ez_validator

Dead simple field/object schema validation for flutter
EzValidator api is inspired by Yup

EzValidator

EzValidator is a flutter schema builder for value validation. Define a schema, validate the shape of an existing value, or both. EzValidator allow single or object validations

Installing

Add EzValidator to your pubspec:

dependencies:
  ez_validator: any # or the latest version on Pub

Usage

You define your schema object. check the exemple folder of how to use validation with multiple form with showing errors

EzSchema mySchema = EzSchema.shape({
  "email": EzValidator().required().email().build(),
  "password": EzValidator()
      .required()
      .minLength(6)
      .matches(
          r'^(?=.*[A-Za-z])(?=.*\d)(?=.*[@$!%*#?&])[A-Za-z\d@$!%*#?&]{6,}$',
          'Minimum six characters, at least one letter, one number and one special character')
      .build(),
  "age": EzValidator().required().min(18).build(),
}, identicalKeys: true);

// check validity

Map<String, String> errors = mySchema.validateSync({
  "email": 'iheb@pixelium.tn',
  "password": '444',
  "age": "17"
});

print(errors);

// output if the form not valid
//
//  {
//    "password": "Minimum six characters, at least one letter, one number and one special character",
//    "age": "The field must be greater than or equal to 18"
//  }
//
//
// output if the form is valid
//{}

exemple of using defaultTest

EzSchema mySchema = EzSchema.shape({
  .....
  "sum": EzValidator()
        .required()
        .defaultTest(
            'Test not valid please recheck', (v) => int.parse(v as String) > 25)
        .build(),
  ....
};

Showcase

with default localewith custom locale

Methods

.required([String? message])

Validates if the value is not empty or null.

.minLength(int minLength, [String? message])

Validates if the value length is not less than minLength.

.maxLength(int maxLength, [String? message])

Validates if the value length is not more than maxLength.

.min(int min, [String? message])

Validates if the value is lesser or equal to min.

.max(int max, [String? message])

Validates if the value is higher or equal max.

.positive([String? message])

Validates if the value is positive.

.negative([String? message])

Validates if the value is negative.

.email([String? message])

Checks if the value is an email address.

.uiid([String? message])

Checks if the value is a valid uuid.

.number([String? message])

Checks if the value is a number.

.boolean([String? message])

Checks if the value is boolean (true,false).

.date([String? message])

Checks if the value is a date type.

.notNumber([String? message])

Checks if the value is not a number.

.lowerCase([String? message])

Checks if the value is on lowercase.

.upperCase([String? message])

Checks if the value is on uppercase.

.oneOf(List<String?> items,[String? message])

Checks if the value is one of the follwoing items.

.notOneOf(List<String?> items,[String? message])

Checks if the value is not one of the follwoing items.

.phone([String? message])

Checks if the value is a phone number.

.ip([String? message])

Checks if the value is correct IPv4 address.

.ipv6([String? message])

Checks if the value is correct IPv6 address.

.url([String? message])

Checks if the value is correct url address.

.matches(String pattern, [String? message])

Validates if the value does matches with the pattern.

.defaultTest(String message, bool Function(String? v) test)

Validates the value with your own validation logic

Copyright

Validator code inspired from form_validator

Libraries

ez_locale
ez_schema
ez_validator
ez_validator
ez_validator_builder
ez_validator_locale
ez_validator_method_channel
ez_validator_platform_interface
ez_validator_web
regex_list