feat(observabillity): #115 add traces

2025-06-07 12:07:13 +02:00
parent 587de563f9
commit 1fc66eca61
12 changed files with 137 additions and 47 deletions
--- a/go.mod
+++ b/go.mod
@@ -17,6 +17,7 @@ require (
 	go.opentelemetry.io/otel v1.36.0
 	go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc v0.12.2
 	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.36.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.36.0
 	go.opentelemetry.io/otel/exporters/stdout/stdoutlog v0.12.2
 	go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v1.36.0
 	go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.36.0
@@ -43,6 +44,7 @@ require (
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/stretchr/objx v0.5.2 // indirect
 	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.36.0 // indirect
 	go.opentelemetry.io/otel/metric v1.36.0 // indirect
 	go.opentelemetry.io/otel/trace v1.36.0 // indirect
 	go.opentelemetry.io/proto/otlp v1.6.0 // indirect
--- a/go.sum
+++ b/go.sum
@@ -61,6 +61,10 @@ go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc v0.12.2 h1:06ZeJRe5B
 go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc v0.12.2/go.mod h1:DvPtKE63knkDVP88qpatBj81JxN+w1bqfVbsbCbj1WY=
 go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.36.0 h1:zwdo1gS2eH26Rg+CoqVQpEK1h8gvt5qyU5Kk5Bixvow=
 go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.36.0/go.mod h1:rUKCPscaRWWcqGT6HnEmYrK+YNe5+Sw64xgQTOJ5b30=
+go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.36.0 h1:dNzwXjZKpMpE2JhmO+9HsPl42NIXFIFSUSSs0fiqra0=
+go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.36.0/go.mod h1:90PoxvaEB5n6AOdZvi+yWJQoE95U8Dhhw2bSyRqnTD0=
+go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.36.0 h1:JgtbA0xkWHnTmYk7YusopJFX6uleBmAuZ8n05NEh8nQ=
+go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.36.0/go.mod h1:179AK5aar5R3eS9FucPy6rggvU0g52cvKId8pv4+v0c=
 go.opentelemetry.io/otel/exporters/stdout/stdoutlog v0.12.2 h1:12vMqzLLNZtXuXbJhSENRg+Vvx+ynNilV8twBLBsXMY=
 go.opentelemetry.io/otel/exporters/stdout/stdoutlog v0.12.2/go.mod h1:ZccPZoPOoq8x3Trik/fCsba7DEYDUnN6yX79pgp2BUQ=
 go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v1.36.0 h1:rixTyDGXFxRy1xzhKrotaHy3/KXdPhlWARrCgK+eqUY=
--- a/internal/default.go
+++ b/internal/default.go
@@ -48,11 +48,12 @@ func Run(ctx context.Context, database *sqlx.DB, migrationsPrefix string, env fu
 		}
 		defer func() {
 			// User context.Background(), as the main context is already cancelled
-			ctx, _ := context.WithTimeout(context.Background(), 5*time.Second)
+			ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
 			err = otelShutdown(ctx)
 			if err != nil {
 				log.L.Error("error shutting down OpenTelemetry SDK", "err", err)
 			}
+			cancel()
 		}()

 		log.InitOtelLogger()
@@ -143,9 +144,7 @@ func createHandler(d *sqlx.DB, serverSettings *types.Settings) http.Handler {
 		middleware.Log,
 	)

-	if serverSettings.OtelEnabled {
-		wrapper = otelhttp.NewHandler(wrapper, "/")
-	}
+	wrapper = otelhttp.NewHandler(wrapper, "http.request")

 	return wrapper
 }
--- a/internal/handler/account.go
+++ b/internal/handler/account.go
@@ -36,6 +36,8 @@ func (h AccountImpl) Handle(r *http.ServeMux) {

 func (h AccountImpl) handleAccountPage() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		user := middleware.GetUser(r)
 		if user == nil {
 			utils.DoRedirect(w, r, "/auth/signin")
@@ -55,6 +57,8 @@ func (h AccountImpl) handleAccountPage() http.HandlerFunc {

 func (h AccountImpl) handleAccountItemComp() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		user := middleware.GetUser(r)
 		if user == nil {
 			utils.DoRedirect(w, r, "/auth/signin")
@@ -86,6 +90,8 @@ func (h AccountImpl) handleAccountItemComp() http.HandlerFunc {

 func (h AccountImpl) handleUpdateAccount() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		user := middleware.GetUser(r)
 		if user == nil {
 			utils.DoRedirect(w, r, "/auth/signin")
@@ -119,6 +125,8 @@ func (h AccountImpl) handleUpdateAccount() http.HandlerFunc {

 func (h AccountImpl) handleDeleteAccount() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		user := middleware.GetUser(r)
 		if user == nil {
 			utils.DoRedirect(w, r, "/auth/signin")
--- a/internal/handler/auth.go
+++ b/internal/handler/auth.go
@@ -59,6 +59,8 @@ var (

 func (handler AuthImpl) handleSignInPage() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		user := middleware.GetUser(r)
 		if user != nil {
 			if !user.EmailVerified {
@@ -77,6 +79,8 @@ func (handler AuthImpl) handleSignInPage() http.HandlerFunc {

 func (handler AuthImpl) handleSignIn() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		user, err := utils.WaitMinimumTime(securityWaitDuration, func() (*types.User, error) {
 			session := middleware.GetSession(r)
 			email := r.FormValue("email")
@@ -112,6 +116,8 @@ func (handler AuthImpl) handleSignIn() http.HandlerFunc {

 func (handler AuthImpl) handleSignUpPage() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		user := middleware.GetUser(r)

 		if user != nil {
@@ -130,6 +136,8 @@ func (handler AuthImpl) handleSignUpPage() http.HandlerFunc {

 func (handler AuthImpl) handleSignUpVerifyPage() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		user := middleware.GetUser(r)
 		if user == nil {
 			utils.DoRedirect(w, r, "/auth/signin")
@@ -148,6 +156,8 @@ func (handler AuthImpl) handleSignUpVerifyPage() http.HandlerFunc {

 func (handler AuthImpl) handleVerifyResendComp() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		user := middleware.GetUser(r)
 		if user == nil {
 			utils.DoRedirect(w, r, "/auth/signin")
@@ -165,6 +175,8 @@ func (handler AuthImpl) handleVerifyResendComp() http.HandlerFunc {

 func (handler AuthImpl) handleSignUpVerifyResponsePage() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		token := r.URL.Query().Get("token")

 		err := handler.service.VerifyUserEmail(token)
@@ -185,10 +197,12 @@ func (handler AuthImpl) handleSignUpVerifyResponsePage() http.HandlerFunc {

 func (handler AuthImpl) handleSignUp() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		var email = r.FormValue("email")
 		var password = r.FormValue("password")

-		_, err := utils.WaitMinimumTime(securityWaitDuration, func() (interface{}, error) {
+		_, err := utils.WaitMinimumTime(securityWaitDuration, func() (any, error) {
 			log.L.Info("signing up", "email", email)
 			user, err := handler.service.SignUp(email, password)
 			if err != nil {
@@ -221,6 +235,8 @@ func (handler AuthImpl) handleSignUp() http.HandlerFunc {

 func (handler AuthImpl) handleSignOut() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		session := middleware.GetSession(r)

 		if session != nil {
@@ -248,6 +264,8 @@ func (handler AuthImpl) handleSignOut() http.HandlerFunc {

 func (handler AuthImpl) handleDeleteAccountPage() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		user := middleware.GetUser(r)
 		if user == nil {
 			utils.DoRedirect(w, r, "/auth/signin")
@@ -261,6 +279,8 @@ func (handler AuthImpl) handleDeleteAccountPage() http.HandlerFunc {

 func (handler AuthImpl) handleDeleteAccountComp() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		user := middleware.GetUser(r)
 		if user == nil {
 			utils.DoRedirect(w, r, "/auth/signin")
@@ -285,6 +305,8 @@ func (handler AuthImpl) handleDeleteAccountComp() http.HandlerFunc {

 func (handler AuthImpl) handleChangePasswordPage() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		isPasswordReset := r.URL.Query().Has("token")

 		user := middleware.GetUser(r)
@@ -301,6 +323,8 @@ func (handler AuthImpl) handleChangePasswordPage() http.HandlerFunc {

 func (handler AuthImpl) handleChangePasswordComp() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		session := middleware.GetSession(r)
 		user := middleware.GetUser(r)
 		if session == nil || user == nil {
@@ -323,6 +347,8 @@ func (handler AuthImpl) handleChangePasswordComp() http.HandlerFunc {

 func (handler AuthImpl) handleForgotPasswordPage() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		user := middleware.GetUser(r)
 		if user != nil {
 			utils.DoRedirect(w, r, "/")
@@ -336,13 +362,15 @@ func (handler AuthImpl) handleForgotPasswordPage() http.HandlerFunc {

 func (handler AuthImpl) handleForgotPasswordComp() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		email := r.FormValue("email")
 		if email == "" {
 			utils.TriggerToastWithStatus(w, r, "error", "Please enter an email", http.StatusBadRequest)
 			return
 		}

-		_, err := utils.WaitMinimumTime(securityWaitDuration, func() (interface{}, error) {
+		_, err := utils.WaitMinimumTime(securityWaitDuration, func() (any, error) {
 			err := handler.service.SendForgotPasswordMail(email)
 			return nil, err
 		})
@@ -357,6 +385,8 @@ func (handler AuthImpl) handleForgotPasswordComp() http.HandlerFunc {

 func (handler AuthImpl) handleForgotPasswordResponseComp() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		pageUrl, err := url.Parse(r.Header.Get("Hx-Current-Url"))
 		if err != nil {
 			log.L.Error("Could not get current URL", "err", err)
--- a/internal/handler/default.go
+++ b/internal/handler/default.go
@@ -7,6 +7,9 @@ import (
 	"spend-sparrow/internal/service"
 	"spend-sparrow/internal/utils"
 	"strings"
+
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/trace"
 )

 func handleError(w http.ResponseWriter, r *http.Request, err error) {
@@ -33,3 +36,11 @@ func extractErrorMessage(err error) string {

 	return strings.SplitN(errMsg, ":", 2)[0]
 }
+
+func updateSpan(r *http.Request) {
+	currentSpan := trace.SpanFromContext(r.Context())
+	if currentSpan != nil {
+		currentSpan.SetAttributes(attribute.String("http.pattern", r.Pattern))
+		currentSpan.SetAttributes(attribute.String("http.pattern.id", r.PathValue("id")))
+	}
+}
--- a/internal/handler/middleware/logger.go
+++ b/internal/handler/middleware/logger.go
@@ -20,6 +20,8 @@ func Log(next http.Handler) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		start := time.Now()

+		log.L.Info("request pattern", "pattern", r.Pattern)
+
 		wrapped := &WrappedWriter{
 			ResponseWriter: w,
 			StatusCode:     http.StatusOK,
--- a/internal/handler/root_and_404.go
+++ b/internal/handler/root_and_404.go
@@ -29,6 +29,8 @@ func (handler IndexImpl) Handle(router *http.ServeMux) {

 func (handler IndexImpl) handleRootAnd404() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		user := middleware.GetUser(r)

 		var comp templ.Component
@@ -52,6 +54,8 @@ func (handler IndexImpl) handleRootAnd404() http.HandlerFunc {

 func (handler IndexImpl) handleEmpty() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		// Return nothing
 	}
 }
--- a/internal/handler/transaction.go
+++ b/internal/handler/transaction.go
@@ -13,6 +13,8 @@ import (

 	"github.com/a-h/templ"
 	"github.com/google/uuid"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/trace"
 )

 type Transaction interface {
@@ -45,12 +47,17 @@ func (h TransactionImpl) Handle(r *http.ServeMux) {

 func (h TransactionImpl) handleTransactionPage() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		user := middleware.GetUser(r)
 		if user == nil {
 			utils.DoRedirect(w, r, "/auth/signin")
 			return
 		}

+		currentSpan := trace.SpanFromContext(r.Context())
+		currentSpan.SetAttributes(attribute.String("", "test"))
+
 		filter := types.TransactionItemsFilter{
 			AccountId:       r.URL.Query().Get("account-id"),
 			TreasureChestId: r.URL.Query().Get("treasure-chest-id"),
@@ -89,12 +96,16 @@ func (h TransactionImpl) handleTransactionPage() http.HandlerFunc {

 func (h TransactionImpl) handleTransactionItemComp() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		user := middleware.GetUser(r)
 		if user == nil {
 			utils.DoRedirect(w, r, "/auth/signin")
 			return
 		}

+		// log.L.Info("request", "pattern", r.Pattern, "path", r.URL.Path, "method", r.Method, "path", r.URL.Path)
+
 		accounts, err := h.account.GetAll(user)
 		if err != nil {
 			handleError(w, r, err)
@@ -133,6 +144,8 @@ func (h TransactionImpl) handleTransactionItemComp() http.HandlerFunc {

 func (h TransactionImpl) handleUpdateTransaction() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		user := middleware.GetUser(r)
 		if user == nil {
 			utils.DoRedirect(w, r, "/auth/signin")
@@ -233,6 +246,8 @@ func (h TransactionImpl) handleUpdateTransaction() http.HandlerFunc {

 func (h TransactionImpl) handleRecalculate() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		user := middleware.GetUser(r)
 		if user == nil {
 			utils.DoRedirect(w, r, "/auth/signin")
@@ -251,6 +266,8 @@ func (h TransactionImpl) handleRecalculate() http.HandlerFunc {

 func (h TransactionImpl) handleDeleteTransaction() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		user := middleware.GetUser(r)
 		if user == nil {
 			utils.DoRedirect(w, r, "/auth/signin")
--- a/internal/handler/transaction_recurring.go
+++ b/internal/handler/transaction_recurring.go
@@ -33,6 +33,8 @@ func (h TransactionRecurringImpl) Handle(r *http.ServeMux) {

 func (h TransactionRecurringImpl) handleTransactionRecurringItemComp() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		user := middleware.GetUser(r)
 		if user == nil {
 			utils.DoRedirect(w, r, "/auth/signin")
@@ -48,6 +50,8 @@ func (h TransactionRecurringImpl) handleTransactionRecurringItemComp() http.Hand

 func (h TransactionRecurringImpl) handleUpdateTransactionRecurring() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		user := middleware.GetUser(r)
 		if user == nil {
 			utils.DoRedirect(w, r, "/auth/signin")
@@ -85,6 +89,8 @@ func (h TransactionRecurringImpl) handleUpdateTransactionRecurring() http.Handle

 func (h TransactionRecurringImpl) handleDeleteTransactionRecurring() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		user := middleware.GetUser(r)
 		if user == nil {
 			utils.DoRedirect(w, r, "/auth/signin")
--- a/internal/handler/treasure_chest.go
+++ b/internal/handler/treasure_chest.go
@@ -40,6 +40,8 @@ func (h TreasureChestImpl) Handle(r *http.ServeMux) {

 func (h TreasureChestImpl) handleTreasureChestPage() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		user := middleware.GetUser(r)
 		if user == nil {
 			utils.DoRedirect(w, r, "/auth/signin")
@@ -67,6 +69,8 @@ func (h TreasureChestImpl) handleTreasureChestPage() http.HandlerFunc {

 func (h TreasureChestImpl) handleTreasureChestItemComp() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		user := middleware.GetUser(r)
 		if user == nil {
 			utils.DoRedirect(w, r, "/auth/signin")
@@ -112,6 +116,8 @@ func (h TreasureChestImpl) handleTreasureChestItemComp() http.HandlerFunc {

 func (h TreasureChestImpl) handleUpdateTreasureChest() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		user := middleware.GetUser(r)
 		if user == nil {
 			utils.DoRedirect(w, r, "/auth/signin")
@@ -155,6 +161,8 @@ func (h TreasureChestImpl) handleUpdateTreasureChest() http.HandlerFunc {

 func (h TreasureChestImpl) handleDeleteTreasureChest() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		updateSpan(r)
+
 		user := middleware.GetUser(r)
 		if user == nil {
 			utils.DoRedirect(w, r, "/auth/signin")
--- a/internal/otel.go
+++ b/internal/otel.go
@@ -8,12 +8,16 @@ import (
 	"go.opentelemetry.io/otel"
 	"go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc"
 	// "go.opentelemetry.io/otel/exporters/stdout/stdoutlog".
-	// "go.opentelemetry.io/otel/exporters/stdout/stdouttrace".
+	"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc"
 	// "go.opentelemetry.io/otel/log/global".
-	// "go.opentelemetry.io/otel/propagation".
+	"go.opentelemetry.io/otel/propagation"
 	// "go.opentelemetry.io/otel/sdk/log".
 	"go.opentelemetry.io/otel/sdk/metric"
-	// "go.opentelemetry.io/otel/sdk/trace"
+	"go.opentelemetry.io/otel/sdk/trace"
+)
+
+var (
+	otelEndpoint = "192.168.188.155:4317"
 )

 // setupOTelSDK bootstraps the OpenTelemetry pipeline.
@@ -40,17 +44,17 @@ func setupOTelSDK(ctx context.Context) (func(context.Context) error, error) {
 	}

 	// Set up propagator.
-	// prop := newPropagator()
-	// otel.SetTextMapPropagator(prop)
+	prop := newPropagator()
+	otel.SetTextMapPropagator(prop)

 	// Set up trace provider.
-	// tracerProvider, err := newTracerProvider()
-	// if err != nil {
-	// 	handleErr(err)
-	// 	return
-	// }
-	// shutdownFuncs = append(shutdownFuncs, tracerProvider.Shutdown)
-	// otel.SetTracerProvider(tracerProvider)
+	tracerProvider, err := newTracerProvider(ctx)
+	if err != nil {
+		handleErr(ctx, err)
+		return nil, err
+	}
+	shutdownFuncs = append(shutdownFuncs, tracerProvider.Shutdown)
+	otel.SetTracerProvider(tracerProvider)

 	// Set up meter provider.
 	meterProvider, err := newMeterProvider(ctx)
@@ -73,42 +77,37 @@ func setupOTelSDK(ctx context.Context) (func(context.Context) error, error) {
 	return shutdown, nil
 }

-// func newPropagator() propagation.TextMapPropagator {
-// 	return propagation.NewCompositeTextMapPropagator(
-// 		propagation.TraceContext{},
-// 		propagation.Baggage{},
-// 	)
-// }
+func newPropagator() propagation.TextMapPropagator {
+	return propagation.NewCompositeTextMapPropagator(
+		propagation.TraceContext{},
+		propagation.Baggage{},
+	)
+}

-// func newTracerProvider() (*trace.TracerProvider, error) {
-// 	traceExporter, err := stdouttrace.New(
-// 		stdouttrace.WithPrettyPrint())
-// 	if err != nil {
-// 		return nil, err
-// 	}
-//
-// 	tracerProvider := trace.NewTracerProvider(
-// 		trace.WithBatcher(traceExporter,
-// 			// Default is 5s. Set to 1s for demonstrative purposes.
-// 			trace.WithBatchTimeout(time.Second)),
-// 	)
-// 	return tracerProvider, nil
-// }
-
-func newMeterProvider(ctx context.Context) (*metric.MeterProvider, error) {
-	exp, err := otlpmetricgrpc.New(ctx,
-		otlpmetricgrpc.WithInsecure(),
-		otlpmetricgrpc.WithEndpoint("192.168.188.155:4317"))
+func newTracerProvider(ctx context.Context) (*trace.TracerProvider, error) {
+	exp, err := otlptracegrpc.New(ctx,
+		otlptracegrpc.WithEndpoint(otelEndpoint),
+		otlptracegrpc.WithInsecure(),
+	)
 	if err != nil {
 		return nil, err
 	}

-	meterProvider := metric.NewMeterProvider(
+	return trace.NewTracerProvider(trace.WithBatcher(exp)), nil
+}
+
+func newMeterProvider(ctx context.Context) (*metric.MeterProvider, error) {
+	exp, err := otlpmetricgrpc.New(ctx,
+		otlpmetricgrpc.WithInsecure(),
+		otlpmetricgrpc.WithEndpoint(otelEndpoint))
+	if err != nil {
+		return nil, err
+	}
+
+	return metric.NewMeterProvider(
 		metric.WithReader(
 			metric.NewPeriodicReader(
-				exp, metric.WithInterval(15*time.Second))))
-
-	return meterProvider, nil
+				exp, metric.WithInterval(15*time.Second)))), nil
 }

 // func newLoggerProvider() (*log.LoggerProvider, error) {