yakaa

This gem is used to accept and receive payments from Yandex Kassa.

Add this line to your application's Gemfile:

gem 'yaka'

And then execute:

$ bundle

Or install it yourself as:

$ gem install yaka

1. Attach gem for your project

2. Create initializer for your project that will set shop_id and private_key.

   # yaka.rb
    
   Yaka.config.shop_id = ENV['YANDEX_SHOP_ID']
   Yaka.config.private_key = ENV['YANDEX_PRIVATE_KEY']

3. Create payment at client side:

       <script src="https://static.yandex.net/checkout/js/v1/"></script>
        <script src="https://static.yandex.net/checkout/ui/v1/"></script>
        <button class="btn" onclick="$checkout.open()">Pay 100</button>
        <script>
          const $checkout = YandexCheckoutUI(<%= Yaka.config.shop_id %>, {amount: 100});
          $checkout.on('yc_success', function(response) {
            $.ajax({
              url: "/route_for_yandex_kassa",
              type: 'POST',
              dataType: "json",
              contentType: "application/json; charset=utf-8",
              data: JSON.stringify({
                redirect_url: 'https://example.com',
                token: response.data.response.paymentToken,
                amount: 100,
                json_data: {ololo: 4}
              })
            }).then(x => {
                if (x.status === "succeeded") {
                  $checkout.chargeSuccessful();
                } else {
                  if (x.status === "pending") {
                    window.location = x.confirmation.confirmation_url;
                  } else {
                    $checkout.chargeFailful();
                  }
                }
              }
            );
          });

4. Create payment at backend side:

   Token is received from front-end(token from the code above).

   payment = Yaka::Payment.new(
     amount: Yaka::Payment::Amount.new(value: params[:amount], currency: 'USD'),
     description: "Пополнение счета через карту", payment_token: params[:token], 
     metadata: params[:json_data], client_ip: request.remote_ip, 
     confirmation: { type: "redirect", return_url: params[:redirect_url]})
     
   response = Yaka.publish_payment(payment, SecureRandom.uuid)

   If payment is successful - you will receive status succeeded. If pending - in confirmation.confirmation_url you will have a 3ds confirmation URL. Use it!

5. Then you will receive a callback about payment attempt(callback is configured at yandex site).

   You can use Yaka.yandex_ip?(ip) to check remote ip of received request to avoid scams and cheatings.

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.

Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/yaka. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

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

Everyone interacting in the yaka project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.