python fast api stripe onboarding

i am making food delivery, and i need onboard my customer(restaurants) to stripe so they can pay me every month and when someone order something the money need to go to restaurants stripe account. i and want it build in react frontend and python fast api

requirements: 1: onboardning customer(resturants)to stripe(custom)
2: make Subscription to customer(resturants) 200kr every monnth and 2500kr one time payment to a start
3: and when user buy something(eg.food) the money need to go to the resturant where the user has bought the food
4: refund