Example of how to call metrics (#5621)

app/session.go

@@ -4,10 +4,10 @@
 package app
 
 import (
-	"net/http"
 	"github.com/mattermost/platform/einterfaces"
 	"github.com/mattermost/platform/model"
 	"github.com/mattermost/platform/utils"
+	"net/http"
 
 	l4g "github.com/alecthomas/log4go"
 )
@@ -33,11 +33,11 @@ func GetSession(token string) (*model.Session, *model.AppError) {
 	if ts, ok := sessionCache.Get(token); ok {
 		session = ts.(*model.Session)
 		if metrics != nil {
-			metrics.IncrementMemCacheHitCounter("Session")
+			metrics.IncrementMemCacheHitCounterSession()
 		}
 	} else {
 		if metrics != nil {
-			metrics.IncrementMemCacheMissCounter("Session")
+			metrics.IncrementMemCacheMissCounterSession()
 		}
 	}
 

einterfaces/metrics.go

@@ -29,6 +29,8 @@ type MetricsInterface interface {
 
 	IncrementMemCacheHitCounter(cacheName string)
 	IncrementMemCacheMissCounter(cacheName string)
+	IncrementMemCacheMissCounterSession()
+	IncrementMemCacheHitCounterSession()
 
 	IncrementWebsocketEvent(eventType string)