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package storage
import "github.com/go-redis/redis/v7"
var _ CHR = &Redis{}
// Redis storage engine
type Redis redis.Client
// Create an entry in redis
func (r *Redis) Create(key, value string, checkcollision bool) error {
if !r.Healthy() {
return Unhealthy
}
if checkcollision {
col, err := r.Exists(key).Result()
if err != nil {
return Unhealthy
}
if col > 0 {
return Collision
}
}
_, err := r.Set(key, value, 0).Result()
return err
}
func (r *Redis) Read(key string) (string, error) {
if !r.Healthy() {
return "", Unhealthy
}
res, err := r.Get(key).Result()
if err == redis.Nil {
return res, NotFound
}
return res, err
}
// Healthy determines whether redis is responding to pings
func (r *Redis) Healthy() bool {
_, err := r.Ping().Result()
if err != nil {
return false
}
return true
}
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