Redis + go

go.mod

module github.com/amitsaha/redis-demo

go 1.12

require github.com/go-redis/redis v6.15.2+incompatible

go.sum

github.com/go-redis/redis v6.15.2+incompatible h1:9SpNVG76gr6InJGxoZ6IuuxaCOQwDAhzyXg+Bs+0Sb4=
github.com/go-redis/redis v6.15.2+incompatible/go.mod h1:NAIEuMOZ/fxfXJIrKDQDz8wamY7mA7PouImQ2Jvg6kA=

main.go

package main

import (
	"fmt"
	"log"
	"time"

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

func main() {
	ExampleZListClient()
}

func ExampleNewClient() {
	client := redis.NewClient(&redis.Options{
		Addr:     "localhost:6379",
		Password: "password", // no password set
		DB:       0,          // use default DB
	})
	start := time.Now()
	pong, err := client.Ping().Result()
	fmt.Println(time.Since(start))
	fmt.Println(pong, err)
	// Output: PONG <nil>
}

func ExampleZListClient() {
	client := redis.NewClient(&redis.Options{
		Addr:     "localhost:6379",
		Password: "", // no password set
		DB:       0,          // use default DB
	})

	tags := map[string]float64{
		"AFK":   3,
		"GTG":   1,
		"SAC":   2,
		"BRB":   1,
		"GTFO":  1,
		"LOL":   1,
		"LMAO":  1,
		"GLHF":  1,
		"SMH":   1,
		"ROTFL": 1,
	}

	for tag, score := range tags {
		_, err := client.ZAdd("tags", redis.Z{score, tag}).Result()
		if err != nil {
			log.Fatalf("Error adding %s: %v", tag, err)
		}
	}

	result, err := client.ZRevRangeWithScores("tags", 0, 6).Result()
	if err != nil {
		log.Fatalf("Error retrieving top 5 keys: %v", err)
	}
	for _, zItem := range result {
		log.Printf("%v\n", zItem)
	}
}

func ExampleClient() {
	client := redis.NewClient(&redis.Options{
		Addr:     "localhost:6379",
		Password: "password", // no password set
		DB:       0,          // use default DB
	})

	err := client.Set("key", "value", 0).Err()
	if err != nil {
		panic(err)
	}

	val, err := client.Get("key").Result()
	if err != nil {
		panic(err)
	}
	fmt.Println("key", val)

	val2, err := client.Get("key2").Result()
	if err == redis.Nil {
		fmt.Println("key2 does not exist")
	} else if err != nil {
		panic(err)
	} else {
		fmt.Println("key2", val2)
	}
	// Output: key value
	// key2 does not exist
}