1 use ssdb as storage, because it support the redis protocal.
  so you can use redis for test.
  
     git clone https://github.com/ideawu/ssdb-rocks.git
     see http://ssdb.io/
     
2 add go-redis storage client
     go get github.com/garyburd/redigo
     see https://github.com/garyburd/redigo
     
3 use json as protocal
     encoding/json
     json.Marshal or json.Unmarshal