Source code for stellar_sdk.operation.clawback

from decimal import Decimal
from typing import Optional, Union

from .. import xdr as stellar_xdr
from ..asset import Asset
from ..muxed_account import MuxedAccount
from .operation import Operation
from .utils import check_amount

__all__ = ["Clawback"]

[docs]class Clawback(Operation): """The :class:`Clawback` object, which represents a Clawback operation on Stellar's network. Claws back an amount of an asset from an account. Threshold: Medium :param asset: The asset being clawed back. :param from_: The public key of the account to claw back from. :param amount: The amount of the asset to claw back. :param source: The source account for the operation. Defaults to the transaction's source account. """ _XDR_OPERATION_TYPE: stellar_xdr.OperationType = stellar_xdr.OperationType.CLAWBACK def __init__( self, asset: Asset, from_: Union[MuxedAccount, str], amount: Union[str, Decimal], source: Optional[Union[MuxedAccount, str]] = None, ) -> None: super().__init__(source) check_amount(amount) if isinstance(from_, str): from_ = MuxedAccount.from_account(from_) self.from_: MuxedAccount = from_ self.asset: Asset = asset self.amount: Union[str, Decimal] = amount def _to_operation_body(self) -> stellar_xdr.OperationBody: asset = self.asset.to_xdr_object() from_ = self.from_.to_xdr_object() amount = Operation.to_xdr_amount(self.amount) clawback_op = stellar_xdr.ClawbackOp(asset, from_, stellar_xdr.Int64(amount)) body = stellar_xdr.OperationBody( type=self._XDR_OPERATION_TYPE, clawback_op=clawback_op ) return body
[docs] @classmethod def from_xdr_object(cls, xdr_object: stellar_xdr.Operation) -> "Clawback": """Creates a :class:`Clawback` object from an XDR Operation object. """ source = Operation.get_source_from_xdr_obj(xdr_object) assert xdr_object.body.clawback_op is not None asset = Asset.from_xdr_object(xdr_object.body.clawback_op.asset) from_ = MuxedAccount.from_xdr_object(xdr_object.body.clawback_op.from_) amount = Operation.from_xdr_amount(xdr_object.body.clawback_op.amount.int64) op = cls(source=source, from_=from_, asset=asset, amount=amount) return op
def __str__(self): return f"<Clawback [asset={self.asset}, from_={self.from_}, amount={self.amount}, source={self.source}]>"