Tools.py

import json
from google.protobuf.json_format import MessageToDict

def grpc_message_to_json(
    message, including_default_value_fields=True, preserving_proto_field_name=True, use_integers_for_enums=False):

    return MessageToDict(
        message, including_default_value_fields=including_default_value_fields,
        preserving_proto_field_name=preserving_proto_field_name, use_integers_for_enums=use_integers_for_enums)

def grpc_message_list_to_json(message_list):
    if message_list is None: return None
    return [grpc_message_to_json(message) for message in message_list]

def grpc_message_to_json_string(message):
    if message is None: return str(None)
    return json.dumps(grpc_message_to_json(message), sort_keys=True)

def grpc_message_list_to_json_string(message_list):
    if message_list is None: return str(None)
    return json.dumps(grpc_message_list_to_json(message_list), sort_keys=True)