here.

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Server running on port 5100.

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So that means that we successfully connected to the database.

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Now before we move on, let me just show you a typical error you might get if, let's say your password

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is wrong.

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Let me go here.

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Let me remove one character.

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Remember, we do need to pretty much restart everything.

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And now you'll see a big, massive, giant error in the console.

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Basically, we have bad auth.

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And again, if you see this type of error and notice it even says mongo server error and all that,

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that means you need to double check your connection string.

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So again, let me go back over here.

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Then let me restart NPM run.

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So if you don't see any errors, you're in good shape and we can move on to the next step.