cache

type FrontEnd struct {
	// GetCounter retrieves a new update counter for a resource
	GetCounter func(Key) (uint64, error)

	// GetFresh retrieves new post data from the database
	GetFresh func(Key) (interface{}, error)

	// Encode data into JSON. If null, default encoder is used.
	EncodeJSON func(data interface{}) ([]byte, error)

	// RenderHTML produces HTML from the passed in data and JSON
	RenderHTML func(interface{}, []byte) []byte

	// Calculates the size taken by the store.
	// If nil, the default function is used.
	Size func(data interface{}, json, html []byte) int
}

type Key struct {
	LastN uint8
	Board string
	ID    uint64
	Page  int64
}