fix(http): specify ip stack when listen fails (#1306)

* fix(http): specify ip stack when listen fails

* break your err

* fix(http): log msg

---------

Co-authored-by: ze0s <43699394+zze0s@users.noreply.github.com>

internal/http/server.go

@@ -75,18 +75,32 @@ func NewServer(log logger.Logger, config *config.AppConfig, sse *sse.Server, db
 
 func (s Server) Open() error {
 	addr := fmt.Sprintf("%v:%v", s.config.Config.Host, s.config.Config.Port)
-	listener, err := net.Listen("tcp", addr)
+
+	var err error
+	for _, proto := range []string{"tcp", "tcp4", "tcp6"} {
+		if err = s.tryToServe(addr, proto); err == nil {
+			break
+		}
+
+		s.log.Error().Err(err).Msgf("Failed to start %s server. Attempted to listen on %s", proto, addr)
+	}
+
+	return err
+}
+
+func (s Server) tryToServe(addr, protocol string) error {
+	listener, err := net.Listen(protocol, addr)
 	if err != nil {
 		return err
 	}
 
+	s.log.Info().Msgf("Starting server %s. Listening on %s", protocol, listener.Addr().String())
+
 	server := http.Server{
 		Handler:           s.Handler(),
 		ReadHeaderTimeout: time.Second * 15,
 	}
 
-	s.log.Info().Msgf("Starting server. Listening on %s", listener.Addr().String())
-
 	return server.Serve(listener)
 }