Source code for stellar_sdk.operation.bump_footprint_expiration
from typing import Optional, Union
from .. import xdr as stellar_xdr
from ..muxed_account import MuxedAccount
from .operation import Operation
__all__ = ["BumpFootprintExpiration"]
[docs]
class BumpFootprintExpiration(Operation):
"""The :class:`BumpFootprintExpiration` object, which represents a BumpFootprintExpiration
operation on Stellar's network.
Threshold: Medium
See `BumpFootprintExpirationOp <https://soroban.stellar.org/docs/fundamentals-and-concepts/state-expiration#bumpfootprintexpirationop>`_.
:param ledgers_to_expire: The number of ledgers past the LCL (last closed ledger)
by which to extend the validity of the ledger keys in this transaction.
:param source: The source account for the operation. Defaults to the transaction's source account.
"""
_XDR_OPERATION_TYPE: stellar_xdr.OperationType = (
stellar_xdr.OperationType.BUMP_FOOTPRINT_EXPIRATION
)
def __init__(
self, ledgers_to_expire: int, source: Optional[Union[MuxedAccount, str]] = None
) -> None:
super().__init__(source)
if ledgers_to_expire < 0 or ledgers_to_expire > 2**32 - 1:
raise ValueError(
f"`ledgers_to_expire` value must be between 0 and 2**32-1, got {ledgers_to_expire}"
)
self.ledgers_to_expire: int = ledgers_to_expire
def _to_operation_body(self) -> stellar_xdr.OperationBody:
op = stellar_xdr.BumpFootprintExpirationOp(
ext=stellar_xdr.ExtensionPoint(0),
ledgers_to_expire=stellar_xdr.Uint32(self.ledgers_to_expire),
)
body = stellar_xdr.OperationBody(
type=self._XDR_OPERATION_TYPE, bump_footprint_expiration_op=op
)
return body
[docs]
@classmethod
def from_xdr_object(
cls, xdr_object: stellar_xdr.Operation
) -> "BumpFootprintExpiration":
"""Creates a :class:`BumpFootprintExpiration` object from an XDR Operation object."""
source = Operation.get_source_from_xdr_obj(xdr_object)
assert xdr_object.body.bump_footprint_expiration_op is not None
ledgers_to_expire = (
xdr_object.body.bump_footprint_expiration_op.ledgers_to_expire.uint32
)
op = cls(source=source, ledgers_to_expire=ledgers_to_expire)
return op
def __str__(self):
return f"<BumpFootprintExpiration [ledgers_to_expire={self.ledgers_to_expire}, source={self.source}]>"