1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
# Redis client for Golang
[](https://travis-ci.org/go-redis/redis)
[](https://godoc.org/github.com/go-redis/redis)
[](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
go-redis requires a Go version with [Modules](https://github.com/golang/go/wiki/Modules) support and uses import versioning. So please make sure to initialize a Go module before installing go-redis:
``` shell
go mod init github.com/my/repo
go get github.com/go-redis/redis/v7
```
Import:
``` go
import "github.com/go-redis/redis/v7"
```
## 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() {
client := redis.NewClient(&redis.Options{
Addr: "localhost:6379",
Password: "", // no password set
DB: 0, // use default DB
})
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{
Keys: []string{"zset1", "zset2"},
Weights: []int64{2, 3}
}).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").Result()
```
## 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)
|
