How to verify if a email exists in the database before user signup

[Larguitto]

Hi. I´m trying to verify if a email exists before the user signup.

I have set this conditions to verify if the email exists.

But it doesn´t works fine.

I have created a field with this conditions

If I left the email field in blank and the result of the field is 37, it appears to show al the registers in the database,

Anyone can help me?

[Rozza]

Adalo has this out the box warning. I expect it only works on their native user signup form. Not custom form.

In a custom form you risk exposing the email addresses of all users, as you have seen. Can you make do with the Adalo form?

[Larguitto]

Thanks. I’ll try It.

[Victor]

Hi @Larguitto,

The way Adalo filtering works is when a filter value is empty, the backend considers that all values match this key.
That’s why you get “37” as a result. Also, for example, if you add a list of Users, add input box, and make a custom filter on that List that Email contains Input - when the input is empty, you will get all users.
To avoid this, you can use a conditional visibility on the element in question: make it visible sometimes, if the input is not empty.

But the easiest way is to use built-in Adalo form.

Best,
Victor.

[Larguitto]

Thanks Víctor !! i’ll try to use ir.