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package kv
// Item represents general storage item
import (
"context"
)
type Item struct {
// Key of item
Key string
// Value of item
Value string
// live until time provided by TTL in RFC 3339 format
TTL string
}
// Storage represents single abstract storage.
type Storage interface {
// Has checks if value exists.
Has(ctx context.Context, keys ...string) (map[string]bool, error)
// Get loads value content into a byte slice.
Get(ctx context.Context, key string) ([]byte, error)
// MGet loads content of multiple values
// If there are no values for keys, key will no be in the map
MGet(ctx context.Context, keys ...string) (map[string]interface{}, error)
// Set used to upload item to KV with TTL
// 0 value in TTL means no TTL
Set(ctx context.Context, items ...Item) error
// MExpire sets the TTL for multiply keys
MExpire(ctx context.Context, items ...Item) error
// TTL return the rest time to live for provided keys
// Not supported for the memcached and boltdb
TTL(ctx context.Context, keys ...string) (map[string]interface{}, error)
// Delete one or multiple keys.
Delete(ctx context.Context, keys ...string) error
// Close closes the storage and underlying resources.
Close() error
}
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