feat 自定义拦截器

internal/global/metric.go

@@ -7,13 +7,20 @@ import (
 
 var (
 	OnlineUsersGauge prometheus.Gauge
+	FlowCounter      prometheus.Counter
 )
 
 func init() {
 	log.Infof("Init prometheus metric...")
 	OnlineUsersGauge = prometheus.NewGauge(prometheus.GaugeOpts{
-		Name: "online_users",
+		Name: "gateway_online_users",
 		Help: "Total number of online users",
 	})
 	prometheus.MustRegister(OnlineUsersGauge)
+
+	FlowCounter = prometheus.NewCounter(prometheus.CounterOpts{
+		Name: "gateway_flow_counter",
+		Help: "Total number of flow",
+	})
+	prometheus.MustRegister(FlowCounter)
 }

internal/grpc_server/server.go

@@ -5,6 +5,7 @@ import (
 	"git.hlsq.asia/mmorpg/service-common/log"
 	"git.hlsq.asia/mmorpg/service-common/proto/rs/grpc_pb"
 	"git.hlsq.asia/mmorpg/service-common/proto/ss/ss_pb"
+	"git.hlsq.asia/mmorpg/service-gateway/internal/global"
 	"git.hlsq.asia/mmorpg/service-gateway/internal/handler/ws_handler/client"
 	"google.golang.org/protobuf/proto"
 	"sync"
@@ -39,8 +40,10 @@ func (s *Server) ToClient(server grpc_pb.Gateway_ToClientServer) error {
 						log.Errorf("ToClient proto.Marshal error: %v", err)
 						continue
 					}
+					dataLen := float64(len(data))
 					for _, cli := range client.UserMgr.GetAll() {
 						cli.WriteBytesPreMarshal(data)
+						global.FlowCounter.Add(dataLen)
 					}
 
 					//for _, client := range ws_handler.UserMgr.GetAll() {
@@ -49,6 +52,7 @@ func (s *Server) ToClient(server grpc_pb.Gateway_ToClientServer) error {
 				} else {
 					if cli := client.UserMgr.GetByUSN(args.USN); cli != nil {
 						cli.WriteBytes(ss_pb.MessageID(args.MessageID), args.Payload)
+						global.FlowCounter.Add(float64(len(args.Payload)))
 					}
 				}
 			}

internal/grpc_server/server_init.go

@@ -21,11 +21,16 @@ func NewServer(ttl int64) *Server {
 			EtcdTTL:     ttl,
 		},
 	}
+	s.Base.OnCustomGrpcServerOption = s.OnCustomGrpcServerOption
 	s.Base.OnInit = s.OnInit
 	s.Base.OnClose = s.OnClose
 	return s
 }
 
+func (s *Server) OnCustomGrpcServerOption() []grpc.ServerOption {
+	return nil
+}
+
 func (s *Server) OnInit(serve *grpc.Server) {
 	client.GatewaySID = s.SID
 	grpc_pb.RegisterGatewayServer(serve, s)