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All right.

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And once her front end is in place now, let's secure our server.

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And what's really cool with the help of community?

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So think npm packages?

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It's really pretty straightforward.

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We'll just need to install a few libraries and set it up on our server.

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In this project, we will install Helmick to secure our headers x ss clean to sanitize user input and

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as a result, prevent cross-site scripting attacks, express Mongo sanitize to prevent MongoDB operator

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injection and express a right limit to limit the amount of requests by one IP address.

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Now I did provide the links to the libraries, so if you want to learn more about the packages, just

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utilize them.

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But like I just said, it's pretty straightforward.

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First, we just want to install all of them and then we want to set them up as middleware.

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So I pushed right away in the read me the entire command where we just go with npm install and then

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all of the packages for all utilize that.

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Copy and paste.

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I'll install them now while the packages are being installed.

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I also want to remove the log in the error handler, so we're setting that one up while we were developing.

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And I think now it's a great time to remove it.

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So let's navigate your middleware, more specifically our handler.

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Unless you just remove this console, log for the error, and then let's start in this video by setting

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up these packages.

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So I want to get home at.

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Excess clean and Mango senators.

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And then right after CreditJason, let's invoke them as middle so ago goes up years and then provide

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the package and invoke it.

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And in the next video, we'll worry about the question because although a bit of a different setup.

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So first, let's navigate a server, I guess, right off their path.

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But kind of makes more sense to me.

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Want to go with helmet I was coming from and I'm looking for a library.

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And the same is going to be with access screen.

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So in this case, they're going to go with exercise and let's look for the package.

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And then lastly, we want to do the same thing with Mongo senators.

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So important ban.

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Let's come up with the name.

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I guess in my case, I'm going to go with Mongo sanitizer and that is coming from the Express Mongo

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Sanitize package.

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Let's save it.

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And let me just make sure so sanitize over here.

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Of course, there was spelling is not my best friend.

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So let's keep on moving.

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And like I said, right off, throw expression or something.

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I was just going about use.

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Let's start with the helmet.

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Invoke it.

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Copy and paste can simply change these variables around.

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So this is going to be access and the next one will be the mom or sanitizer.

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So that sets up these three packages again.

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How much is there secured headers?

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Access as clean is to make sure that we sanitize the input so we prevent the cross-site scripting attacks.

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And when it comes to Mongo sanitize, essentially it prevents the MongoDB operator injection.