/
redis.go
64 lines (51 loc) · 1.1 KB
/
redis.go
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package ratelimit
import (
"context"
"time"
"github.com/gomodule/redigo/redis"
)
type redisPool struct {
pool *redis.Pool
}
type redisConnection struct {
redis.Conn
}
func (s *redisPool) Connect() Connection {
return &redisConnection{s.pool.Get()}
}
func (c *redisConnection) Incr(key string) (int, error) {
const secondsToExpire = 60
cnt, err := redis.Int(c.Do("INCR", key))
if err != nil {
return -1, err
}
_, err = c.Do("EXPIRE", key, secondsToExpire)
if err != nil {
return -1, err
}
return cnt, nil
}
func GetRedisPool(address string) ConnectionPool {
var (
pooledConnections = 10
dialTimeout = 1 * time.Second
idleTimeout = 4 * time.Minute
readTimeout = 1 * time.Second
writeTimeout = 1 * time.Second
)
pool := &redis.Pool{
MaxIdle: pooledConnections,
IdleTimeout: idleTimeout,
DialContext: func(ctx context.Context) (redis.Conn, error) {
return redis.DialContext(
ctx,
"tcp",
address,
redis.DialConnectTimeout(dialTimeout),
redis.DialReadTimeout(readTimeout),
redis.DialWriteTimeout(writeTimeout),
)
},
}
return &redisPool{pool}
}