音楽で楽しみましょう！-Let's have fun with music!-

Signed-off-by: Shin'ya Minazuki <shinyoukai@laidback.moe>

api/funquail_api/common/channels.py

@@ -0,0 +1,26 @@
+import json
+import logging
+
+from asgiref.sync import async_to_sync
+from channels.layers import get_channel_layer
+from django.core.serializers.json import DjangoJSONEncoder
+
+logger = logging.getLogger(__name__)
+channel_layer = get_channel_layer()
+group_add = async_to_sync(channel_layer.group_add)
+group_discard = async_to_sync(channel_layer.group_discard)
+
+
+def group_send(group, event):
+    # we serialize the payload ourselves and deserialize it to ensure it
+    # works with msgpack. This is dirty, but we'll find a better solution
+    # later
+    s = json.dumps(event, cls=DjangoJSONEncoder)
+    event = json.loads(s)
+    logger.debug(
+        "[channels] Dispatching %s to group %s: %s",
+        event["type"],
+        group,
+        {"type": event["data"]["type"]},
+    )
+    async_to_sync(channel_layer.group_send)(group, event)