Fix session bug

go.mod

@@ -14,7 +14,6 @@ require (
 	github.com/go-chi/httplog v0.2.5
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da
 	github.com/google/uuid v1.3.1
-	github.com/gorilla/mux v1.8.1
 	github.com/gorilla/sessions v1.2.0
 	github.com/gorilla/websocket v1.5.0
 	github.com/icza/bitio v1.1.0

go.sum

@@ -455,8 +455,6 @@ github.com/googleapis/gax-go/v2 v2.11.0 h1:9V9PWXEsWnPpQhu/PeQIkS4eGzMlTLGgt80cU
 github.com/googleapis/gax-go/v2 v2.11.0/go.mod h1:DxmR61SGKkGLa2xigwuZIQpkCI2S5iydzRfb3peWZJI=
 github.com/googleapis/google-cloud-go-testing v0.0.0-20200911160855-bcd43fbb19e8/go.mod h1:dvDLG8qkwmyD9a/MJJN3XJcT3xFxOKAvTZGvuZmac9g=
 github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
-github.com/gorilla/mux v1.8.1 h1:TuBL49tXwgrFYWhqrNgrUNEY92u81SPhu7sTdzQEiWY=
-github.com/gorilla/mux v1.8.1/go.mod h1:AKf9I4AEqPTmMytcMc0KkNouC66V3BtZ4qD5fmWSiMQ=
 github.com/gorilla/securecookie v1.1.1 h1:miw7JPhV+b/lAHSXz4qd/nN9jRiAFV5FwjeKyCS8BvQ=
 github.com/gorilla/securecookie v1.1.1/go.mod h1:ra0sb63/xPlUeL+yeDciTfxMRAA+MP+HVt/4epWDjd4=
 github.com/gorilla/sessions v1.2.0 h1:S7P+1Hm5V/AT9cjEcUD5uDaQSX0OE577aCXgoaKpYbQ=

middleware/monitoring/sentry.go

@@ -19,10 +19,11 @@
 package monitoring
 
 import (
+	"net/http"
+
 	sentryhttp "github.com/getsentry/sentry-go/http"
-	"github.com/gorilla/mux"
 )
 
-func Middleware() mux.MiddlewareFunc {
+func Middleware() func(http.Handler) http.Handler {
 	return sentryhttp.New(sentryhttp.Options{}).Handle
 }

server/server.go

@@ -21,16 +21,17 @@ package main
 import (
 	"context"
 	"fmt"
-	"github.com/dapperlabs/flow-playground-api"
+	"log"
+	"net/http"
+	"strings"
+	"time"
+
+	playground "github.com/dapperlabs/flow-playground-api"
 	"github.com/dapperlabs/flow-playground-api/server/config"
 	"github.com/dapperlabs/flow-playground-api/server/ping"
 	"github.com/dapperlabs/flow-playground-api/telemetry"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
 	"go.opentelemetry.io/otel/sdk/trace"
-	"log"
-	"net/http"
-	"strings"
-	"time"
 
 	"github.com/go-chi/httplog"
 
@@ -170,7 +171,6 @@ func main() {
 
 		r.Use(httpcontext.Middleware())
 		r.Use(sessions.Middleware(cookieStore))
-		r.Use(monitoring.Middleware())
 
 		r.Handle(
 			"/",