Trace device messages.

1 files changed, 8 insertions, 0 deletions

diff --git a/synapse/rest/client/v2_alpha/sendtodevice.py b/synapse/rest/client/v2_alpha/sendtodevice.py

index 2613648d82..a7782cbd7c 100644
--- a/synapse/rest/client/v2_alpha/sendtodevice.py
+++ b/synapse/rest/client/v2_alpha/sendtodevice.py
@@ -20,6 +20,11 @@ from twisted.internet import defer
 from synapse.http import servlet
 from synapse.http.servlet import parse_json_object_from_request
 from synapse.rest.client.transactions import HttpTransactionCache
+from synapse.util.tracerutils import (
+    TracerUtil,
+    trace_defered_function_using_operation_name,
+    tag_args,
+)
 
 from ._base import client_patterns
 
@@ -42,7 +47,10 @@ class SendToDeviceRestServlet(servlet.RestServlet):
         self.txns = HttpTransactionCache(hs)
         self.device_message_handler = hs.get_device_message_handler()
 
+    @trace_defered_function_using_operation_name("sendToDevice")
     def on_PUT(self, request, message_type, txn_id):
+        TracerUtil.set_tag("message_type", message_type)
+        TracerUtil.set_tag("txn_id", txn_id)
         return self.txns.fetch_or_execute_request(
             request, self._put, request, message_type, txn_id
         )