54 lines
1.3 KiB
Go
54 lines
1.3 KiB
Go
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package redis
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import (
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"time"
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"github.com/go-redis/redis"
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)
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// Client defines the interface for communicating with a Storj redis instance
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type Client interface {
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Get(key string) ([]byte, error)
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Set(key string, value []byte, ttl time.Duration) error
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Ping() error
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}
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// Client is the entrypoint into Redis
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type redisClient struct {
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DB *redis.Client
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}
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// NewRedisClient returns a configured Client instance, verifying a sucessful connection to redis
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func NewRedisClient(address, password string, db int) (Client, error) {
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c := &redisClient{
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DB: redis.NewClient(&redis.Options{
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Addr: address,
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Password: password,
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DB: db,
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}),
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}
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// ping here to verify we are able to connect to the redis instacne with the initialized client.
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if err := c.DB.Ping().Err(); err != nil {
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return nil, err
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}
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return c, nil
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}
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// Get looks up the provided key from the redis cache returning either an error or the result.
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func (c *redisClient) Get(key string) ([]byte, error) {
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return c.DB.Get(key).Bytes()
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}
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// Set adds a value to the provided key in the Redis cache, returning an error on failure.
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func (c *redisClient) Set(key string, value []byte, ttl time.Duration) error {
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return c.DB.Set(key, value, ttl).Err()
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}
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// Ping returns an error if pinging the underlying redis server failed
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func (c *redisClient) Ping() error {
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return c.DB.Ping().Err()
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}
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