From 2da796c81db2dcde628ed3715da4d6a46238f87a Mon Sep 17 00:00:00 2001
From: Joshua Lee <josh@joshuamlee.com>
Date: Sun, 14 Jul 2024 12:22:51 -0400
Subject: [PATCH] Fixes #1665 Query Params in Span Name

- adds a transform processor
- adds two rules for transforming span names:
  - Strip anything after a "?"
  - Replace productID with a token in "GET /api/products/{productID}"
    spans
---
 src/otelcollector/otelcol-config.yml | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/otelcollector/otelcol-config.yml b/src/otelcollector/otelcol-config.yml
index 8901737b5c..5e7d9925fa 100644
--- a/src/otelcollector/otelcol-config.yml
+++ b/src/otelcollector/otelcol-config.yml
@@ -47,6 +47,13 @@ exporters:
 
 processors:
   batch:
+  transform:
+    error_mode: ignore
+    trace_statements:
+      - context: span
+        statements: 
+          - replace_pattern(name, "\\?.*", "") #could be removed when https://github.com/vercel/next.js/pull/64852 is fixed upstream  
+          - replace_match(name, "GET /api/products/*", "GET /api/products/{productId}")
 
 connectors:
   spanmetrics:
@@ -55,7 +62,7 @@ service:
   pipelines:
     traces:
       receivers: [otlp]
-      processors: [batch]
+      processors: [transform, batch]
       exporters: [otlp, debug, spanmetrics]
     metrics:
       receivers: [docker_stats, httpcheck/frontendproxy, otlp, prometheus, redis, spanmetrics]