def send_request(self, method, params=None, callback=None):
"""Sends a JSON RPC request to the client.
Args:
method(str): The method name of the message to send
params(any): The payload of the message
Returns:
Future that will be resolved once a response has been received
"""
msg_id = str(uuid.uuid4())
logger.debug('Sending request with id "%s": %s %s', msg_id, method, params)
request = JsonRPCRequestMessage(
id=msg_id,
jsonrpc=JsonRPCProtocol.VERSION,
method=method,
params=params
)
future = Future()
# If callback function is given, call it when result is received
if callback:
def wrapper(future: Future):
result = future.result()
logger.info('Client response for %s received: %s', params, result)
callback(result)
future.add_done_callback(wrapper)
self._server_request_futures[msg_id] = future
self._send_data(request)
return future
def deserialize_message(data, get_params_type=get_method_params_type):
"""Function used to deserialize data received from client."""
if 'jsonrpc' in data:
try:
deserialize_params(data, get_params_type)
except ValueError:
raise JsonRpcInvalidParams()
if 'id' in data:
if 'method' in data:
return JsonRPCRequestMessage(**data)
else:
return JsonRPCResponseMessage(**data)
else:
return JsonRPCNotification(**data)
return data