gocache

🦜 Gocache

gocache is a distributed caching library, adapted from groupcache, intended as a replacement for memcached in many cases.

Installation

Install and update this package with go get -u github.com/sinomoe/gocache.

Usage

1. define getter function(used when cache missed) implement Getter interface

   getFromDB := gocache.GetterFunc(func(key string) ([]byte, error) {
       data, err :=  db.Get(key) // get data from database by the key
       if err == nil {
           return data, nil
       }
   	return nil, fmt.Errorf("%s not exist", key)
   })
   

2. initialize a group named as "scores" with max 2048 cached items

   goc := gocache.NewGroup("scores", 2<<10, getFromDB)
   

3. create httpPool instance using local addr

   peers := gocache.NewHTTPPool("http://localhost:8001")
   

4. set peers on httpPool instance, there are three peers, every addr is meant to a gocache peer

   peers.SetPeers("http://localhost:8002", "http://localhost:8002", "http://localhost:8003")
   

5. register httpPool(peers) instance on group instance

   goc.RegisterPeers(peers)
   

License

MIT © sino