I have a task to do an integration of paypal to my application. I do first time so I need some advice.
In my case I need to do this: while user registering, he should connect his paypal account to application. The point is not to ask user to approve his payment after, when he will buy some staff in application.
I am not sure what should I do. It looks like I need to do billing agreement for charging without approval, but before I need to create billing plan what means that I need to do some kind of subscription (with charging money), what I don't want to do.
I also thought to login with paypal but it's not what I need.
If someone did something like this could you help me with it?