Add auth_api_calls_total and auth_api_calls_total

docs/reference/http.rst

@@ -162,6 +162,15 @@ Queries and compilation
   GraphQL query, ``=sql`` for a readonly SQL query from the user, and
   ``=compiled`` for a backend SQL query compiled and issued by the server.
 
+Auth Extension
+^^^^^^^^^^^^^^
+
+``auth_api_calls_total``
+  **Counter.** Number of API calls to the Auth extension.
+
+``auth_ui_renders_total``
+  **Counter.** Number of UI pages rendered by the Auth extension.
+
 Errors
 ^^^^^^
 

edb/server/metrics.py

@@ -175,3 +175,15 @@
     "Number of each high-availability watch event.",
     labels=("dsn", "event"),
 )
+
+auth_api_calls = registry.new_labeled_counter(
+    "auth_api_calls_total",
+    "Number of API calls to the Auth extension.",
+    labels=("tenant",),
+)
+
+auth_ui_renders = registry.new_labeled_counter(
+    "auth_ui_renders_total",
+    "Number of UI pages rendered by the Auth extension.",
+    labels=("tenant",),
+)

edb/server/protocol/protocol.pyx

@@ -129,16 +129,18 @@ cdef class HttpProtocol:
     def connection_lost(self, exc):
         srv_metrics.client_connection_duration.observe(
             time.monotonic() - self.connection_made_at,
-            (
-                "unknown"
-                if self.tenant is None
-                else self.tenant.get_instance_name()
-            ),
+            self.get_tenant_label(),
             "http",
         )
         self.transport = None
         self.unprocessed = None
 
+    def get_tenant_label(self):
+        if self.tenant is None:
+            return "unknown"
+        else:
+            return self.tenant.get_instance_name()
+
     def pause_writing(self):
         pass
 
@@ -656,6 +658,15 @@ cdef class HttpProtocol:
                         tenant=self.tenant,
                     )
                     await handler.handle_request(request, response, args)
+                    if args:
+                        if args[0] == 'ui':
+                            srv_metrics.auth_ui_renders.inc(
+                                1.0, self.get_tenant_label()
+                            )
+                        else:
+                            srv_metrics.auth_api_calls.inc(
+                                1.0, self.get_tenant_label()
+                            )
 
         elif route == 'auth':
             if await self._handle_cors(