Source code for stellar_sdk.operation.payment

from decimal import Decimal
from typing import Union, Optional

from .operation import Operation
from .utils import check_amount, check_ed25519_public_key
from ..keypair import Keypair
from ..asset import Asset
from ..utils import parse_ed25519_account_id_from_muxed_account_xdr_object
from ..xdr import Xdr

[docs]class Payment(Operation): """The :class:`Payment` object, which represents a Payment operation on Stellar's network. Sends an amount in a specific asset to a destination account. Threshold: Medium :param destination: The destination account ID. :param asset: The asset to send. :param amount: The amount to send. :param source: The source account for the payment. Defaults to the transaction's source account. """ def __init__( self, destination: str, asset: Asset, amount: Union[str, Decimal], source: str = None, ) -> None: super().__init__(source) check_amount(amount) check_ed25519_public_key(destination) self._destination: str = destination self._destination_muxed: Optional[Xdr.types.MuxedAccount] = None self.asset: Asset = asset self.amount: Union[str, Decimal] = amount @property def destination(self) -> str: return self._destination @destination.setter def destination(self, value: str): check_ed25519_public_key(value) self._destination_muxed = None self._destination = value @classmethod def type_code(cls) -> int: return Xdr.const.PAYMENT def _to_operation_body(self) -> Xdr.nullclass: asset = self.asset.to_xdr_object() if self._destination_muxed is not None: destination = self._destination_muxed else: destination = Keypair.from_public_key(self._destination).xdr_muxed_account() amount = Operation.to_xdr_amount(self.amount) payment_op = Xdr.types.PaymentOp(destination, asset, amount) body = Xdr.nullclass() body.type = Xdr.const.PAYMENT body.paymentOp = payment_op return body
[docs] @classmethod def from_xdr_object(cls, operation_xdr_object: Xdr.types.Operation) -> "Payment": """Creates a :class:`Payment` object from an XDR Operation object. """ source = Operation.get_source_from_xdr_obj(operation_xdr_object) destination = parse_ed25519_account_id_from_muxed_account_xdr_object( operation_xdr_object.body.paymentOp.destination ) asset = Asset.from_xdr_object(operation_xdr_object.body.paymentOp.asset) amount = Operation.from_xdr_amount(operation_xdr_object.body.paymentOp.amount) op = cls(source=source, destination=destination, asset=asset, amount=amount) op._destination_muxed = operation_xdr_object.body.paymentOp.destination op._source_muxed = Operation.get_source_muxed_from_xdr_obj(operation_xdr_object) return op