Move tracing to contrib

example/chat/server/server.go

@@ -8,7 +8,6 @@ import (
 
 	"github.com/99designs/gqlgen/example/chat"
 	"github.com/99designs/gqlgen/handler"
-	gqlopentracing "github.com/99designs/gqlgen/opentracing"
 	"github.com/gorilla/websocket"
 	"github.com/opentracing/opentracing-go"
 	"sourcegraph.com/sourcegraph/appdash"
@@ -21,8 +20,6 @@ func main() {
 
 	http.Handle("/", handler.Playground("Todo", "/query"))
 	http.Handle("/query", handler.GraphQL(chat.NewExecutableSchema(chat.New()),
-		handler.ResolverMiddleware(gqlopentracing.ResolverMiddleware()),
-		handler.RequestMiddleware(gqlopentracing.RequestMiddleware()),
 		handler.WebsocketUpgrader(websocket.Upgrader{
 			CheckOrigin: func(r *http.Request) bool {
 				return true

example/dataloader/server/server.go

@@ -3,72 +3,21 @@ package main
 import (
 	"log"
 	"net/http"
-	"net/url"
-	"time"
 
 	"github.com/99designs/gqlgen/example/dataloader"
 	"github.com/99designs/gqlgen/handler"
-	gqlopentracing "github.com/99designs/gqlgen/opentracing"
 	"github.com/go-chi/chi"
-	"github.com/opentracing-contrib/go-stdlib/nethttp"
-	"github.com/opentracing/opentracing-go"
-	"sourcegraph.com/sourcegraph/appdash"
-	appdashtracer "sourcegraph.com/sourcegraph/appdash/opentracing"
-	"sourcegraph.com/sourcegraph/appdash/traceapp"
 )
 
 func main() {
-	tracer := startAppdashServer()
-
 	router := chi.NewRouter()
-	router.Use(Opentracing(tracer))
 	router.Use(dataloader.LoaderMiddleware)
 
 	router.Handle("/", handler.Playground("Dataloader", "/query"))
 	router.Handle("/query", handler.GraphQL(
 		dataloader.NewExecutableSchema(dataloader.Config{Resolvers: &dataloader.Resolver{}}),
-		handler.ResolverMiddleware(gqlopentracing.ResolverMiddleware()),
-		handler.RequestMiddleware(gqlopentracing.RequestMiddleware()),
 	))
 
 	log.Println("connect to http://localhost:8082/ for graphql playground")
 	log.Fatal(http.ListenAndServe(":8082", router))
 }
-
-func Opentracing(tracer opentracing.Tracer) func(next http.Handler) http.Handler {
-	return func(next http.Handler) http.Handler {
-		return nethttp.Middleware(tracer, next)
-	}
-}
-
-func startAppdashServer() opentracing.Tracer {
-	memStore := appdash.NewMemoryStore()
-	store := &appdash.RecentStore{
-		MinEvictAge: 5 * time.Minute,
-		DeleteStore: memStore,
-	}
-
-	url, err := url.Parse("http://localhost:8700")
-	if err != nil {
-		log.Fatal(err)
-	}
-	tapp, err := traceapp.New(nil, url)
-	if err != nil {
-		log.Fatal(err)
-	}
-	tapp.Store = store
-	tapp.Queryer = memStore
-
-	go func() {
-		log.Fatal(http.ListenAndServe(":8700", tapp))
-	}()
-	tapp.Store = store
-	tapp.Queryer = memStore
-
-	collector := appdash.NewLocalCollector(store)
-	tracer := appdashtracer.NewTracer(collector)
-	opentracing.InitGlobalTracer(tracer)
-
-	log.Println("Appdash web UI running on HTTP :8700")
-	return tracer
-}