74 lines
1.5 KiB
Go
74 lines
1.5 KiB
Go
|
package core
|
||
|
|
|
||
|
|
import (
|
||
|
|
"context"
|
||
|
|
"fmt"
|
||
|
|
"os"
|
||
|
|
"strconv"
|
||
|
|
"time"
|
||
|
|
|
||
|
|
"github.com/redis/go-redis/v9"
|
||
|
|
)
|
||
|
|
|
||
|
|
var ctx context.Context
|
||
|
|
|
||
|
|
type Cache struct {
|
||
|
|
redis *redis.Client
|
||
|
|
}
|
||
|
|
|
||
|
|
func NewCache(cacheConfig CacheConfig) *Cache {
|
||
|
|
ctx = context.Background()
|
||
|
|
dbStr := os.Getenv("REDIS_DB")
|
||
|
|
db64, err := strconv.ParseInt(dbStr, 10, 64)
|
||
|
|
if err != nil {
|
||
|
|
panic(fmt.Sprintf("error parsing redis db env var: %v", err))
|
||
|
|
}
|
||
|
|
db := int(db64)
|
||
|
|
rdb := redis.NewClient(&redis.Options{
|
||
|
|
Addr: fmt.Sprintf("%v:%v", os.Getenv("REDIS_HOST"), os.Getenv("REDIS_PORT")),
|
||
|
|
Password: os.Getenv("REDIS_PASSWORD"), // no password set
|
||
|
|
DB: db, // use default DB
|
||
|
|
})
|
||
|
|
|
||
|
|
_, err = rdb.Ping(ctx).Result()
|
||
|
|
if cacheConfig.EnableCache && err != nil {
|
||
|
|
panic(fmt.Sprintf("problem connecting to redis cache, (if it's not needed you can disable it in config/cache.go): %v", err))
|
||
|
|
}
|
||
|
|
|
||
|
|
return &Cache{
|
||
|
|
redis: rdb,
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func (c *Cache) Set(key string, value string) error {
|
||
|
|
err := c.redis.Set(ctx, key, value, 0).Err()
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (c *Cache) SetWithExpiration(key string, value string, expiration time.Duration) error {
|
||
|
|
err := c.redis.Set(ctx, key, value, expiration).Err()
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (c *Cache) Get(key string) (string, error) {
|
||
|
|
result, err := c.redis.Get(ctx, key).Result()
|
||
|
|
if err != nil {
|
||
|
|
return "", err
|
||
|
|
}
|
||
|
|
return result, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (c *Cache) Delete(key string) error {
|
||
|
|
err := c.redis.Del(ctx, key).Err()
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|