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All right.

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And while we're still at it, why don't we also take a look how we can check for a duplicate e-mail

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right here?

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Ian Rogers the controller because it might come in handy from time to time and effectively what we're

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trying to do is not to rely on the error handler to do the job.

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Instead, we want to right away send back the response from the controller.

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And the way it's going to look like we're going to go here with email and we're going to go with John

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at Gmail dot com.

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I do need to make sure that I have all the proper syntax here and Senate, and we're clearly know that

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this is coming from our error handler.

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And the alternative approach that we can take is something like this where I could come up with some

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kind of property name.

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So contact and in my case, I'm going to go with user already exists and that will be equal to await.

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And now I want to go with the user and then find one.

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And inside of the filter object, I want to pass in the email, which essentially is going to look for

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a user with a less specific email.

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So if email is provided, then let's check for the user.

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Now, if user already exists, if that is the case, what we can do?

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Well, we can throw you by request.

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There are certain throw new bat requests.

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And what do we want a person?

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Well, some kind of alternative message, meaning different message.

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That's what we have in our handler otherwise.

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I mean, it's going to be very hard to see where the error is coming from.

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So I'm going to go with email.

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Already in use, let's service, and now it's just around what Senate and now we have 400.

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And the message is following email already.

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And we are know that this is coming from our own error handler.