Use VERCEL_REGION system env var instead of reading internal header (#…

…137) * Use VERCEL_REGION system env var instead of reading internal header * changeset
vercel · Dec 10, 2024 · 2f43edb · 2f43edb
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diff --git a/.changeset/olive-dodos-melt.md b/.changeset/olive-dodos-melt.md
@@ -0,0 +1,5 @@
+---
+"@vercel/otel": patch
+---
+
+Use VERCEL_REGION system env var instead of reading internal header
diff --git a/packages/otel/src/vercel-request-context/attributes.ts b/packages/otel/src/vercel-request-context/attributes.ts
@@ -26,7 +26,7 @@ export function getVercelRequestContextAttributes(
 
     "vercel.request_id": parseRequestId(context.headers["x-vercel-id"]),
     "vercel.matched_path": context.headers["x-matched-path"],
-    "vercel.edge_region": context.headers["x-vercel-edge-region"],
+    "vercel.edge_region": process.env.VERCEL_REGION,
 
     ...rootAttrs,
   });