message-pusher/common/redis.go

package common

import (
	"context"
	"github.com/go-redis/redis/v8"
	"os"
	"time"
)

var RDB *redis.Client
var RedisEnabled = true

// InitRedisClient This function is called after init()
func InitRedisClient() (err error) {
	if os.Getenv("REDIS_CONN_STRING") == "" {
		RedisEnabled = false
		SysLog("REDIS_CONN_STRING not set, Redis is not enabled")
		return nil
	}
	opt, err := redis.ParseURL(os.Getenv("REDIS_CONN_STRING"))
	if err != nil {
		panic(err)
	}
	RDB = redis.NewClient(opt)

	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
	defer cancel()

	_, err = RDB.Ping(ctx).Result()
	return err
}

func ParseRedisOption() *redis.Options {
	opt, err := redis.ParseURL(os.Getenv("REDIS_CONN_STRING"))
	if err != nil {
		panic(err)
	}
	return opt
}