Init

example/otel/client.go

@@ -0,0 +1,91 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"sync"
+	"time"
+
+	"github.com/uptrace/uptrace-go/uptrace"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/codes"
+
+	"github.com/redis/go-redis/extra/redisotel/v9"
+	"github.com/redis/go-redis/v9"
+)
+
+var tracer = otel.Tracer("github.com/redis/go-redis/example/otel")
+
+func main() {
+	ctx := context.Background()
+
+	uptrace.ConfigureOpentelemetry(
+		// copy your project DSN here or use UPTRACE_DSN env var
+		uptrace.WithDSN("http://project2_secret_token@localhost:14317/2"),
+
+		uptrace.WithServiceName("myservice"),
+		uptrace.WithServiceVersion("v1.0.0"),
+	)
+	defer uptrace.Shutdown(ctx)
+
+	rdb := redis.NewClient(&redis.Options{
+		Addr: ":6379",
+	})
+	if err := redisotel.InstrumentTracing(rdb); err != nil {
+		panic(err)
+	}
+	if err := redisotel.InstrumentMetrics(rdb); err != nil {
+		panic(err)
+	}
+
+	for i := 0; i < 1e6; i++ {
+		ctx, rootSpan := tracer.Start(ctx, "handleRequest")
+
+		if err := handleRequest(ctx, rdb); err != nil {
+			rootSpan.RecordError(err)
+			rootSpan.SetStatus(codes.Error, err.Error())
+		}
+
+		rootSpan.End()
+
+		if i == 0 {
+			fmt.Printf("view trace: %s\n", uptrace.TraceURL(rootSpan))
+		}
+
+		time.Sleep(time.Second)
+	}
+}
+
+func handleRequest(ctx context.Context, rdb *redis.Client) error {
+	if err := rdb.Set(ctx, "First value", "value_1", 0).Err(); err != nil {
+		return err
+	}
+	if err := rdb.Set(ctx, "Second value", "value_2", 0).Err(); err != nil {
+		return err
+	}
+
+	var group sync.WaitGroup
+
+	for i := 0; i < 20; i++ {
+		group.Add(1)
+		go func() {
+			defer group.Done()
+			val := rdb.Get(ctx, "Second value").Val()
+			if val != "value_2" {
+				log.Printf("%q != %q", val, "value_2")
+			}
+		}()
+	}
+
+	group.Wait()
+
+	if err := rdb.Del(ctx, "First value").Err(); err != nil {
+		return err
+	}
+	if err := rdb.Del(ctx, "Second value").Err(); err != nil {
+		return err
+	}
+
+	return nil
+}