use contextType as string type

4 years ago · 1606a92c6e
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
+// contextKey a type for context key
-type ContextKey struct{}
+type contextKey string
-//TracingKey is tracing key for ctx
+// TracingKey is tracing key for context
-var TracingKey ContextKey
+var TracingKey = contextKey("X-Trace")