From 604cff1a0610396432732592caaa43fc246e588c Mon Sep 17 00:00:00 2001
From: Will Hunt <will@half-shot.uk>
Date: Tue, 5 Jun 2018 13:17:55 +0100
Subject: [PATCH] Add metrics to track appservice transactions

---
 synapse/appservice/api.py | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/synapse/appservice/api.py b/synapse/appservice/api.py
index 00efff146..08fe67e19 100644
--- a/synapse/appservice/api.py
+++ b/synapse/appservice/api.py
@@ -24,8 +24,27 @@ from synapse.types import ThirdPartyInstanceID
 import logging
 import urllib
 
+from prometheus_client import Counter
+
 logger = logging.getLogger(__name__)
 
+sent_transactions_counter = Counter(
+    "synapse_appservice_api_sent_transactions",
+    "Number of /transactions/ requests sent",
+    ["service"]
+)
+
+failed_transactions_counter = Counter(
+    "synapse_appservice_api_failed_transactions",
+    "Number of /transactions/ requests that failed to send",
+    ["service"]
+)
+
+sent_events_counter = Counter(
+    "synapse_appservice_api_sent_events",
+    "Number of events sent to the AS",
+    ["service"]
+)
 
 HOUR_IN_MS = 60 * 60 * 1000
 
@@ -219,12 +238,15 @@ class ApplicationServiceApi(SimpleHttpClient):
                 args={
                     "access_token": service.hs_token
                 })
+            sent_transactions_counter.label(service.id).inc()
+            sent_events_counter.label(service.id).inc(len(events))
             defer.returnValue(True)
             return
         except CodeMessageException as e:
             logger.warning("push_bulk to %s received %s", uri, e.code)
         except Exception as ex:
             logger.warning("push_bulk to %s threw exception %s", uri, ex)
+        failed_transactions_counter.label(service.id).inc()
         defer.returnValue(False)
 
     def _serialize(self, events):