ez_validator 0.0.1

Dead simple field/object schema validation for flutter

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

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": '[e-mail]',
  "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(),
  ....
};

Methods

.required([String? message])

Validates if value is not empty or null.

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

Validates if value length is not less than minLength.

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

Validates if value length is not more than maxLength.

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

Validates if value is lesser or equal to min.

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

Validates if value is higher or equal max.

.email([String? message])

Checks if value is an email address.

.uiid([String? message])

Checks if value is a valid uuid.

.number([String? message])

Checks if value is a number.

.boolean([String? message])

Checks if value is boolean (true,false).

.notNumber([String? message])

Checks if value is not a number.

.lowerCase([String? message])

Checks if value is on lowercase.

.upperCase([String? message])

Checks if value is on uppercase.

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

Checks if value is one of the follwoing items.

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

Checks if value is not one of the follwoing items.

.phone([String? message])

Checks if value is a phone number.

.ip([String? message])

Checks if value is correct IPv4 address.

.ipv6([String? message])

Checks if value is correct IPv6 address.

.url([String? message])

Checks if value is correct url address.

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

Validates if 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