/
redis.go
203 lines (172 loc) · 4.11 KB
/
redis.go
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package redis
import (
"fmt"
"github.com/caarlos0/env"
"github.com/fatih/color"
"github.com/gomodule/redigo/redis"
"github.com/seldinet/gamora/pkg/slack"
"os"
"os/signal"
"syscall"
"time"
)
// Configure config for redis
type Configure struct {
Mode string `env:"APP_MODE" envDefault:"debug"`
Host string `env:"REDIS_HOST" envDefault:"localhost"`
Port string `env:"REDIS_PORT" envDefault:"6379"`
Password string `env:"REDIS_PASSWORD" envDefault:"XNwsLoa..."`
Database int `env:"REDIS_DATABASE" envDefault:"1"`
MaxIdle int `env:"REDIS_MAX_IDLE" envDefault:"20"`
MaxActive int `env:"REDIS_MAX_ACTIVE" envDefault:"10"`
}
// Config global defined redis config
var Config Configure
var p *redis.Pool
// Setup init redis
func Setup() {
_ = env.Parse(&Config)
conTimeout := redis.DialConnectTimeout(240 * time.Second)
readTimeout := redis.DialReadTimeout(240 * time.Second)
writeTimeout := redis.DialWriteTimeout(240 * time.Second)
password := redis.DialPassword(Config.Password)
database := redis.DialDatabase(Config.Database)
p = &redis.Pool{
MaxIdle: Config.MaxIdle,
MaxActive: Config.MaxActive,
IdleTimeout: 240 * time.Second,
Wait: true,
Dial: func() (redis.Conn, error) {
c, err := redis.Dial("tcp", Config.Host+":"+Config.Port, password,
readTimeout, writeTimeout, conTimeout, database)
if err != nil {
return nil, err
}
return c, nil
},
TestOnBorrow: func(c redis.Conn, t time.Time) error {
_, err := c.Do("PING")
return err
},
}
if err := Ping(); err != nil {
slack.SendMessage(slack.Message{
Text: "Redis: " + err.Error(),
})
os.Exit(1)
}
cleanupHook()
_, _ = color.New(color.FgWhite).Println(time.Now().Format(time.RFC3339), "[info]", "[redis connected!]")
}
// Ping check ping
func Ping() error {
conn := p.Get()
defer conn.Close()
if _, err := conn.Do("PING"); err != nil {
return err
}
return nil
}
// cleanupHook check and clean
func cleanupHook() {
c := make(chan os.Signal, 1)
signal.Notify(c, os.Interrupt)
signal.Notify(c, syscall.SIGTERM)
signal.Notify(c, syscall.SIGKILL)
go func() {
<-c
p.Close()
os.Exit(0)
}()
}
// Get get key
func Get(key string) ([]byte, error) {
conn := p.Get()
defer conn.Close()
var data []byte
data, err := redis.Bytes(conn.Do("GET", key))
if err != nil {
return data, err
}
return data, err
}
// Set set key with expires
func Set(key string, value []byte, seconds int) error {
conn := p.Get()
defer conn.Close()
_, err := conn.Do("SET", key, value)
if err != nil {
v := string(value)
if len(v) > 15 {
v = v[0:12] + "..."
}
return err
}
if seconds != 0 {
_, _ = conn.Do("EXPIRE", key, seconds)
}
return err
}
// Exist check exist key
func Exist(key string) (bool, error) {
conn := p.Get()
defer conn.Close()
ok, err := redis.Bool(conn.Do("EXISTS", key))
if err != nil {
return ok, fmt.Errorf("error checking if key %s exists: %v", key, err)
}
return ok, err
}
// Delete delete key
func Delete(key string) error {
conn := p.Get()
defer conn.Close()
_, err := conn.Do("DEL", key)
return err
}
// Deletes delete keys
func Deletes(key string) error {
conn := p.Get()
defer conn.Close()
keys, err := redis.Strings(conn.Do("KEYS", "*"+key+"*"))
if err != nil {
return err
}
for _, key := range keys {
err = Delete(key)
if err != nil {
return err
}
}
return nil
}
// Incr incr by key
func Incr(key string) (int, error) {
conn := p.Get()
defer conn.Close()
return redis.Int(conn.Do("INCR", key))
}
// IncrBy incr by key set special value
func IncrBy(key string, value int) (int, error) {
conn := p.Get()
defer conn.Close()
return redis.Int(conn.Do("INCRBY", key, value))
}
// SetExpires set key expires
func SetExpires(key string, seconds int) {
conn := p.Get()
defer conn.Close()
if seconds != 0 {
_, _ = conn.Do("EXPIRE", key, seconds)
}
}
// GetKeyWithPrefix return key with prefix
func GetKeyWithPrefix(prefix string, key string) string {
if prefix == "" {
prefix = "api"
}
if Config.Mode == "release" {
return fmt.Sprintf("production_%s_cache:%s", prefix, key)
}
return fmt.Sprintf("dev_%s_cache:%s", prefix, key)
}