GoCardless webhook

GoCardless webhook

I use gocardless gateway to process payments. I used to rely on web hooks
when I use any kind of payment gateway. But I feel myself exposed using
gocardless and here is the cause: as I see there is no way to connect
payment with the application entity. Lets see next flow:
User presses "pay with gocardless" button on my site
User fills the form on gocardless site
User confirms the payment but does not visit redirect_url (I can insert my
parameters in the redirect_url params and fetch related entity. So lets
think it is lost)
Gocardless sends me webhook
All the steps seems to be just perfect. You will say "he can obtain
entity-payment relation from a webhook" but I can not. Here is webhook
data:
{
"payload" =>
{
"bills" => [
{
"id" => "0DZGWZ2VF6",
"status"=>"pending",
"uri"=>"https://sandbox.gocardless.com/api/v1/bills/0DZGFV2VF6",
"amount"=>"90.0",
"amount_minus_fees"=>"89.1",
"source_type"=>"subscription",
"source_id"=>"0DZGY8VW5E"
}
],
"resource_type"=>"bill",
"action"=>"created",
"signature"=>"92072347ad478b...db84b80f0b9"
}
}
No data is related to the database entity except price. Thus I can not
process the data. I can not embed the information about the buyer or about
the product. Is there another way to obtain buyer-payload-product
relations?
After some hours of checking full system workflow I realized that it might
be another way of purchase confirmation on the gocardless gateway. If I am
not mistaken I can rely on redirect_url action because my application has
to confirm the payment. In the other case the payment will not be applied,
no money will be sent and the record will be removed from gocardless in
short period of time. Could you confirm my thoughts or propose another way
of payment processing please?