Add util

util/ctx/ctx.go

@@ -0,0 +1,18 @@
+package ctx
+
+import (
+	"context"
+	"net/http"
+	"strings"
+
+	"github.com/micro/go-micro/metadata"
+)
+
+func FromRequest(r *http.Request) context.Context {
+	ctx := context.Background()
+	md := make(metadata.Metadata)
+	for k, v := range r.Header {
+		md[k] = strings.Join(v, ",")
+	}
+	return metadata.NewContext(ctx, md)
+}