store

package

v0.0.0-...-cc299b8 Latest Latest Go to latest Published: Apr 10, 2021 License: MIT Imports: 3 Imported by: 0

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type Storage struct {
	Pool      *redis.Pool
	IDChannel chan int
	LastID    int
}

Storage keeps pool of connections for redis, number of saved URLs and channel required for generation of short aliases for new incoming URLs.

func New(redisURL string, db int) (*Storage, error)

New returns an instance of Storage.

func (s *Storage) Close()

Close closes all connections to Redis, releasing all resources.

func (s *Storage) Longer(short []byte) ([]byte, error)

Longer searches the original URL in Redis by given short alias.

func (s *Storage) SaveFull(longURL []byte) ([]byte, error)

SaveFull generates a unique short alias for the given URL, saves the match between this alias and the given URL into Redis and returns alias.

func (s *Storage) Shorter(longURL []byte) ([]byte, error)

Shorter checks if the given URL has a short version saved earlier. If not, it saves it into Redis and returns a short alias for the given URL.