1 package transport 2 3 import "net/http" 4 5 func writeHeaders(w http.ResponseWriter, headers map[string][]string) { 6 if len(headers) == 0 { 7 headers = map[string][]string{ 8 "Content-Type": {"application/json"}, 9 } 10 } 11 12 for key, values := range headers { 13 for _, value := range values { 14 w.Header().Add(key, value) 15 } 16 } 17 } 18