ProductPromotion
Logo

Go.Lang

made by https://0x3d.site

GitHub - redis/go-redis: Redis Go client
Redis Go client. Contribute to redis/go-redis development by creating an account on GitHub.
Visit Site

GitHub - redis/go-redis: Redis Go client

GitHub - redis/go-redis: Redis Go client

Redis client for Go

build workflow PkgGoDev Documentation codecov Chat

go-redis is brought to you by :star: uptrace/uptrace. Uptrace is an open-source APM tool that supports distributed tracing, metrics, and logs. You can use it to monitor applications and set up automatic alerts to receive notifications via email, Slack, Telegram, and others.

See OpenTelemetry example which demonstrates how you can use Uptrace to monitor go-redis.

How do I Redis?

Learn for free at Redis University

Build faster with the Redis Launchpad

Try the Redis Cloud

Dive in developer tutorials

Join the Redis community

Work at Redis

Documentation

Resources

Ecosystem

This client also works with Kvrocks, a distributed key value NoSQL database that uses RocksDB as storage engine and is compatible with Redis protocol.

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

Then install go-redis/v9:

go get github.com/redis/go-redis/v9

Quickstart

import (
    "context"
    "fmt"

    "github.com/redis/go-redis/v9"
)

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
}

The above can be modified to specify the version of the RESP protocol by adding the protocol option to the Options struct:

    rdb := redis.NewClient(&redis.Options{
        Addr:     "localhost:6379",
        Password: "", // no password set
        DB:       0,  // use default DB
        Protocol: 3, // specify 2 for RESP 2 or 3 for RESP 3
    })

Connecting via a redis url

go-redis also supports connecting via the redis uri specification. The example below demonstrates how the connection can easily be configured using a string, adhering to this specification.

import (
    "github.com/redis/go-redis/v9"
)

func ExampleClient() *redis.Client {
    url := "redis://user:password@localhost:6379/0?protocol=3"
    opts, err := redis.ParseURL(url)
    if err != nil {
        panic(err)
    }

    return redis.NewClient(opts)
}

Advanced Configuration

go-redis supports extending the client identification phase to allow projects to send their own custom client identification.

Default 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.

Disabling Identity Verification

When connection identity verification is not required or needs to be explicitly disabled, a DisableIndentity configuration option exists. In V10 of this library, DisableIndentity will become DisableIdentity in order to fix the associated typo.

To disable verification, set the DisableIndentity option to true in the Redis client options:

rdb := redis.NewClient(&redis.Options{
    Addr:            "localhost:6379",
    Password:        "",
    DB:              0,
    DisableIndentity: true, // Disable set-info on connect
})

Unstable RESP3 Structures for RediSearch Commands

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.

Contributing

Please see out contributing guidelines to help us improve this library!

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

Another option is to run your specific tests with an already running redis. The example below, tests against a redis running on port 9999.:

REDIS_PORT=9999 go test <your options>

See also

Contributors

Thanks to all the people who already contributed!

Articles
to learn more about the golang concepts.

Resources
which are currently available to browse on.

mail [email protected] to add your project or resources here 🔥.

FAQ's
to know more about the topic.

mail [email protected] to add your project or resources here 🔥.

Queries
or most google FAQ's about GoLang.

mail [email protected] to add more queries here 🔍.

More Sites
to check out once you're finished browsing here.

0x3d
https://www.0x3d.site/
0x3d is designed for aggregating information.
NodeJS
https://nodejs.0x3d.site/
NodeJS Online Directory
Cross Platform
https://cross-platform.0x3d.site/
Cross Platform Online Directory
Open Source
https://open-source.0x3d.site/
Open Source Online Directory
Analytics
https://analytics.0x3d.site/
Analytics Online Directory
JavaScript
https://javascript.0x3d.site/
JavaScript Online Directory
GoLang
https://golang.0x3d.site/
GoLang Online Directory
Python
https://python.0x3d.site/
Python Online Directory
Swift
https://swift.0x3d.site/
Swift Online Directory
Rust
https://rust.0x3d.site/
Rust Online Directory
Scala
https://scala.0x3d.site/
Scala Online Directory
Ruby
https://ruby.0x3d.site/
Ruby Online Directory
Clojure
https://clojure.0x3d.site/
Clojure Online Directory
Elixir
https://elixir.0x3d.site/
Elixir Online Directory
Elm
https://elm.0x3d.site/
Elm Online Directory
Lua
https://lua.0x3d.site/
Lua Online Directory
C Programming
https://c-programming.0x3d.site/
C Programming Online Directory
C++ Programming
https://cpp-programming.0x3d.site/
C++ Programming Online Directory
R Programming
https://r-programming.0x3d.site/
R Programming Online Directory
Perl
https://perl.0x3d.site/
Perl Online Directory
Java
https://java.0x3d.site/
Java Online Directory
Kotlin
https://kotlin.0x3d.site/
Kotlin Online Directory
PHP
https://php.0x3d.site/
PHP Online Directory
React JS
https://react.0x3d.site/
React JS Online Directory
Angular
https://angular.0x3d.site/
Angular JS Online Directory