From 9230b0ba162090c7445f5ac9621d652dec691bdb Mon Sep 17 00:00:00 2001
From: Jamie Taylor <me@nekodex.net>
Date: Fri, 20 Jul 2018 15:03:20 +0900
Subject: [PATCH] Add config option to disable url tagging of automatic request
 timing metrics

---
 config/datadog-helper.php                   | 11 +++++++++++
 src/Middleware/LaravelDatadogMiddleware.php |  5 ++++-
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/config/datadog-helper.php b/config/datadog-helper.php
index e6ef455..904e13c 100644
--- a/config/datadog-helper.php
+++ b/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
diff --git a/src/Middleware/LaravelDatadogMiddleware.php b/src/Middleware/LaravelDatadogMiddleware.php
index 9a772c6..49a0a38 100644
--- a/src/Middleware/LaravelDatadogMiddleware.php
+++ b/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);
     }
 }