Helpers

Validasi provides a few helper classes to help you for Flutter Development.

FieldValidator

The FieldValidator is a class that can be used to validate a single schema. This class is useful since you can get first error message from the schema directly.

import 'package:validasi/validasi.dart';

final schema = Validasi.string().minLength(3);

TextFormField(
    validator: (value) => FieldValidator(schema).validate(value),
);

INFO

For asyncronous validation, you can use validateAsync method instead.

GroupValidator

The GroupValidator is a wrapper around the FieldValidator that can be used to nicely grouped some schema together. This class is useful when you have multiple schema and you want to place them in one place.

import 'package:validasi/validasi.dart';

final schema = GroupValidator({
    'name': Validasi.string().minLength(3),
    'email': Validasi.string().email(),
});

TextFormField(
    validator: (value) => schema.validate('name', value),
);

TextFormField(
    validator: (value) => schema.validate('email', value),
);

INFO

For asyncronous validation, you can use validateAsync method instead.