migrate orion repo into monorepo structure

go/internal/redis.go

@@ -0,0 +1,46 @@
+package internal
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+	"os"
+
+	"github.com/flowy-live/llink/internal/utils"
+	"github.com/redis/go-redis/v9"
+)
+
+func ConnectAndTestRedis(db int) *redis.Client {
+	redisHost := utils.MustGetEnv("REDIS_HOST")
+	if redisHost == "" {
+		slog.Error("must provide REDIS_HOST")
+		os.Exit(1)
+	}
+	redisAddr := fmt.Sprintf("%s:%s", redisHost, "6379")
+	rdb := redis.NewClient(&redis.Options{
+		Addr:     redisAddr,
+		Password: "", // no password set
+		DB:       db,
+	})
+
+	err := rdb.Set(context.Background(), "key", "value", 0).Err()
+	if err != nil {
+		panic(err)
+	}
+
+	val, err := rdb.Get(context.Background(), "key").Result()
+	if err != nil {
+		panic(err)
+	}
+	slog.Debug("redis test", "key", val)
+	if val != "value" {
+		panic("unexpected value")
+	}
+
+	err = rdb.Del(context.Background(), "key").Err()
+	if err != nil {
+		panic(err)
+	}
+
+	return rdb
+}