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!