// +build go1.7 package context import ( "net/http" "context" ) func Get(r *http.Request, key interface{}) interface{} { return r.Context().Value(key) } func Set(r *http.Request, key, val interface{}) *http.Request { if val == nil { return r } return r.WithContext(context.WithValue(r.Context(), key, val)) } func Clear(r *http.Request) { return }