I am trying to write my custom Transaction processor. I am writing for simple Account class
class Account:
def __init__(self, name, ac_number, balance):
self.name = name
self.ac_number = ac_number
self.balance = balance
My TP is working fine for a single account. Now I want to improve it for multiple accounts. To get a different state for each account number I have changed _'_get_account_address_' function. I am following @danintel 's Cookiejar and XO_python projects. I am following xo code to get the address.
AC_NAMESPACE = hashlib.sha512('account'.encode("utf-8")).hexdigest()[0:6]
def _make_account_address(name):
return AC_NAMESPACE + \
hashlib.sha512(name.encode('utf-8')).hexdigest()[:64]
_get_account_address is working fine but _make_account_address showing error in cli
Tried to set unauthorized address
My state code is
import logging
import hashlib
from sawtooth_sdk.processor.exceptions import InternalError
LOGGER = logging.getLogger(__name__)
FAMILY_NAME = "account"
# TF Prefix is first 6 characters of SHA-512("cookiejar"), a4d219
AC_NAMESPACE = hashlib.sha512('account'.encode("utf-8")).hexdigest()[0:6]
def _make_account_address(name):
return AC_NAMESPACE + \
hashlib.sha512(name.encode('utf-8')).hexdigest()[:64]
def _hash(data):
'''Compute the SHA-512 hash and return the result as hex characters.'''
return hashlib.sha512(data).hexdigest()
def _get_account_address(from_key):
'''
Return the address of a cookiejar object from the cookiejar TF.
The address is the first 6 hex characters from the hash SHA-512(TF name),
plus the result of the hash SHA-512(cookiejar public key).
'''
return _hash(FAMILY_NAME.encode('utf-8'))[0:6] + \
_hash(from_key.encode('utf-8'))[0:64]
class Account:
def __init__(self, name, ac_number, balance):
self.name = name
self.ac_number = ac_number
self.balance = balance
class AccountState:
def __init__(self, context):
self._context = context
def make_account(self, account_obj, from_key):
'''Bake (add) "amount" cookies.'''
account_address = _make_account_address(account_obj.name) # not working
#account_address = _get_account_address(from_key) # working fine
LOGGER.info('Got the key %s and the account address %s.',
from_key, account_address)
state_str = ",".join([str(account_obj.name), str(account_obj.ac_number), str(account_obj.balance)])
state_data = state_str.encode('utf-8')
addresses = self._context.set_state({account_address: state_data})
if len(addresses) < 1:
raise InternalError("State Error")
