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|
package valkeycache
import (
"context"
"fmt"
"time"
"github.com/go-gorm/caches/v4"
valkey "github.com/redis/go-redis/v9"
)
func New(rdb *valkey.Client) *Cache {
return &Cache{rdb: rdb}
}
type Cache struct {
rdb *valkey.Client
}
func (c *Cache) Get(ctx context.Context, key string, q *caches.Query[any]) (*caches.Query[any], error) {
res, err := c.rdb.Get(ctx, key).Result()
if err == valkey.Nil {
return nil, nil
}
if err != nil {
return nil, err
}
if err := q.Unmarshal([]byte(res)); err != nil {
return nil, err
}
return q, nil
}
func (c *Cache) Store(ctx context.Context, key string, val *caches.Query[any]) error {
res, err := val.Marshal()
if err != nil {
return err
}
c.rdb.Set(ctx, key, res, 300*time.Second) // Set proper cache time
return nil
}
func (c *Cache) Invalidate(ctx context.Context) error {
var (
cursor uint64
keys []string
)
for {
var (
k []string
err error
)
k, cursor, err = c.rdb.Scan(ctx, cursor, fmt.Sprintf("%s*", caches.IdentifierPrefix), 0).Result()
if err != nil {
return err
}
keys = append(keys, k...)
if cursor == 0 {
break
}
}
if len(keys) > 0 {
if _, err := c.rdb.Del(ctx, keys...).Result(); err != nil {
return err
}
}
return nil
}
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