mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2024-08-21 20:18:42 +02:00
147 lines
5.4 KiB
Markdown
147 lines
5.4 KiB
Markdown
|
# 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#Multi).
|
||
|
- [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/redis-lock).
|
||
|
|
||
|
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()
|
||
|
```
|
||
|
|
||
|
## Benchmark
|
||
|
|
||
|
go-redis vs redigo:
|
||
|
|
||
|
```
|
||
|
BenchmarkSetGoRedis10Conns64Bytes-4 200000 7621 ns/op 210 B/op 6 allocs/op
|
||
|
BenchmarkSetGoRedis100Conns64Bytes-4 200000 7554 ns/op 210 B/op 6 allocs/op
|
||
|
BenchmarkSetGoRedis10Conns1KB-4 200000 7697 ns/op 210 B/op 6 allocs/op
|
||
|
BenchmarkSetGoRedis100Conns1KB-4 200000 7688 ns/op 210 B/op 6 allocs/op
|
||
|
BenchmarkSetGoRedis10Conns10KB-4 200000 9214 ns/op 210 B/op 6 allocs/op
|
||
|
BenchmarkSetGoRedis100Conns10KB-4 200000 9181 ns/op 210 B/op 6 allocs/op
|
||
|
BenchmarkSetGoRedis10Conns1MB-4 2000 583242 ns/op 2337 B/op 6 allocs/op
|
||
|
BenchmarkSetGoRedis100Conns1MB-4 2000 583089 ns/op 2338 B/op 6 allocs/op
|
||
|
BenchmarkSetRedigo10Conns64Bytes-4 200000 7576 ns/op 208 B/op 7 allocs/op
|
||
|
BenchmarkSetRedigo100Conns64Bytes-4 200000 7782 ns/op 208 B/op 7 allocs/op
|
||
|
BenchmarkSetRedigo10Conns1KB-4 200000 7958 ns/op 208 B/op 7 allocs/op
|
||
|
BenchmarkSetRedigo100Conns1KB-4 200000 7725 ns/op 208 B/op 7 allocs/op
|
||
|
BenchmarkSetRedigo10Conns10KB-4 100000 18442 ns/op 208 B/op 7 allocs/op
|
||
|
BenchmarkSetRedigo100Conns10KB-4 100000 18818 ns/op 208 B/op 7 allocs/op
|
||
|
BenchmarkSetRedigo10Conns1MB-4 2000 668829 ns/op 226 B/op 7 allocs/op
|
||
|
BenchmarkSetRedigo100Conns1MB-4 2000 679542 ns/op 226 B/op 7 allocs/op
|
||
|
```
|
||
|
|
||
|
Redis Cluster:
|
||
|
|
||
|
```
|
||
|
BenchmarkRedisPing-4 200000 6983 ns/op 116 B/op 4 allocs/op
|
||
|
BenchmarkRedisClusterPing-4 100000 11535 ns/op 117 B/op 4 allocs/op
|
||
|
```
|
||
|
|
||
|
## 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/go-msgqueue/msgqueue)
|