1) Wallet is set up in `view-only mode` with a `secret view key` created
2) Payment server calls `make_integrated_address` on wallet RPC for every new transaction
3) User sends funds to the integrated address
4) Call `get_bulk_payments` with the `payment ID` to get TX IDs
number of confirmations and total moneroj amount
5) Periodically call `get_transfer_by_txid` with the TX ID to get the transfered ammount and number of confirmations
5) Stop calling `get_transfer_by_txid` once enough confirmations are present