Support Prometheus_client 0.4.0+ (#5636)

1 files changed, 17 insertions, 0 deletions

diff --git a/synapse/metrics/__init__.py b/synapse/metrics/__init__.py

index eaf0aaa86e..488280b4a6 100644
--- a/synapse/metrics/__init__.py
+++ b/synapse/metrics/__init__.py
@@ -29,8 +29,16 @@ from prometheus_client.core import REGISTRY, GaugeMetricFamily, HistogramMetricF
 
 from twisted.internet import reactor
 
+from synapse.metrics._exposition import (
+    MetricsResource,
+    generate_latest,
+    start_http_server,
+)
+
 logger = logging.getLogger(__name__)
 
+METRICS_PREFIX = "/_synapse/metrics"
+
 running_on_pypy = platform.python_implementation() == "PyPy"
 all_metrics = []
 all_collectors = []
@@ -470,3 +478,12 @@ try:
         gc.disable()
 except AttributeError:
     pass
+
+__all__ = [
+    "MetricsResource",
+    "generate_latest",
+    "start_http_server",
+    "LaterGauge",
+    "InFlightGauge",
+    "BucketCollector",
+]