From 1fd997c374c14dc7251d257c9daaa742a72076b0 Mon Sep 17 00:00:00 2001
From: Ewen Le Bihan <hey@ewen.works>
Date: Sun, 17 Dec 2023 00:11:39 +0100
Subject: [PATCH] Allow setting custom data on autotracked pageviews via data
 attributes on script element

---
 src/tracker/index.js | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/tracker/index.js b/src/tracker/index.js
index 606da9257..c1efbc422 100644
--- a/src/tracker/index.js
+++ b/src/tracker/index.js
@@ -39,6 +39,15 @@
     }
   };
 
+  const getPageviewEventData = () => Object.fromEntries(
+    [...currentScript.attributes]
+      .filter(attribute => eventRegex.match(attribute.name))
+      .map(attribute => {
+        const match = attribute.name.match(eventRegex);
+        return [match[1], attribute.value]
+      })
+  )
+
   const getPayload = () => ({
     website,
     hostname,
@@ -207,7 +216,7 @@
     } else if (typeof obj === 'function') {
       return send(obj(getPayload()));
     }
-    return send(getPayload());
+    return send({ ...getPayload(), data: getPageviewEventData() });
   };
 
   const identify = data => send({ ...getPayload(), data }, 'identify');