swarm: modify context key (#17925)

* swarm: modify context key

* gofmt sctx.go

1 files changed, 5 insertions, 7 deletions

diff --git a/swarm/sctx/sctx.go b/swarm/sctx/sctx.go
index bed2b1145..fb7d35b00 100644
--- a/swarm/sctx/sctx.go
+++ b/swarm/sctx/sctx.go
@@ -2,19 +2,17 @@ package sctx
 
 import "context"
 
-type ContextKey int
-
-const (
-	HTTPRequestIDKey ContextKey = iota
-	requestHostKey
+type (
+	HTTPRequestIDKey struct{}
+	requestHostKey   struct{}
 )
 
 func SetHost(ctx context.Context, domain string) context.Context {
-	return context.WithValue(ctx, requestHostKey, domain)
+	return context.WithValue(ctx, requestHostKey{}, domain)
 }
 
 func GetHost(ctx context.Context) string {
-	v, ok := ctx.Value(requestHostKey).(string)
+	v, ok := ctx.Value(requestHostKey{}).(string)
 	if ok {
 		return v
 	}