def get_raw_message(
self,
api: LedgerApi,
message: ContractApiMessage,
dialogue: ContractApiDialogue,
) -> ContractApiMessage:
"""
Send the request 'get_raw_message'.
:param api: the API object.
:param message: the Ledger API message
:param dialogue: the contract API dialogue
:return: None
"""
contract = self.contract_registry.make(message.contract_id)
method_to_call = getattr(contract, message.callable)
try:
rm = method_to_call(api, message.contract_address, **message.kwargs.body)
response = ContractApiMessage(
performative=ContractApiMessage.Performative.RAW_MESSAGE,
message_id=message.message_id + 1,
target=message.message_id,
dialogue_reference=dialogue.dialogue_label.dialogue_reference,
raw_message=RawMessage(message.ledger_id, rm),
)
response.counterparty = message.counterparty
dialogue.update(response)
except Exception as e: # pylint: disable=broad-except # pragma: nocover
response = self.get_error_message(e, api, message, dialogue)
return response
def dispatch_request(
self,
ledger_api: LedgerApi,
message: ContractApiMessage,
dialogue: ContractApiDialogue,
response_builder: Callable[[bytes], ContractApiMessage],
) -> ContractApiMessage:
"""
Dispatch a request to a user-defined contract method.
:param ledger_api: the ledger apis.
:param message: the contract API request message.
:param dialogue: the contract API dialogue.
:param response_builder: callable that from bytes builds a contract API message.
:return: the response message.
"""
contract = self.contract_registry.make(message.contract_id)
try:
data = self._get_data(ledger_api, message, contract)
response = response_builder(data)
response.counterparty = message.counterparty
dialogue.update(response)
except AEAException as e:
self.logger.error(str(e))
response = self.get_error_message(e, ledger_api, message, dialogue)
except Exception as e: # pylint: disable=broad-except # pragma: nocover
self.logger.error(
f"An error occurred while processing the contract api request: '{str(e)}'."
)
response = self.get_error_message(e, ledger_api, message, dialogue)
return response