Use JSON for sending messages

core/lib/manage/threshold.py

@@ -1,5 +1,3 @@
-import urllib.parse
-
 from django.conf import settings
 
 from core.lib.opensearch import client, run_main_query
@@ -194,9 +192,8 @@ def get_irc_alerts(user):
 
 
 def send_irc_message(net, num, channel, msg, nick=None):
-    channel = urllib.parse.quote(channel, safe="")
-    url = f"irc/msg/{net}/{num}/{channel}"
-    payload = {"msg": msg}
+    url = f"irc/msg/{net}/{num}"
+    payload = {"msg": msg, "channel": channel}
     if nick:
         payload["nick"] = nick
     messaged = threshold_request(url, payload, method="PUT")