This gem will integrate the Paycorp payment gateway with your Rails app. If you face any issues, place them here : github.com/LeafyCode/paycorp_rails/issues. You can also contact us directly : leafycode.com/contact

Add this line to your application's Gemfile:

gem 'paycorp_rails'

And then execute:

$ bundle

Or install it yourself as:

$ gem install paycorp_rails

To initialize the gateway, in your config/application.rb place the following code and make the necessary changes :

config.after_initialize do
    paycorp_options = {
        client_id: 'CLIENT_ID',
        hmac: 'HMAC',
        auth_token: 'AUTH_TOKEN',
        endpoint: 'ENDPOINT'
    }
    ::PAYCORP_GATEWAY = PaycorpRails.new(paycorp_options)
end

Note : The CLIENT_ID, HMAC, AUTH_TOKEN and the ENDPOINT will be given to you by Paycorp.

First, you need to send the transaction details to Paycorp and initiate the payment :

payment_options = {
    msg_id: SecureRandom.uuid, # Better generate this and store in the model and then use that in here
    amount: AMOUNT_IN_CENTS,
    currency: 'LKR', # Currency
    return_url: "RETURN_URL",
    user_id: USER_ID, # For reference
    css_url: 'ADDITIONAL_CSS'
}

response = PAYCORP_GATEWAY.initiate_payment(payment_options)

amount should be in cents. css_url : If you are using the iframe version, you can pass a css file to style the iframe. Make sure the file is served with HTTPS.

Store the response data in the model (Specially the reqid and the paymentPageUrl)

If you use the iframe method, use the paymentPageUrl for the iframe. If not, redirect the user to that url.

When the user complete the order, the Gateway will redirect to the return_url you provided earlier. The gateway will post some data to this url. Capture them and store the necessary ones. You can pick the right order using the reqid they send like this :

Order.find_by(reqid: params[:reqid])

Now the payment is ready to process but it's not complete and the user haven't been charged. You need to send a request to Paycorp and tell them to complete the order :

payment_options = {
    msg_id: @order.msg_id, # Change @order as necessary
    reqid: @order.reqid
}

response = PAYCORP_GATEWAY.complete_payment(payment_options)

Store the necessary information in the response. If the returned responseCode (response['responseData']['responseCode']) is 00, the order is successful! Otherwise, there's an issue. You can find the response text in the response.

Warning When on testing, Paycorp will change the response code according to the amount of cents in your transaction amount. If you want to see a failing transaction, send a non 0 value as cents.

For example, if the order's amount is 100.00, the response code will be 00. If the amount is 100.01, the response code will be 01. This happens only during development.

After checking out the repo, run bin/setup to install dependencies. Then, run rake false 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/LeafyCode/paycorp_rails. 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.

LeafyCode.com