add AlreadyHaveResult function

api.go

@@ -54,6 +54,12 @@ func (e *Engine) POST(uri string, handler Handler) {
 	e.Engine.POST(uri, h)
 }
 
+func (e *Engine) GET(uri string, handler Handler) {
+	h := handlerWrapper(handler)
+	log.Infof("api handler [%v] registor success", handler)
+	e.Engine.GET(uri, h)
+}
+
 // handlerWrapper
 func handlerWrapper(handler Handler) gin.HandlerFunc {
 	handlerFunc := handler.HandlerFunc()

context.go

@@ -120,7 +120,14 @@ func (c *Context) SetCookie(cookie *http.Cookie) {
 	http.SetCookie(c.Writer, cookie)
 }
 
+func (c *Context) AlreadyHaveResult() (done bool, entry string) {
+	return c.resultentry != "", c.resultentry
+}
+
 func (c *Context) RESULT(output interface{}) error {
+	if c.resultentry == "" {
+		c.resultentry = "RESULT"
+	}
 	var t = reflect.TypeOf(output)
 	defer func(o *interface{}) {
 		b, err := json.Marshal(o)
@@ -149,7 +156,6 @@ func (c *Context) RESULT(output interface{}) error {
 		cost := time.Now().Sub(c.starttime).Milliseconds()
 		noticeStr := fmt.Sprintf("cost: %dms, output: '%s'", cost, string(b))
 		log.NoticefWithDepth(calldepth, noticeStr)
-
 	}(&output)
 
 	if _, ok := t.FieldByName("ErrCode"); !ok {

prometheus.go

@@ -15,9 +15,10 @@ import (
 var (
 	MetricExporterPusher                         = func() error { return nil }
 	MetricExporterHandler Handler                = nil
-	metricRegistry        *prometheus.Registry   = nil
+	MetricRegistry        *prometheus.Registry   = nil
 	metricApiCounter      *prometheus.CounterVec = nil
 	metricApiSummary      *prometheus.SummaryVec = nil
+	instance              string                 = "--unknown--"
 )
 
 type metricExporterHandler struct {
@@ -41,7 +42,6 @@ func dumpMetricExporterPusher() error {
 }
 
 func InitMetrics(instanceValue string) {
-	var instance = instanceValue
 	if instanceValue == "" {
 		instance = getInstanceIpAddress()
 	} else if ap := strings.Split(instanceValue, ":"); len(ap) == 2 &&
@@ -52,25 +52,25 @@ func InitMetrics(instanceValue string) {
 
 	metricApiCounter = prometheus.NewCounterVec(
 		prometheus.CounterOpts{
-			Name:        "api_requests_total",
+			Name: "api_requests_total",
-			Help:        "How many HTTP requests processed",
+			Help: "How many HTTP requests processed",
-			ConstLabels: prometheus.Labels{"instance": instance},
+			//ConstLabels: prometheus.Labels{"instance": instance},
 		},
 		[]string{"api", "errcode", "appid"},
 	)
 	metricApiSummary = prometheus.NewSummaryVec(
 		prometheus.SummaryOpts{
-			Name:        "api_requests_summary",
+			Name:       "api_requests_summary",
-			Help:        "The api request summary of cost.",
+			Help:       "The api request summary of cost.",
-			Objectives:  map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
+			Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
-			ConstLabels: prometheus.Labels{"instance": instance},
+			//ConstLabels: prometheus.Labels{"instance": instance},
 		},
 		[]string{"api", "errcode", "appid"},
 	)
 
-	metricRegistry = prometheus.NewRegistry()
+	MetricRegistry = prometheus.NewRegistry()
-	metricRegistry.MustRegister(metricApiCounter)
+	MetricRegistry.MustRegister(metricApiCounter)
-	metricRegistry.MustRegister(metricApiSummary)
+	MetricRegistry.MustRegister(metricApiSummary)
 }
 
 func SetupMetricsExporterHandler(apiname string) {
@@ -78,10 +78,10 @@ func SetupMetricsExporterHandler(apiname string) {
 		apiname = "premetheus_metrics_exporter"
 	}
 
-	opt := promhttp.HandlerOpts{Registry: metricRegistry}
+	opt := promhttp.HandlerOpts{Registry: MetricRegistry}
 	MetricExporterHandler = &metricExporterHandler{
 		name:            apiname,
-		promhttpHandler: promhttp.HandlerFor(metricRegistry, opt),
+		promhttpHandler: promhttp.HandlerFor(MetricRegistry, opt),
 	}
 }
 
@@ -90,7 +90,11 @@ func SetupMetricsExporterPusher(pushgateway string, jobname string) {
 		jobname = fmt.Sprintf("api-metrics-job-%s", getExeFilename())
 	}
 
-	var pusher = push.New(pushgateway, jobname).Gatherer(metricRegistry)
+	var pusher = push.
+		New(pushgateway, jobname).
+		Grouping("instance", instance).
+		Gatherer(MetricRegistry)
+
 	MetricExporterPusher = func() error {
 		RecordMetrics("push_metrics_to_prometheus", "0", "selfmonitoring", 1.0)
 		return pusher.Push()

routes.go

@@ -47,6 +47,7 @@ type Handler interface {
 type HandlerFunc func(*Context) error
 
 type IRoutes interface {
+	GET(uri string, handler Handler)
 	POST(uri string, handler Handler)
 }