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All right.

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And once we're familiar with mangoes, let's get up a notch and finally start using our database on

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our server.

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And the first thing we need to do is to set up a connection and at least a basic setup is going to look

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something like this where we're going to import mangoes.

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And of course, we're going to do that.

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Ian Connect.

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Yes.

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So I'm looking for any beef older and then more specifically for connect dress, I'm not here at the

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top above the connection string.

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We're going to go with Konst Mangoes.

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That's the name of my instance and the sequel to require.

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And of course, I'm looking for the marquis and wants to have the instance of the method.

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Name is Connect.

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So we go here with Mangoes Dot Connect, and the first thing we want to pass in is the connection string

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party.

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If you remember, I said that we'll have to make some changes.

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Take a look.

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So this is going to be my username, correct?

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But then what is the value for the password?

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Well, that is some dummy value.

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So in here, we need to pass in our actual password.

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So in my case, of course, that is one two three four.

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But I strongly suggest using more secure one for your application online here.

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At the very end, we have my first database.

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So this is what they set up by default and now is going to be the name for the database.

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If I don't change it.

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And you're probably wondering, well, wait a minute.

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I mean, we didn't set this up on the Atlas.

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So why it's here it, if it's not going to be there, it's going to be created for you.

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So here you have two options, either you can just go with this one.

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Or in my case, I'm going to remove it.

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And again, just make sure that you don't remove more than you should.

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So you want to remove everything, starting with the fourth flash all the way to the question mark.

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And here, of course, you need to come up with a name.

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And in my case, I'm going to go with the same name as my application.

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So since I have zero point one for no tutorial and then task manager is zero point three, that's exactly

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what I'm going to set up over here.

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So I'm going to go with zero point three then hyphen, and I think I'm going to go uppercase, so I'm

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going to go with zero point three task and manager.

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Again, this is going to be the database name, and if you haven't created that database already, they

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will create for you.

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And once we add these changes, our connection string is ready to go.

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So now we're simply need to pass in as a first argument.

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Now the second argument is going to be options, and effectively this is we're all passing some values

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just to avoid some deprecation warnings and you'll see what I'm talking about in a second.

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But for the time being, we'll just leave it empty and then this returns a promise.

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So we're simply going to go with that then.

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And since I want to see whether I'm successful as far as the connection, I'll just pass in a callback

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function and I'll say log.

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And of course, I will remove the semicolon and I'll say connected connected to the DB about that.

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And then since there might be an error as well, we also want to go with catch.

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And of course, we'll just be looking for error.

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So we have our callback function and I'll say error and simpler console.log there.

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I'll say here console.log and I'm going to be looking for error.

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And once we say nothing happens and the reason why nothing happens is because we're not executing this

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function yet.

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But if you remember during tutorial, one of the first things that are covered is the fact that if we

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have a function in a module where the function is effectively executed there and then we only need to

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import meaning require the module and we'll right away execute the function.

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So I simply want and I go to objets and this is just temporary because we will change the set up around

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this one.

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We won't leave it this way.

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I just want to get the connection up and running.

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And therefore, I'm just going to go to objets and then we go with the require.

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I notice I'm not assigning any kind of variable simply go with require that and we look in the DB.

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And then more specifically, we're looking for a connect.

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And once you say you have tons of deprecation warnings, and don't worry, we'll fix them in a second,

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but all the way on the bottom.

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If everything is correct or we're here, if you pass in the correct password and you grab the correct

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connection string, then you should see connected to the database.

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And if I want to test out the error, I'll simply remove the four, since I know that that is going

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to be a wrong password.

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So once I save now, of course, I'll have this error.

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So I'm just going to keep on.

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All in a notice here, it's kind of, say, Atlus era.

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And of course, Harry, you know why?

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Because my password is correct.

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And if we'll take a look at our graphical interface and atlas, once we refresh, we're not going to

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see any changes because again, we haven't set up any kind of logic.

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So you're looking at it, you're like, OK, I still have one database.

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What's happening?

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Don't worry.

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Once we start adding items, that database will be created for us, in my case, zero point three task

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manager.

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And even though I will refactor this in the next video because there are some gotchas that I want to

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talk about before we do that, I'll show you how we can remove those deprecation warnings in a console.

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And if you remember, we just need to pass in a second argument, which is going to be an object.

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And here we just need to pass a following key value pairs and we'll start with use new you are all parser

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and start equal to true.

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I don't look for use create index so that one equal to true and then we'll go and use, find and modify

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that one will be false.

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And then lastly, we want to go and use unified topology, and not one will set equal to true.

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So once I save now, I don't have any of those warnings.

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I simply see servers listening on Port 3000.

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And then I have connected to the database.

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And if that is also something that you see in a console, you are in good shape and we're ready to move

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on to the next step.