In using paypal mobile sdk's, Here is how I understand how it will work as what I have read in the docs.
- A drop-in will show that will prompt you to login.
- Once logged in the payment will be processed and you will receive some kind of "proof-of-payment" data that will be forwarded to the server for verification.
- The server will then fetch the payment data using the payment id
- You as a developer should manually verify its "state" and the "transaction" object it contains.
After that, when I try to view if the said transaction is "done". I refresh the transactions tab in the sandbox dashboard and nothing appears. Is there a next procedure that I should do in order to confirm that these transactions really happened?
Also, is there an equivalent of the "single payment" used in mobile sdks for websites As far as I know, there is no "web" sdk's provided that would produce a drop-in similar to the mobile sdk's.
There could be a delay in the transactions appearing on sandbox. If you have a transaction id, you can do a REST call to get its status to see if it has been approved.
The preferred solution for a drop-in option for web is v.zero, once you integrate with it you have paypal as a payment option.