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About the developer

go-redis
11.4K Stars 1.5K Forks BSD 2-Clause "Simplified" License 1.9K Commits 122 Opened issues

Description

Type-safe Redis client for Golang

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All-in-one tool to optimize performance and monitor errors & logs

Redis client for Golang

build workflow PkgGoDev Documentation Chat

Ecosystem

Features

Installation

go-redis supports 2 last Go versions and requires a Go version with modules support. So make sure to initialize a Go module:

go mod init github.com/my/repo

And then install go-redis/v8 (note v8 in the import; omitting it is a popular mistake):

go get github.com/go-redis/redis/v8

Quickstart

import (
    "context"
    "github.com/go-redis/redis/v8"
)

var ctx = context.Background()

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

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

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

val2, err := rdb.Get(ctx, "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

}

Look and feel

Some corner cases:

// SET key value EX 10 NX
set, err := rdb.SetNX(ctx, "key", "value", 10*time.Second).Result()

// SET key value keepttl NX set, err := rdb.SetNX(ctx, "key", "value", redis.KeepTTL).Result()

// SORT list LIMIT 0 2 ASC vals, err := rdb.Sort(ctx, "list", &redis.Sort{Offset: 0, Count: 2, Order: "ASC"}).Result()

// ZRANGEBYSCORE zset -inf +inf WITHSCORES LIMIT 0 2 vals, err := rdb.ZRangeByScoreWithScores(ctx, "zset", &redis.ZRangeBy{ Min: "-inf", Max: "+inf", Offset: 0, Count: 2, }).Result()

// ZINTERSTORE out 2 zset1 zset2 WEIGHTS 2 3 AGGREGATE SUM vals, err := rdb.ZInterStore(ctx, "out", &redis.ZStore{ Keys: []string{"zset1", "zset2"}, Weights: []int64{2, 3} }).Result()

// EVAL "return {KEYS[1],ARGV[1]}" 1 "key" "hello" vals, err := rdb.Eval(ctx, "return {KEYS[1],ARGV[1]}", []string{"key"}, "hello").Result()

// custom command res, err := rdb.Do(ctx, "set", "key", "value").Result()

Run the test

go-redis will start a redis-server and run the test cases.

The paths of redis-server bin file and redis config file are defined in

main_test.go
:
var (
    redisServerBin, _  = filepath.Abs(filepath.Join("testdata", "redis", "src", "redis-server"))
    redisServerConf, _ = filepath.Abs(filepath.Join("testdata", "redis", "redis.conf"))
)

For local testing, you can change the variables to refer to your local files, or create a soft link to the corresponding folder for redis-server and copy the config file to

testdata/redis/
:
ln -s /usr/bin/redis-server ./go-redis/testdata/redis/src
cp ./go-redis/testdata/redis.conf ./go-redis/testdata/redis/

Lastly, run:

go test

See also

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