Module validation 

Form validation for What

Provides server-side form validation using signed hidden fields (JWT). When the engine renders a <form w-validate>, it scans inputs for w-* validation attributes, serializes rules as a JWT, and injects a hidden field. On submission, the action handler decodes and validates against those rules.

Structs

FieldRules

Validation rules for a single form field

FormRules

All validation rules for a form

ValidationResult

Result of validating form data against rules

Functions

decode_rules

Decode and verify validation rules from a JWT hidden field

encode_rules

Encode validation rules as a JWT for embedding in a hidden form field

parse_form_rules

Parse validation rules from form HTML by scanning for w-* attributes on inputs

validate_form

Validate form data against rules