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At this point, we've got our schema.

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The only thing that is missing is the email validation.

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And just to show you alternative approaches, unlike jobs API, we won't use much option.

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Instead, we'll take a look at the mongooses docs more specific validation.

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And if we keep on scrolling, eventually we'll hit custom validators.

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So if the built in validators aren't enough, we can set up our own validators.

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And the way we do that, we set up a validate property that is going to be an object.

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And in there we have two more properties.

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One is validator, which is going to be equal to a function.

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So this is where we validate the input.

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And this is going to be the message that we show to the user.

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So let's try it out.

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Now we get back.

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We're looking forward to the email in this case.

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And I want to set up that Broward date, well, date object.

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And in that way, after your property's message.

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So it's going to be the message that we're sending back to the user and this guy said, we're going

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to go with the please provide valid email.

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So here we just say please provide email that means provide some kind of value.

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But once we set up to validate, then we'll say, please provide valid the email and then here we need

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to go with a validator which is going to be equal to a function.

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Now we can set up our own function and then we can set up a test where we validate that input.

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But another approach that we can take can use npm package by the name of validator, which is very,

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very popular package.

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And if you take a look at the ducks the way it works, we installed the package, which is already installed

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in the star.

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We are acquired.

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And then once we do that, we have access to a bunch of functions.

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For example, we have one is email service package will do all the work for us.

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We simply need to import the package when we need to get the function we're looking for.

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And as you can see, they have tons and tons of functions, basically validation options.

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And here I just said, is email and you can clearly see what they're checking for.

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So now if I navigate back and if I look for const and validate or I'm sorry validator, I guess validator

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is equal to require.

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And then the package.

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And if you want to take a look.

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Yep, there it is in the package.

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Jason, we have somewhere here.

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Yep, there it is.

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Validator.

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And therefore we can require right away.

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So let's say validator.

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And then once I say I want to go back here and I want to say validator and is email.

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So that's the function that I'm looking for.

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And once we have this in place, every time user is going to be trying to sign up for that account,

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we'll be able to test right away the email.

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So again, this is just alternative approach to what we have.

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In the jobs API or I remember here, yeah.

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Email and then we use Match in this case, back in the user.

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We use external package and we use validate object.