# Redis client for Golang [](https://travis-ci.org/go-redis/redis) [](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc) [](https://redis.uptrace.dev/) [](https://discord.gg/rWtp5Aj) - Join [Discord](https://discord.gg/rWtp5Aj) to ask questions. - [Documentation](https://redis.uptrace.dev) - [Reference](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc) - [Examples](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#pkg-examples) - [RealWorld example app](https://github.com/uptrace/go-treemux-realworld-example-app) ## Ecosystem - [Redis Mock](https://github.com/go-redis/redismock). - [Distributed Locks](https://github.com/bsm/redislock). - [Redis Cache](https://github.com/go-redis/cache). - [Rate limiting](https://github.com/go-redis/redis_rate). ## Features - Redis 3 commands except QUIT, MONITOR, and SYNC. - Automatic connection pooling with [circuit breaker](https://en.wikipedia.org/wiki/Circuit_breaker_design_pattern) support. - [Pub/Sub](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#PubSub). - [Transactions](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#example-Client-TxPipeline). - [Pipeline](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#example-Client-Pipeline) and [TxPipeline](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#example-Client-TxPipeline). - [Scripting](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#Script). - [Timeouts](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#Options). - [Redis Sentinel](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#NewFailoverClient). - [Redis Cluster](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#NewClusterClient). - [Cluster of Redis Servers](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#example-NewClusterClient--ManualSetup) without using cluster mode and Redis Sentinel. - [Ring](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#NewRing). - [Instrumentation](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#ex-package--Instrumentation). ## Installation go-redis supports 2 last Go versions and requires a Go version with [modules](https://github.com/golang/go/wiki/Modules) support. So make sure to initialize a Go module: ```shell go mod init github.com/my/repo ``` And then install go-redis/v8 (note _v8_ in the import; omitting it is a popular mistake): ```shell go get github.com/go-redis/redis/v8 ``` ## Quickstart ```go 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: ```go // 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 definded 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 - [Fast and flexible HTTP router](https://github.com/vmihailenco/treemux) - [Golang PostgreSQL ORM](https://github.com/go-pg/pg) - [Golang msgpack](https://github.com/vmihailenco/msgpack) - [Golang message task queue](https://github.com/vmihailenco/taskq)