stripe subscription with paymentintent code example

Example 1: stripe customer subscription creation

Stripe.apiKey = "sk_test_51GxVwbJ4s7XuDwiBI9WcRYmSuSJihNlMtIaZNZv5G2UvFAdGbj5VHvhwhSODsF4xsd1jYOPqWlORLUMpXkiX4Hhf00PgGFcKqp";

List<Object> items = new ArrayList<>();
Map<String, Object> item1 = new HashMap<>();
item1.put(
  "price",
  "price_1GyXO4J4s7XuDwiBgZuarsP8"
);
items.add(item1);
Map<String, Object> params = new HashMap<>();
params.put("customer", "cus_HXPA4Dd7nRTM5W");
params.put("items", items);

Subscription subscription =
  Subscription.create(params);

Example 2: stripe payment refund

{
  "id": "re_1I65p52eZvKYlo2CrOr8b3iF",
  "object": "refund",
  "amount": 100,
  "balance_transaction": null,
  "charge": "ch_1I65p42eZvKYlo2Ch6Z0IPRW",
  "created": 1609815783,
  "currency": "usd",
  "metadata": {},
  "payment_intent": null,
  "reason": null,
  "receipt_number": null,
  "source_transfer_reversal": null,
  "status": "succeeded",
  "transfer_reversal": null
}