package main
import (
    "github.com/cheshir/ttlcache"
)
const (
    minute = 60 * time.Second
    hour = 60 * minute
)
func main() {
    // How often we need to stop the world and remove outdated records.
    resolution := minute
    cache := ttlcache.New(resolution)
    cache.Set(ttlcache.StringKey("some key"), "value", hour)
    value, ok := cache.Get(ttlcache.StringKey("some key"))
    if !ok {
        // there is no record with key "some key" in the cache. Probably it has been expired.
    }
    fmt.Println(value.(string)) // This is necessary type assertion, because returned value is of interface{} type.
}

BenchmarkCache_Set_100-16           8959221               125 ns/op
BenchmarkCache_Set_1000-16          9177854               123 ns/op
BenchmarkCache_Set_10000-16         9247304               131 ns/op
BenchmarkCache_Get_100-16           50562800              23.9 ns/op
BenchmarkCache_Get_1000-16          47270793              26.9 ns/op
BenchmarkCache_Get_10000-16         42578484              27.7 ns/op