induzo/gostorage

package redis

import (
    "errors"
    "fmt"
    "log"

    "github.com/gomodule/redigo/redis"
)

var ErrNotFound = errors.New("key %s not found")

// Get return bytes if key is present
func Get(rp *redis.Pool, key string) (interface{}, error) {
    red := rp.Get()

    defer func() {
        if err := red.Close(); err != nil {
            log.Fatalf("Get(%v) Close: %v", key, err)
        }
    }()

    rawBytes, err := red.Do("GET", key)
    if err != nil {
        return nil, fmt.Errorf("Exists GET(%s): %v", key, err)
    }

    if rawBytes == nil {
        return nil, ErrNotFound
    }

    return rawBytes, nil
}