2022-02-20 08:36:00 +03:00
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# Redis client for Go
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2017-06-17 13:01:40 +03:00
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2023-01-23 09:48:54 +03:00
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[![build workflow](https://github.com/redis/go-redis/actions/workflows/build.yml/badge.svg)](https://github.com/redis/go-redis/actions)
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[![PkgGoDev](https://pkg.go.dev/badge/github.com/redis/go-redis/v9)](https://pkg.go.dev/github.com/redis/go-redis/v9?tab=doc)
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2020-09-18 09:24:22 +03:00
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[![Documentation](https://img.shields.io/badge/redis-documentation-informational)](https://redis.uptrace.dev/)
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2022-03-18 15:00:38 +03:00
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[![Chat](https://discordapp.com/api/guilds/752070105847955518/widget.png)](https://discord.gg/rWtp5Aj)
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2020-09-02 09:41:39 +03:00
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2022-04-03 09:27:24 +03:00
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> go-redis is brought to you by :star: [**uptrace/uptrace**](https://github.com/uptrace/uptrace).
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2022-09-15 12:01:14 +03:00
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> Uptrace is an open-source APM tool that supports distributed tracing, metrics, and logs. You can
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> use it to monitor applications and set up automatic alerts to receive notifications via email,
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2022-11-09 16:18:55 +03:00
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> Slack, Telegram, and others.
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>
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2022-11-09 16:51:59 +03:00
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> See [OpenTelemetry](example/otel) example which demonstrates how you can use Uptrace to monitor
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> go-redis.
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2022-05-03 17:50:48 +03:00
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2022-02-22 16:18:47 +03:00
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## Resources
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2020-10-12 17:02:00 +03:00
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- [Documentation](https://redis.uptrace.dev)
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2023-01-23 09:48:54 +03:00
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- [Discussions](https://github.com/redis/go-redis/discussions)
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2022-03-19 15:32:12 +03:00
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- [Chat](https://discord.gg/rWtp5Aj)
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2023-01-23 09:48:54 +03:00
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- [Reference](https://pkg.go.dev/github.com/redis/go-redis/v9)
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- [Examples](https://pkg.go.dev/github.com/redis/go-redis/v9#pkg-examples)
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2020-06-10 15:04:12 +03:00
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2020-06-09 17:59:23 +03:00
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## Ecosystem
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2023-01-24 15:19:26 +03:00
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- [Redis Mock](https://github.com/go-redis/redismock)
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2022-02-22 16:18:47 +03:00
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- [Distributed Locks](https://github.com/bsm/redislock)
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- [Redis Cache](https://github.com/go-redis/cache)
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2023-01-23 09:48:54 +03:00
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- [Rate limiting](https://github.com/redis/go-redis_rate)
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2020-06-09 17:59:23 +03:00
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2022-09-15 12:01:14 +03:00
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This client also works with [Kvrocks](https://github.com/apache/incubator-kvrocks), a distributed
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key value NoSQL database that uses RocksDB as storage engine and is compatible with Redis protocol.
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2022-04-14 17:55:34 +03:00
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2020-06-09 17:59:23 +03:00
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## Features
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2014-05-11 11:42:40 +04:00
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2020-09-09 14:46:01 +03:00
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- Redis 3 commands except QUIT, MONITOR, and SYNC.
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- Automatic connection pooling with
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2022-04-13 16:01:35 +03:00
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- [Pub/Sub](https://redis.uptrace.dev/guide/go-redis-pubsub.html).
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- [Pipelines and transactions](https://redis.uptrace.dev/guide/go-redis-pipelines.html).
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- [Scripting](https://redis.uptrace.dev/guide/lua-scripting.html).
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- [Redis Sentinel](https://redis.uptrace.dev/guide/go-redis-sentinel.html).
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- [Redis Cluster](https://redis.uptrace.dev/guide/go-redis-cluster.html).
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- [Redis Ring](https://redis.uptrace.dev/guide/ring.html).
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- [Redis Performance Monitoring](https://redis.uptrace.dev/guide/redis-performance-monitoring.html).
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2014-05-11 11:42:40 +04:00
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2015-10-25 14:30:26 +03:00
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## Installation
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2014-05-11 11:42:40 +04:00
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2020-10-12 17:02:00 +03:00
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go-redis supports 2 last Go versions and requires a Go version with
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[modules](https://github.com/golang/go/wiki/Modules) support. So make sure to initialize a Go
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module:
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2020-05-09 17:38:45 +03:00
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```shell
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go mod init github.com/my/repo
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```
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2023-01-23 09:48:54 +03:00
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Then install go-redis/**v9**:
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2020-10-12 17:02:00 +03:00
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```shell
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go get github.com/redis/go-redis/v9
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```
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2015-10-25 14:30:26 +03:00
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## Quickstart
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2020-05-09 17:38:45 +03:00
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```go
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import (
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"context"
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"github.com/redis/go-redis/v9"
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"fmt"
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2020-06-14 13:45:37 +03:00
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)
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var ctx = context.Background()
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2015-05-23 14:33:33 +03:00
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func ExampleClient() {
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rdb := redis.NewClient(&redis.Options{
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Addr: "localhost:6379",
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Password: "", // no password set
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DB: 0, // use default DB
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})
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2020-06-10 15:04:12 +03:00
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err := rdb.Set(ctx, "key", "value", 0).Err()
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if err != nil {
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panic(err)
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}
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val, err := rdb.Get(ctx, "key").Result()
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if err != nil {
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panic(err)
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}
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fmt.Println("key", val)
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2020-06-10 15:04:12 +03:00
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val2, err := rdb.Get(ctx, "key2").Result()
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if err == redis.Nil {
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fmt.Println("key2 does not exist")
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} else if err != nil {
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panic(err)
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} else {
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fmt.Println("key2", val2)
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}
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// Output: key value
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// key2 does not exist
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}
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```
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2015-10-25 14:30:26 +03:00
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## Look and feel
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2014-05-11 11:42:40 +04:00
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Some corner cases:
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2020-05-09 17:38:45 +03:00
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```go
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// SET key value EX 10 NX
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set, err := rdb.SetNX(ctx, "key", "value", 10*time.Second).Result()
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2020-09-18 14:49:12 +03:00
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// SET key value keepttl NX
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set, err := rdb.SetNX(ctx, "key", "value", redis.KeepTTL).Result()
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2018-07-20 11:47:53 +03:00
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// SORT list LIMIT 0 2 ASC
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vals, err := rdb.Sort(ctx, "list", &redis.Sort{Offset: 0, Count: 2, Order: "ASC"}).Result()
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2014-05-11 11:42:40 +04:00
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2018-07-20 11:47:53 +03:00
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// ZRANGEBYSCORE zset -inf +inf WITHSCORES LIMIT 0 2
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vals, err := rdb.ZRangeByScoreWithScores(ctx, "zset", &redis.ZRangeBy{
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Min: "-inf",
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Max: "+inf",
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Offset: 0,
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Count: 2,
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}).Result()
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2018-07-20 11:47:53 +03:00
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// ZINTERSTORE out 2 zset1 zset2 WEIGHTS 2 3 AGGREGATE SUM
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vals, err := rdb.ZInterStore(ctx, "out", &redis.ZStore{
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Keys: []string{"zset1", "zset2"},
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Weights: []int64{2, 3}
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}).Result()
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2014-05-11 11:42:40 +04:00
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2018-07-20 11:47:53 +03:00
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// EVAL "return {KEYS[1],ARGV[1]}" 1 "key" "hello"
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vals, err := rdb.Eval(ctx, "return {KEYS[1],ARGV[1]}", []string{"key"}, "hello").Result()
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2016-03-19 17:55:22 +03:00
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2019-06-04 13:32:54 +03:00
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// custom command
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2020-06-10 15:04:12 +03:00
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res, err := rdb.Do(ctx, "set", "key", "value").Result()
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2016-03-10 12:10:47 +03:00
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```
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2021-02-25 18:58:15 +03:00
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2020-12-21 09:55:13 +03:00
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## Run the test
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go-redis will start a redis-server and run the test cases.
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2020-12-21 09:55:13 +03:00
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2021-04-29 08:45:13 +03:00
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The paths of redis-server bin file and redis config file are defined in `main_test.go`:
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2022-04-13 16:01:35 +03:00
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```go
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var (
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redisServerBin, _ = filepath.Abs(filepath.Join("testdata", "redis", "src", "redis-server"))
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redisServerConf, _ = filepath.Abs(filepath.Join("testdata", "redis", "redis.conf"))
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)
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```
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2021-02-25 18:58:15 +03:00
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For local testing, you can change the variables to refer to your local files, or create a soft link
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to the corresponding folder for redis-server and copy the config file to `testdata/redis/`:
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2022-04-13 16:01:35 +03:00
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```shell
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ln -s /usr/bin/redis-server ./go-redis/testdata/redis/src
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cp ./go-redis/testdata/redis.conf ./go-redis/testdata/redis/
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```
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Lastly, run:
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2022-04-13 16:01:35 +03:00
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```shell
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go test
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```
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2021-07-14 14:40:25 +03:00
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2022-04-05 10:06:50 +03:00
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## See also
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- [Golang ORM](https://bun.uptrace.dev) for PostgreSQL, MySQL, MSSQL, and SQLite
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- [Golang PostgreSQL](https://bun.uptrace.dev/postgres/)
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- [Golang HTTP router](https://bunrouter.uptrace.dev/)
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- [Golang ClickHouse ORM](https://github.com/uptrace/go-clickhouse)
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2021-07-14 14:40:25 +03:00
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## Contributors
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Thanks to all the people who already contributed!
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2023-01-23 09:48:54 +03:00
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<a href="https://github.com/redis/go-redis/graphs/contributors">
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<img src="https://contributors-img.web.app/image?repo=redis/go-redis" />
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2021-07-14 14:40:25 +03:00
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</a>
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