package main

import (
	"context"
	"fmt"
	"github.com/go-redis/redis/v9"
)

func main() {
	opt, err := redis.ParseURL("redis://default:yourPassword@192.168.157.135:6379/0?dial_timeout=1")
	if err != nil {
		panic(err)
	}

	client := redis.NewClient(opt)

	ctx := context.Background()

	val, _ := client.Get(ctx, "someKey").Result()
	fmt.Printf("%#v", val) // ""

	val, err := client.Get(ctx, "someKey").Result()
	switch {
	case err == redis.Nil:
		fmt.Println("key does not exist")
	case err != nil:
		fmt.Println("Get failed", err)
	case val == "":
		fmt.Println("value is empty")
	}

}