# Redis client for Golang [![Build Status](https://travis-ci.org/go-redis/redis.png?branch=master)](https://travis-ci.org/go-redis/redis) [![GoDoc](https://godoc.org/github.com/go-redis/redis?status.svg)](https://godoc.org/github.com/go-redis/redis) [![Airbrake](https://img.shields.io/badge/kudos-airbrake.io-orange.svg)](https://airbrake.io) Supports: - Redis 3 commands except QUIT, MONITOR, SLOWLOG and SYNC. - Automatic connection pooling with [circuit breaker](https://en.wikipedia.org/wiki/Circuit_breaker_design_pattern) support. - [Pub/Sub](https://godoc.org/github.com/go-redis/redis#PubSub). - [Transactions](https://godoc.org/github.com/go-redis/redis#example-Client-TxPipeline). - [Pipeline](https://godoc.org/github.com/go-redis/redis#example-Client-Pipeline) and [TxPipeline](https://godoc.org/github.com/go-redis/redis#example-Client-TxPipeline). - [Scripting](https://godoc.org/github.com/go-redis/redis#Script). - [Timeouts](https://godoc.org/github.com/go-redis/redis#Options). - [Redis Sentinel](https://godoc.org/github.com/go-redis/redis#NewFailoverClient). - [Redis Cluster](https://godoc.org/github.com/go-redis/redis#NewClusterClient). - [Cluster of Redis Servers](https://godoc.org/github.com/go-redis/redis#example-NewClusterClient--ManualSetup) without using cluster mode and Redis Sentinel. - [Ring](https://godoc.org/github.com/go-redis/redis#NewRing). - [Instrumentation](https://godoc.org/github.com/go-redis/redis#ex-package--Instrumentation). - [Cache friendly](https://github.com/go-redis/cache). - [Rate limiting](https://github.com/go-redis/redis_rate). - [Distributed Locks](https://github.com/bsm/redislock). API docs: https://godoc.org/github.com/go-redis/redis. Examples: https://godoc.org/github.com/go-redis/redis#pkg-examples. ## Installation Install: ```shell go get -u github.com/go-redis/redis ``` Import: ```go import "github.com/go-redis/redis" ``` ## Quickstart ```go func ExampleNewClient() { client := redis.NewClient(&redis.Options{ Addr: "localhost:6379", Password: "", // no password set DB: 0, // use default DB }) pong, err := client.Ping().Result() fmt.Println(pong, err) // Output: PONG <nil> } func ExampleClient() { 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 } ``` ## Howto Please go through [examples](https://godoc.org/github.com/go-redis/redis#pkg-examples) to get an idea how to use this package. ## Look and feel Some corner cases: ```go // SET key value EX 10 NX set, err := client.SetNX("key", "value", 10*time.Second).Result() // SORT list LIMIT 0 2 ASC vals, err := client.Sort("list", redis.Sort{Offset: 0, Count: 2, Order: "ASC"}).Result() // ZRANGEBYSCORE zset -inf +inf WITHSCORES LIMIT 0 2 vals, err := client.ZRangeByScoreWithScores("zset", redis.ZRangeBy{ Min: "-inf", Max: "+inf", Offset: 0, Count: 2, }).Result() // ZINTERSTORE out 2 zset1 zset2 WEIGHTS 2 3 AGGREGATE SUM vals, err := client.ZInterStore("out", redis.ZStore{Weights: []int64{2, 3}}, "zset1", "zset2").Result() // EVAL "return {KEYS[1],ARGV[1]}" 1 "key" "hello" vals, err := client.Eval("return {KEYS[1],ARGV[1]}", []string{"key"}, "hello").Result() // custom command res, err := client.Do("set", "key", "value") ``` ## See also - [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)