Handling SliceCmd in go-redis [Go]

redis.go

package main

import (
	"context"
	"fmt"
	"log"

	"github.com/go-redis/redis/v8"
)

type (
	Sentinel struct {
		Name string
		Addr string
	}

	KeyVal struct {
		Key string
		Val string
	}
)

func main() {
	ctx := context.Background()

	r := redis.NewSentinelClient(&redis.Options{
		Addr: "dbatest-db-redis-pp-rs-02.qasql.opentable.com:26379",
	})

	res, err := r.Ping(ctx).Result()
	fmt.Println(res, err)

	//ms, err := r.Masters(ctx).Result()
	cmd := r.Sentinels(ctx, "dbatest")
	kvs, err := ToKeyVal(cmd)
	if err != nil {
		log.Fatal(err)
	}

	var ss []Sentinel
	for _, kv := range kvs {
		s := Sentinel{}
		for _, v := range kv {
			switch v.Key {
			case "ip":
				s.Addr = v.Val
			case "name":
				s.Name = v.Val
			}
		}
		ss = append(ss, s)
	}
	fmt.Println(ss)
}

func ToKeyVal(cmd *redis.SliceCmd) ([][]KeyVal, error) {
	var res [][]KeyVal

	xss, err := cmd.Result()
	if err != nil {
		return nil, err
	}

	for _, xs := range xss {
		xs := xs.([]interface{})
		var kvs []KeyVal
		for i := 0; i < len(xs)/2; i += 2 {
			key := xs[i].(string)
			val := xs[i+1].(string)
			kvs = append(kvs, KeyVal{
				Key: key,
				Val: val,
			})
		}
		res = append(res, kvs)
	}

	return res, nil
}