Form custom validation

rom.regnier · 2024-09-10T11:27:13.109Z

Hey everyone,

I might have completely missed it but I can not find best practices around custom validations for forms.

Let’s say I want a sign-up page where I want the user to pick a username. The username must be unique and between 5 and 15 characters.
For checking if a user is unique, I am currently doing a search on the username field which works.

However, I am not sure of the following:

What is the best way to:

Prompt an error message to the user (I currently have a text which is by default to not visible, if the input does not meet the required validation, it is shown)
Do validation on the client side
Most importantly validate the data on the server side

Would the custom states work correctly for this? I was not sure that this would also help to validate the data on the server side.
I also would like if possible to repeat the validation multiple times.

Thanks a lot!

system · 2024-11-19T11:27:21.171Z

This topic was automatically closed after 70 days. New replies are no longer allowed.