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Description:

credit card validator

credit_card_validator | Credit Card Validator #
A Dart package that validates credit card numbers, expiration dates, and security codes (CVV/CVC) of a credit card. It also determines the type of credit card as part of the validation process.
This package should be used to quickly validate credit card data inputs and provide feedback to the user in your application's UI. It includes support for "potentially valid" inputs so that you can appropriately display the results to the user as they type.
Disclaimer: This package does not verify credit card information with the user's bank or credit company. Please use a payment processing service like Stripe or Braintree for true verification, validation, and processing of the user's payment info.
Installing #
Add dependency to pubspec.yaml
Get the current version in the Installing tab on pub.dev
dependencies:
credit_card_validator: *current-version*
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Usage #
A basic example
import 'package:credit_card_validator/credit_card_validator.dart';

class CreditCardValidationBloc {
CreditCardValidator _ccValidator = CreditCardValidator()

bool validateCreditCardInfo(string ccNum, string expDate, string cvv, ...) {
var ccNumResults = _ccValidator.validateCCNum(ccNum);
var expDateResults = _ccValidator.validateExpDate(expDate);
var cvvResults = _ccValidator.validateCVV(cvv, ccNumResults.ccType);
...

if(ccNumResults.isPotentiallyValid) {
# Call UI code that shows to the user their credit card number is invalid
displayInvalidCardNumber();
}
}
}

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If multiple card types are detected then the returned message will include the list of conflicting cards. You can then edit/remove the cards as needed using the API available in credit_card_type_detector
Features #

Default supported cards:

Visa
Mastercard
American Express
Discover
Diners Club
JCB
Union Pay
Maestro
Mir
Elo
Hiper/Hipercard

Custom defined credit cards

Inspiration Repo #
This package is inspired by Braintree's Credit Card Validator JS package
Related Repos #

Credit Card Type Detector - GitHub

Author #
Cholojuanito (Tanner Davis) - Creator and repo owner - Github Profile
Support #
If you think this package is helpful, tell your friends, give it a star on GitHub, and a like on pub.dev
License #
This project is licensed under the MIT License - see the LICENSE file for more details