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go-redis is the official Redis client library for the Go programming language. It offers a straightforward interface for interacting with Redis servers.
Ingo-redis
we are aiming to support the last three releases of Redis. Currently, this means we do support:
- Redis 7.2 - using Redis Stack 7.2 for modules support
- Redis 7.4 - using Redis Stack 7.4 for modules support
- Redis 8.0 - using Redis CE 8.0 where modules are included
Although thego.mod
states it requires at minimumgo 1.18
, our CI is configured to run the tests against all threeversions of Redis and latest two versions of Go (1.23,1.24). We observe that some modules related test may not pass withRedis Stack 7.2 and some commands are changed with Redis CE 8.0.Please do refer to the documentation and the tests if you experience any issues. We do plan to update the go versionin thego.mod
togo 1.24
in one of the next releases.
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This client also works withKvrocks, a distributedkey value NoSQL database that uses RocksDB as storage engine and is compatible with Redis protocol.
- Redis commands except QUIT and SYNC.
- Automatic connection pooling.
- Pub/Sub.
- Pipelines and transactions.
- Scripting.
- Redis Sentinel.
- Redis Cluster.
- Redis Ring.
- Redis Performance Monitoring.
- Redis Probabilistic [RedisStack]
go-redis supports 2 last Go versions and requires a Go version withmodules support. So make sure to initialize a Gomodule:
go mod init github.com/my/repo
Then install go-redis/v9:
go get github.com/redis/go-redis/v9
import ("context""fmt""github.com/redis/go-redis/v9")varctx=context.Background()funcExampleClient() {rdb:=redis.NewClient(&redis.Options{Addr:"localhost:6379",Password:"",// no password setDB:0,// use default DB })err:=rdb.Set(ctx,"key","value",0).Err()iferr!=nil {panic(err) }val,err:=rdb.Get(ctx,"key").Result()iferr!=nil {panic(err) }fmt.Println("key",val)val2,err:=rdb.Get(ctx,"key2").Result()iferr==redis.Nil {fmt.Println("key2 does not exist") }elseiferr!=nil {panic(err) }else {fmt.Println("key2",val2) }// Output: key value// key2 does not exist}
The above can be modified to specify the version of the RESP protocol by adding theprotocol
option to theOptions
struct:
rdb:=redis.NewClient(&redis.Options{Addr:"localhost:6379",Password:"",// no password setDB:0,// use default DBProtocol:3,// specify 2 for RESP 2 or 3 for RESP 3 })
go-redis also supports connecting via theredis uri specification.The example below demonstrates how the connection can easily be configured using a string, adheringto this specification.
import ("github.com/redis/go-redis/v9")funcExampleClient()*redis.Client {url:="redis://user:password@localhost:6379/0?protocol=3"opts,err:=redis.ParseURL(url)iferr!=nil {panic(err) }returnredis.NewClient(opts)}
go-redis supports extending the client identification phase to allow projects to send their own custom client identification.
By default, go-redis automatically sends the client library name and version during the connection process. This feature is available in redis-server as of version 7.2. As a result, the command is "fire and forget", meaning it should fail silently, in the case that the redis server does not support this feature.
When connection identity verification is not required or needs to be explicitly disabled, aDisableIndentity
configuration option exists. In V10 of this library,DisableIndentity
will becomeDisableIdentity
in order to fix the associated typo.
To disable verification, set theDisableIndentity
option totrue
in the Redis client options:
rdb:=redis.NewClient(&redis.Options{Addr:"localhost:6379",Password:"",DB:0,DisableIndentity:true,// Disable set-info on connect})
When integrating Redis with application functionalities using RESP3, it's important to note that some response structures aren't final yet. This is especially true for more complex structures like search and query results. We recommend using RESP2 when using the search and query capabilities, but we plan to stabilize the RESP3-based API-s in the coming versions. You can find more guidance in the upcoming release notes.
To enable unstable RESP3, set the option in your client configuration:
redis.NewClient(&redis.Options{UnstableResp3:true,})
Note: When UnstableResp3 mode is enabled, it's necessary to use RawResult() and RawVal() to retrieve a raw data.Since, raw response is the only option for unstable search commands Val() and Result() calls wouldn't have any affect on them:
res1,err:=client.FTSearchWithArgs(ctx,"txt","foo bar",&redis.FTSearchOptions{}).RawResult()val1:=client.FTSearchWithArgs(ctx,"txt","foo bar",&redis.FTSearchOptions{}).RawVal()
In the Redis-Search module,the default dialect is 2. If needed, you can explicitly specify a different dialect using the appropriate configuration in your queries.
Please seeout contributing guidelines to help us improve this library!
Some corner cases:
// SET key value EX 10 NXset,err:=rdb.SetNX(ctx,"key","value",10*time.Second).Result()// SET key value keepttl NXset,err:=rdb.SetNX(ctx,"key","value",redis.KeepTTL).Result()// SORT list LIMIT 0 2 ASCvals,err:=rdb.Sort(ctx,"list",&redis.Sort{Offset:0,Count:2,Order:"ASC"}).Result()// ZRANGEBYSCORE zset -inf +inf WITHSCORES LIMIT 0 2vals,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 SUMvals,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 commandres,err:=rdb.Do(ctx,"set","key","value").Result()
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 inmain_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 linkto the corresponding folder for redis-server and copy the config file totestdata/redis/
:
ln -s /usr/bin/redis-server ./go-redis/testdata/redis/srccp ./go-redis/testdata/redis.conf ./go-redis/testdata/redis/
Lastly, run:
gotest
Another option is to run your specific tests with an already running redis. The example below, testsagainst a redis running on port 9999.:
REDIS_PORT=9999 gotest<your options>
- Golang ORM for PostgreSQL, MySQL, MSSQL, and SQLite
- Golang PostgreSQL
- Golang HTTP router
- Golang ClickHouse ORM
The go-redis project was originally initiated by ⭐uptrace/uptrace.Uptrace is an open-source APM tool that supports distributed tracing, metrics, and logs. You canuse it to monitor applications and set up automatic alerts to receive notifications via email,Slack, Telegram, and others.
SeeOpenTelemetry example whichdemonstrates how you can use Uptrace to monitor go-redis.
Thanks to all the people who already contributed!