forked from mirror/redis
136 lines
4.5 KiB
Markdown
136 lines
4.5 KiB
Markdown
# Redis client for Golang [](https://travis-ci.org/go-redis/redis)
|
|
|
|
Supports:
|
|
|
|
- Redis 3 commands except QUIT, MONITOR, SLOWLOG and SYNC.
|
|
- [Pub/Sub](http://godoc.org/gopkg.in/redis.v5#PubSub).
|
|
- [Transactions](http://godoc.org/gopkg.in/redis.v5#Multi).
|
|
- [Pipelining](http://godoc.org/gopkg.in/redis.v5#Client.Pipeline).
|
|
- [Scripting](http://godoc.org/gopkg.in/redis.v5#Script).
|
|
- [Timeouts](http://godoc.org/gopkg.in/redis.v5#Options).
|
|
- [Redis Sentinel](http://godoc.org/gopkg.in/redis.v5#NewFailoverClient).
|
|
- [Redis Cluster](http://godoc.org/gopkg.in/redis.v5#NewClusterClient).
|
|
- [Ring](http://godoc.org/gopkg.in/redis.v5#NewRing).
|
|
- [Cache friendly](https://github.com/go-redis/cache).
|
|
- [Rate limiting](https://github.com/go-redis/rate).
|
|
- [Distributed Locks](https://github.com/bsm/redis-lock).
|
|
|
|
API docs: http://godoc.org/gopkg.in/redis.v5.
|
|
Examples: http://godoc.org/gopkg.in/redis.v5#pkg-examples.
|
|
|
|
## Installation
|
|
|
|
Install:
|
|
|
|
```shell
|
|
go get gopkg.in/redis.v5
|
|
```
|
|
|
|
Import:
|
|
|
|
```go
|
|
import "gopkg.in/redis.v5"
|
|
```
|
|
|
|
## 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 exists")
|
|
} else if err != nil {
|
|
panic(err)
|
|
} else {
|
|
fmt.Println("key2", val2)
|
|
}
|
|
// Output: key value
|
|
// key2 does not exists
|
|
}
|
|
```
|
|
|
|
## Howto
|
|
|
|
Please go through [examples](http://godoc.org/gopkg.in/redis.v5#pkg-examples) to get an idea how to use this package.
|
|
|
|
## Look and feel
|
|
|
|
Some corner cases:
|
|
|
|
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.ZRangeByScore{
|
|
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"}, []string{"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
|
|
```
|
|
|
|
## Shameless plug
|
|
|
|
Check my [PostgreSQL client for Go](https://github.com/go-pg/pg).
|