def create_zenroom_transaction(verb, name, value, signer):
payload = ZenroomPayload(verb=verb, name=name, value=value)
# The prefix should eventually be looked up from the
# validator's namespace registry.
addr = make_zenroom_address(name)
header = transaction_pb2.TransactionHeader(
signer_public_key=signer.get_public_key().as_hex(),
family_name='zenroom',
family_version='1.0',
inputs=[addr],
outputs=[addr],
dependencies=[],
payload_sha512=payload.sha512(),
batcher_public_key=signer.get_public_key().as_hex(),
nonce=hex(random.randint(0, 2**64)))
header_bytes = header.SerializeToString()
signature = signer.sign(header_bytes)
transaction = transaction_pb2.Transaction(header=header_bytes,
payload=payload.to_cbor(),
header_signature=signature)
return transaction
def create_set_request(self, name, value):
address = make_zenroom_address(name)
if value is not None:
data = self._dumps({name: value})
else:
data = None
return self._factory.create_set_request({address: data})
def create_zenroom_transaction(verb, name, value, deps, signer):
"""Creates a signed zenroom transaction.
Args:
verb (str): the action the transaction takes, either 'set', 'inc',
or 'dec'
name (str): the variable name which is altered by verb and value
value (int): the amount to set, increment, or decrement
deps ([str]): a list of transaction header_signatures which are
required dependencies which must be processed prior to
processing this transaction
signer (:obj:`Signer`): the cryptographic signer for signing the
transaction
Returns:
transaction (transaction_pb2.Transaction): the signed zenroom
transaction
"""
payload = ZenroomPayload(verb=verb, name=name, value=value)
# The prefix should eventually be looked up from the
# validator's namespace registry.
addr = make_zenroom_address(name)
header = transaction_pb2.TransactionHeader(
signer_public_key=signer.get_public_key().as_hex(),
family_name='zenroom',
family_version='1.0',
inputs=[addr],
outputs=[addr],
dependencies=deps,
payload_sha512=payload.sha512(),
batcher_public_key=signer.get_public_key().as_hex(),
nonce=hex(random.randint(0, 2**64)))
header_bytes = header.SerializeToString()
signature = signer.sign(header_bytes)
transaction = transaction_pb2.Transaction(header=header_bytes,
payload=payload.to_cbor(),
header_signature=signature)
return transaction
def create_set_response(self, name):
addresses = [make_zenroom_address(name)]
return self._factory.create_set_response(addresses)
def create_get_request(self, name):
addresses = [make_zenroom_address(name)]
return self._factory.create_get_request(addresses)
def _create_txn(self, txn_function, verb, name, value):
payload = self._dumps({'Verb': verb, 'Name': name, 'Value': value})
addresses = [make_zenroom_address(name)]
return txn_function(payload, addresses, addresses, [])