use contextType as string type

2020-09-20 12:04:49 +08:00
parent 029fd3ea35
commit 1606a92c6e
1 changed files with 4 additions and 4 deletions
--- a/core/trace/tracespec/vars.go
+++ b/core/trace/tracespec/vars.go
@@ -1,7 +1,7 @@
 package tracespec

-//ContextKey a type for context key
-type ContextKey struct{}
+// contextKey a type for context key
+type contextKey string

-//TracingKey is tracing key for ctx
-var TracingKey ContextKey
+// TracingKey is tracing key for context
+var TracingKey = contextKey("X-Trace")