Facilitating PayPal Payment Gateway transactions between users on a site - paypal

Question

I am making a website in which users of a website can pay each other on-site like a fiver, Upwork and other platforms.
I want to use the PayPal payment gateway for this purpose. And using Django-rest-framework at the backend.
Are there any tutorials or documentation you guys can refer me to?
here is code when I try to send request to Paypal using payee method.
class PaymentP2P(APIView):
permission_classes = ()
# authentication_classes = (SessionAuthentication, TokenAuthentication)
def post(self,request):
email_request=request.data['payee']
price_to_pay = str(request.data['price'])
payment = paypalrestsdk.Payment(self.build_request_body(email_request,price_to_pay))
print(payment)
if payment.create():
print("Payment created successfully")
else:
print(payment.error)
return Response({'paymentID':payment.id},status=200)
#staticmethod
def build_request_body(email_user="payee#email.com",price="220.00"):
"""Method to create body with a custom PAYEE (receiver)"""
return \
{
"intent": "AUTHORIZE",
"purchase_units": [
{
"amount": {
"total": price,
"currency": "USD"
},
"payee": {
"email_address": "sb-loe4o1374588#personal.example.com"
},
},
]
}

Answer 1

For one user to pay another user's email, you can use PayPal Checkout with a payee variable: https://developer.paypal.com/docs/checkout/integration-features/custom-payee/
Here are some front-end demo patterns of the basic checkout:
One that calls endpoints on your server to set up and capture
transactions:
https://developer.paypal.com/demo/checkout/#/pattern/server
One that
does not do that, and only uses client-side js:
https://developer.paypal.com/demo/checkout/#/pattern/client