from decimal import Decimal
from typing import Union
from .operation import Operation
from .utils import check_ed25519_public_key, check_amount
from ..keypair import Keypair
from ..strkey import StrKey
from ..xdr import Xdr
[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
: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://www.stellar.org/developers/learn/concepts/fees.html>`_.
:param source: The source account for the payment. Defaults to the
transaction's source account.
"""
def __init__(
self,
destination: str,
starting_balance: Union[str, Decimal],
source: str = None,
) -> None:
super().__init__(source)
check_ed25519_public_key(destination)
check_amount(starting_balance)
self.destination: str = destination
self.starting_balance: Union[str, Decimal] = starting_balance
@classmethod
def type_code(cls) -> int:
return Xdr.const.CREATE_ACCOUNT
def _to_operation_body(self):
destination = Keypair.from_public_key(self.destination).xdr_account_id()
create_account_op = Xdr.types.CreateAccountOp(
destination, Operation.to_xdr_amount(self.starting_balance)
)
body = Xdr.nullclass()
body.type = Xdr.const.CREATE_ACCOUNT
body.createAccountOp = create_account_op
return body
[docs] @classmethod
def from_xdr_object(
cls, operation_xdr_object: Xdr.types.Operation
) -> "CreateAccount":
"""Creates a :class:`CreateAccount` object from an XDR Operation object.
"""
source = Operation.get_source_from_xdr_obj(operation_xdr_object)
destination = StrKey.encode_ed25519_public_key(
operation_xdr_object.body.createAccountOp.destination.ed25519
)
starting_balance = Operation.from_xdr_amount(
operation_xdr_object.body.createAccountOp.startingBalance
)
op = cls(
source=source, destination=destination, starting_balance=starting_balance
)
op._source_muxed = Operation.get_source_muxed_from_xdr_obj(operation_xdr_object)
return op