c3lf-system-3/core/notify_sessions/consumers.py

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from json.decoder import JSONDecodeError
from json import loads as json_loads
from json import dumps as json_dumps
from channels.generic.websocket import AsyncWebsocketConsumer
class NotifyConsumer(AsyncWebsocketConsumer):
def __init__(self, *args, **kwargs):
super().__init__(args, kwargs)
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self.room_group_name = "general"
# self.event_slug = None
async def connect(self):
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# self.event_slug = self.scope["url_route"]["kwargs"]["event_slug"]
# self.room_group_name = f"chat_{self.event_slug}"
# Join room group
await self.channel_layer.group_add(self.room_group_name, self.channel_name)
await self.accept()
async def disconnect(self, close_code):
# Leave room group
await self.channel_layer.group_discard(self.room_group_name, self.channel_name)
# Receive message from WebSocket
async def receive(self, text_data):
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try:
text_data_json = json_loads(text_data)
message = text_data_json["message"]
# Send message to room group
await self.channel_layer.group_send(
self.room_group_name, {"type": "chat.message", "message": message}
)
except JSONDecodeError:
await self.send(text_data=json_dumps({"message": "error", "error": "malformed json"}))
except KeyError as e:
await self.send(text_data=json_dumps({"message": "error", "error": f"missing key: {str(e)}"}))
except Exception as e:
await self.send(text_data=json_dumps({"message": "error", "error": "unknown error"}))
raise e
# Receive message from room group
async def chat_message(self, event):
message = event["message"]
# Send message to WebSocket
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await self.send(text_data=json_dumps({"message": message}))