Add a config option to allow disabling of url tagging if the middleware request timings

config/datadog-helper.php

@@ -34,6 +34,17 @@
 
     'statsd_port' => 8125,
 
+    /*
+    |--------------------------------------------------------------------------
+    | Disable tagging request durations with url
+    |--------------------------------------------------------------------------
+    |
+    | Sites with large numbers of unique URIs can cause excessive unique tags for a metric which results
+    | in Datadog being unhappy (to the point of being unresponsive).
+    |
+    */
+    'middleware_disable_url_tag' => false,
+
     /*
     |--------------------------------------------------------------------------
     | Transport

src/Middleware/LaravelDatadogMiddleware.php

@@ -40,10 +40,13 @@ protected static function logDuration(Request $request, Response $response, $sta
         $duration = microtime(true) - $startTime;
 
         $tags = [
-            "url" => $request->getSchemeAndHttpHost() . $request->getRequestUri(),
             "status_code" => $response->getStatusCode()
         ];
 
+        if (!config('datadog-helper.middleware_disable_url_tag', false)) {
+            $tags["url"] = $request->getSchemeAndHttpHost() . $request->getRequestUri();
+        }
+
         Datadog::timing('request_time', $duration, 1, $tags);
     }
 }