Rabobank Omnikassa

Omnikassa is a Rails gem for Rabobank's Omnikassa. We use manual handleiding 4.1 (Dutch).

This gem is not affiliated with the Rabobank.

Installation

Install the gem and create an initializer.

# Gemfile
gem 'omnikassa', '~> 0.0.2'

# config/initializers/omnikassa.rb
Omnikassa.configure do |config|
  config.merchant_id =  '002020000000001'
  config.secret_key =  '002020000000001_KEY1'
  config.environment = :test
end

Above are the official testing credentials from Rabo, so you don't have to use key and secret to run a test.

Quickstart

Create a request in your controller:

# controllers/payment_controller.rb
def payment
  @omnikassa_request = Omnikassa::Request.new(
    amount: 1234, # transaction amount in cents
    reference: '1223123123', # A unique identifier for the transaction
    return_url: payment_return_url, 
    response_url: payment_response_url
  )
end

Then create a form that will POST the data you just provided to the Omnikassa:

# views/payments/payment.html.erb
<%= form_tag @omnikassa_request.url do |f| %>
  <%= hidden_field_tag 'Data', @omnikassa_request.data_string %>
  <%= hidden_field_tag 'InterfaceVersion', @omnikassa_request.interface_version %>
  <%= hidden_field_tag 'Seal', @omnikassa_request.seal %>
  <%= submit_tag 'Naar betaling' %>
<% end %>

After a user has completed the payment, he is redirected to the URL we specified as return_url. You can show a message depending on the outcome of the payment.

# controllers/payment_controller.rb
def payment_return
  @response = Omnikassa::Response.new(params)
  if response.success?
    render :success
  else
    render :error
  end
end

Immediately after a payment is completed, Rabobank will send a POST-request to whatever URL we specified in response_url. Use this to save the payment to the database, send out emails, etc.

# controllers/payment_controller.rb
def payment_response
  response = Omnikassa::Response.new(params)
  if response.success?
    # update database
  else
    # don't update, send out warning, etc
  end
end

Configurations and defaults

# config/initializers/omnikassa.rb
Omnikassa.configure do |config|
  config.merchant_id =  '002020000000001'
  config.secret_key =  '002020000000001_KEY1'
  config.environment = :test
  key_version = 1,
  currency_code = 978, # EURO
  language =  'nl',
  payment_methods: [:ideal, :minitix, :visa, :mastercard, :maestro, :incasso, :acceptgiro, :rembours]
end

Sending a pull request

Very welcome!

1. Fork the project.
2. Create a branch - git checkout -b adding_magic
3. Make your changes, and add some tests!
4. Check that the tests pass - bundle exec rake
5. Commit your changes - git commit -am "Added some magic"
6. Push the branch to Github - git push origin adding_magic
7. Send us a pull request!

License

Copyright (C) 2013 by Tijmen Brommet. Published under the MIT license. See LICENSE.md for details.