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In this video.

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Let's go ahead to register a user.

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So let's get into the controller of the users and here we go.

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So let's start with the registration.

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Before we get into that, let's look at the steps that we are going to follow.

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Step number one is you want to check if the user is not registered.

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So here, check if email exists that first step.

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The second step is that you want to check if a user is trying to submit an empty data verrastro mongoose

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who through an error.

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But we can also check for that inside the controller before getting to the model.

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So here we go.

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Check if failed.

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And.

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And lastly is we want to hash the user password.

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So these are the three steps that we are going to follow.

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So first is let's bring in the user model.

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So let's see, the auto import is working fine.

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If it doesn't work, let me show you some tricks.

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Go to the file.

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That is the model here.

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This is what we want.

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We save it.

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And now back to the file where you want to have the auto import.

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And by typing user, you can see that it is working like a magic.

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So here we go.

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So first of all, let's structure the properties that we want to create from the request body as cons

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equal to wreck dirt body.

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And inside here we need the foo name, the password, and then the email.

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So here let's check if user is found by email.

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So the const user found is equal to await the user model and you're going to use find one.

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And if find one we can find by any property for this one you want to find by email.

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So here, let's go ahead and through an error if a user is found.

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But because we have not tackled the error handling, we are going to send some message to the user by

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using rest.

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Jason So here we go.

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If user found, then we can say return from this function and then let's use rest.

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Jason And then we are going to say the message by saying that user already.

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Exists.

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So let's save it.

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And now let's work with the empty field.

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Well, so we are going to check if there is no email or there is no password or there is no full name

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and then return rest docs.

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Jason and then message.

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You are going to say that, please.

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Provide all fuel.

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Well, we can still use a third party package like Express Validator to do all these ones.

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But I just want to bring this one here.

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So it's is not going to be an optional, though.

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So after that, at this point, we can go ahead and then register the user.

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But you don't want to save the PIN password into the database.

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Because of that, we are going to use a third party package or be equipped chase.

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So let's get to the terminal and now let's install that package.

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Let's create a terminal on an MP and I.

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Ain't Jazz finished?

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Let's restart our server.

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Now the server is running.

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The next step is let's require the package.

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So if you have been taking my other policies, you can see that I always handle the hash or the password

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inside the module.

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But for this time around, I just want to do it inside the controller.

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So here we go.

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Can't be encrypt is equal to required the secret package and that is it be encrypt chips.

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That is it.

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So how are we going to hash the password?

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So here.

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First of all, we are going to create a salt from the package as a wait and decrypt dot gen sort and

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by convention we use ten.

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After that, we are going to hash the password.

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So here let's assign the hash password to this variable as hashed password, which is equal to our weight.

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And we bring in the big rate package on that we call something hash.

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So here I'm going to pass in the plane password and then the salt and that is it.

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So after that, we can go ahead and then create the user.

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So here we go.

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So let's comment here and say that creates user perfect.

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So const user is equal to our weight and then the user does not create.

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Then you pass in the properties that you want to create.

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The first one going to be the full name, the email, and for the password we are going to save the

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plane password as hash password.

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And if everything goes on, well, we are going to send the response to the user.

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So here, let's refactor this one a little bit and let's provide status and start and say success.

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You may need this one in the front end.

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So I will show you when we get there.

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And after that, let's also sign the foo name as user dot foo name and the id too.

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You may need this one also in the front end as user.

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That is it.

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So for the error handling, don't worry, we are going to do that one in this video.

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So moment of truth.

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But before we continue, we need to tell x player to pass the incoming data.

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So by default, exploit doesn't allow that.

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So let's go ahead and then do that one.

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So let's go ahead and then register a user.

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So this is the end point.

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So here I'm going to pass in a body.

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So let's hit send.

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And there we go we go starters 200 which is OC and we have the response great.

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But we are not sending the emails, so let's go ahead and send the email also.

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So here email is going to be the user dot e mail.

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Great.

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So let's go ahead and then register with the same email and let's see the message.

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And this is the message.

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You can see that we have titles, 200 million.

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Okay?

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That is why I say that this is not an error.

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So you're going to find a proper way to handle this kind of situations.

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So to check if a user is being saved, let's use the extension that is the MongoDB for visual STD code

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and let's click on the connection string and click on refresh.

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And this time around we have our database name as income expenses app.

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If we open it, you can see we have one collection called Uses and this what I was telling you that

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when you compile it is going to utilize this one and convert each one to lowercase as we see here.

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So if you open that, we have one document and inside the document this is what we have.

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If you open it, you can see this is a data being saved inside MongoDB.

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And for the password, we are saving this random string of characters.

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That is perfect.

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So in the next video, let's go ahead and implement the logic for logging in.

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Let's get into that in the next video.