def fulfill_transaction()

in resdb_driver/offchain.py [0:0]

• 11 lines of code
• 5 McCabe index (conditional complexity)

def fulfill_transaction(transaction, *, private_keys) -> dict:
    """! Fulfills the given transaction.

    @param transaction The transaction to be fulfilled.
    @param private_keys One or more private keys to be 
            used for fulfilling the transaction.

    @return The fulfilled transaction payload, ready to be sent to a
            ResDB federation.

    @exception :exc:`~.exceptions.MissingPrivateKeyError`: If a private
        key is missing.
    """
    if not isinstance(private_keys, (list, tuple)):
        private_keys = [private_keys]

    # NOTE: Needed for the time being. See
    # https://github.com/bigchaindb/bigchaindb/issues/797
    if isinstance(private_keys, tuple):
        private_keys = list(private_keys)

    transaction_obj = Transaction.from_dict(transaction)
    try:
        signed_transaction = transaction_obj.sign(private_keys)
    except KeypairMismatchException as exc:
        raise MissingPrivateKeyError("A private key is missing!") from exc

    return signed_transaction.to_dict()