payment is completed without the sender logging in to paypal - ruby-on-rails

Question

I am using this gem active_paypa_adaptive_payment for payments system on a web page.
preapproval_payment feature is working fine and I have a preapproval_key inside my database.
Now I want execute the agreement with my preaproval_key.
I have been checking cancel_preapproval method and it does work fine.
I dont need go to paypal page with cancel_preapproval method in my cancel_order method in my order controller.i.e.:
preapproval_key = #order.payment.preapproval_key
response = gateway.cancel_preapproval(:preapproval_key => preapproval_key)
respond_to do |format|
if response.ack == "Success"
#order.update_attributes
format.html { redirect_to user_orders_url(current_user), notice: t(".cancel_order_success") }
else
format.html { redirect_to user_orders_url(current_user), alert: t(".cancel_order_wrong") }
end
end
How can I execute the agreement with my preapproval_key for transfer funds from sender account to receiver account?
is it possible this feature for execute the agreement instead cancel the agreement with my preapproval_key?
Thank you very much

Answer 1

The solution is add the field :preapproval_key to the response. Something like, in your action:
def your_action
recipients = [{:email => 'receiver_email',
:amount => some_amount,
:primary => true},
{:email => 'receiver_email',
:amount => recipient_amount,
:primary => false}
]
response = gateway.setup_purchase(
:return_url => url_for(:action => 'action', :only_path => false),
:cancel_url => url_for(:action => 'action', :only_path => false),
:ipn_notification_url => url_for(:action => 'notify_action', :only_path => false),
:receiver_list => recipients
:preapproval_key => "your_preapproval_key_here",
)
respond_to do |format|
if object.update_attributes
format.html { redirect_to root_path, notice: t(".success") }
else
format.html { redirect_to root_path, alert: t(".wrong") }
end
end
end
Note that you must have preapproval_key available. You can save it to your database when you make preapproved payment or you can get it with the api PreapprovalDetails
With this way you can make a pay with a preapproved payment. I recommend you add fields as :fees_payer, :senderEmail, :memo...etc for more details.
Regards!