Installation

Add this line to your application's Gemfile:

gem 'credit_cards_validator'

And then execute:

$ bundle

Or install it yourself as:

$ gem install credit_cards_validator

Usage

You only need to do this:

ValidateCard.card_number_validate(number) 

and then it will return true for valid credit card or false for invalid credit card. if you use this gem inside terminal, require 'credit_card_validator' instead.

if you want to get the brand name you only need to do this:

ValidateCard.brand_name(number)

and then you will get card brand name like this...

:master_card

You can use:

ValidateCard.brand_name(number).to_s.tr("_"," ").capitalize

and you will get humanized name. It will return false for invalid numbers!

Current Card Brand Names:

Master Card, Visa, Diners Club, JCB, American Express, Discover

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/[MatheusHH]/credit_card_validator.

License

The gem is available as open source under the terms of the MIT License.