def safe_sign_transaction(
transaction: Transaction,
wallet: Wallet,
check_fee: bool = True,
) -> Transaction:
"""
Signs a transaction locally, without trusting external rippled nodes.
Args:
transaction: the transaction to be signed.
wallet: the wallet with which to sign the transaction.
check_fee: whether to check if the fee is higher than the expected transaction
type fee. Defaults to True.
Returns:
The signed transaction blob.
"""
if check_fee:
_check_fee(transaction)
transaction_json = _prepare_transaction(transaction, wallet)
serialized_for_signing = encode_for_signing(transaction_json)
serialized_bytes = bytes.fromhex(serialized_for_signing)
signature = sign(serialized_bytes, wallet.private_key)
transaction_json["TxnSignature"] = signature
return cast(Transaction, Transaction.from_xrpl(transaction_json))
def safe_sign_transaction(
transaction: Transaction,
wallet: Wallet,
) -> Transaction:
"""
Signs a transaction locally, without trusting external rippled nodes.
Args:
transaction: the transaction to be signed.
wallet: the wallet with which to sign the transaction.
Returns:
The signed transaction blob.
"""
transaction_json = _prepare_transaction(transaction, wallet)
serialized_for_signing = encode_for_signing(transaction_json)
serialized_bytes = bytes.fromhex(serialized_for_signing)
signature = sign(serialized_bytes, wallet.private_key)
transaction_json["TxnSignature"] = signature
return cast(Transaction, Transaction.from_xrpl(transaction_json))
def safe_sign_transaction(transaction: Transaction, wallet: Wallet) -> str:
"""
Signs a transaction locally, without trusting external rippled nodes.
Args:
transaction: the transaction to be signed.
wallet: the wallet with which to sign the transaction.
Returns:
The signed transaction blob.
"""
# Increment the wallet sequence number, since we're about to use one.
wallet.next_sequence_num += 1
transaction_json = transaction_json_to_binary_codec_form(
transaction.to_dict())
transaction_json["SigningPubKey"] = wallet.pub_key
serialized_for_signing = encode_for_signing(transaction_json)
serialized_bytes = bytes.fromhex(serialized_for_signing)
signature = sign(serialized_bytes, wallet.priv_key)
transaction_json["TxnSignature"] = signature
return encode(transaction_json)