PayPal Express Checkout API Client for recurring billing.
gem install paypal-recurring
First, you need to set up your credentials:
require "paypal/recurring" PayPal::Recurring.configure do |config| config.sandbox = true config.username = "seller_1308793919_biz_api1.simplesideias.com.br" config.password = "1308793931" config.signature = "AFcWxV21C7fd0v3bYYYRCpSSRl31AzaB6TzXx5amObyEghjU13.0av2Y" end
Then, you can request a new payment authorization:
ppr = PayPal::Recurring.new({ :return_url => "http://example.com/paypal/thank_you", :cancel_url => "http://example.com/paypal/canceled", :ipn_url => "http://example.com/paypal/ipn", :description => "Awesome - Monthly Subscription", :amount => "9.00", :currency => "USD" }) response = ppr.checkout puts response.checkout_url if response.valid?
You need to redirect your user to the url returned by response.checkout_url. After the user accepts or rejects your payment request, he will be redirected to one of those urls you specified. The return url will receive two parameters: PAYERID and TOKEN. You can use the TOKEN parameter to identify your user on your database.
If you need to retrieve information about your buyer, like address or e-mail, you can use the checkout_details() method.
ppr = PayPal::Recurring.new(:token => "EC-05C46042TU8306821") response = ppr.checkout_details
Now, you need to request payment. The information you provide here should be exactly the same when you started the checkout process.
ppr = PayPal::Recurring.new({ :token => "EC-05C46042TU8306821", :payer_id => "WTTS5KC2T46YU", :amount => "9.00", :description => "Awesome - Monthly Subscription" }) response = ppr.request_payment response.approved? response.completed?
Finally, you need to create a new recurring profile.
ppr = PayPal::Recurring.new({ :amount => "9.00", :currency => "USD", :description => "Awesome - Monthly Subscription", :ipn_url => "http://example.com/paypal/ipn", :frequency => 1, :token => "EC-05C46042TU8306821", :period => :monthly, :reference => "1234", :payer_id => "WTTS5KC2T46YU", :start_at => Time.now, :failed => 1, :outstanding => :next_billing }) response = ppr.create_recurring_profile puts response.profile_id
You can manage your recurring profile.
ppr = PayPal::Recurring.new(:profile_id => "I-VCEL6TRG35CU") ppr.suspend ppr.reactivate ppr.cancel
You should save two paramaters to your database: TOKEN and PROFILEID. TOKEN is required when user returns to your website after he authorizes (or not) the billing process. You need to save it so you can find him later. You can remove this info after payment and recurring profile are set.
The PROFILEID allows you to manage the recurring profile, like canceling billing when an user don’t want to use your service anymore.
NOTE: TOKEN will expire after approximately 3 hours.
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handle Instant Payment Notifications (IPN)
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Nando Vieira (nandovieira.com.br)
(The MIT License)
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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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