Adjustable streaming outgoing payments

[sabineschaller]

a.k.a. Making STREAM great again 😂

Context

When an outgoing payment is currently created, we open a STREAM connection and stream the payment as fast as possible. There is no possibility to slow down the stream or to not use STREAM.

Proposal

We add the possibility to specify how fast to stream an outgoing payment. That way, for the web monetization use case, we do not have to create multiple outgoing payments on an interval but we can create one “streaming outgoing payment”, that keeps an open STREAM connection and streams on the rate that the user specified.

Questions:

• Is this another payment method?
• Where do we specify the rate?
  • OP grant limits
  • OP quote together with the method?

Necessary changes in Rafiki:

• Logic to convert e.g. “36ct/hour” into a stream of USD 0.00000001 per second
  • This is based on the available asset scale on the wallet address
• potentially adjustments to pay library to slow down streaming?