induzo/gostorage

package redis

import (
    "fmt"
    "log"

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

// Exists return true if key is present
func Exists(rp *redis.Pool, key string) (bool, error) {
    red := rp.Get()

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

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

    return exists, nil
}