from decimal import Decimal
from typing import Optional, Union
from .. import xdr as stellar_xdr
from ..keypair import Keypair
from ..muxed_account import MuxedAccount
from ..strkey import StrKey
from ..utils import raise_if_not_valid_amount, raise_if_not_valid_ed25519_public_key
from .operation import Operation
__all__ = ["CreateAccount"]
[docs]
class CreateAccount(Operation):
"""The :class:`CreateAccount` object, which represents a Create Account
operation on Stellar's network.
This operation creates and funds a new account with the specified starting
balance.
Threshold: Medium
See `Create Account <https://developers.stellar.org/docs/start/list-of-operations/#create-account>`_ for more information.
:param destination: Destination account ID to create an account for.
:param starting_balance: Amount in XLM the account should be
funded for. Must be greater than the `reserve balance amount
<https://developers.stellar.org/docs/glossary/minimum-balance/>`_.
:param source: The source account for the operation. Defaults to the
transaction's source account.
"""
_XDR_OPERATION_TYPE: stellar_xdr.OperationType = (
stellar_xdr.OperationType.CREATE_ACCOUNT
)
def __init__(
self,
destination: str,
starting_balance: Union[str, Decimal],
source: Optional[Union[MuxedAccount, str]] = None,
) -> None:
super().__init__(source)
self.destination: str = destination
self.starting_balance: str = str(starting_balance)
raise_if_not_valid_ed25519_public_key(self.destination, "destination")
raise_if_not_valid_amount(self.starting_balance, "starting_balance")
def _to_operation_body(self) -> stellar_xdr.OperationBody:
destination = Keypair.from_public_key(self.destination).xdr_account_id()
starting_balance = stellar_xdr.Int64(
Operation.to_xdr_amount(self.starting_balance)
)
create_account_op = stellar_xdr.CreateAccountOp(destination, starting_balance)
body = stellar_xdr.OperationBody(
type=self._XDR_OPERATION_TYPE, create_account_op=create_account_op
)
return body
[docs]
@classmethod
def from_xdr_object(cls, xdr_object: stellar_xdr.Operation) -> "CreateAccount":
"""Creates a :class:`CreateAccount` object from an XDR Operation object."""
source = Operation.get_source_from_xdr_obj(xdr_object)
assert xdr_object.body.create_account_op is not None
assert (
xdr_object.body.create_account_op.destination.account_id.ed25519 is not None
)
destination = StrKey.encode_ed25519_public_key(
xdr_object.body.create_account_op.destination.account_id.ed25519.uint256
)
starting_balance = Operation.from_xdr_amount(
xdr_object.body.create_account_op.starting_balance.int64
)
op = cls(
source=source, destination=destination, starting_balance=starting_balance
)
return op
def __str__(self):
return (
f"<CreateAccount [destination={self.destination}, "
f"starting_balance={self.starting_balance}, "
f"source={self.source}]>"
)