session ============== session is a Go session manager. It can use many session providers. Just like the `database/sql` and `database/sql/driver`. ## How to install? go get github.com/astaxie/beego/session ## What providers are supported? As of now this session manager support memory, file, Redis and MySQL. ## How to use it? First you must import it import ( "github.com/astaxie/beego/session" ) Then in you web app init the global session manager var globalSessions *session.Manager * Use **memory** as provider: func init() { globalSessions, _ = session.NewManager("memory", "gosessionid", 3600,"") go globalSessions.GC() } * Use **file** as provider, the last param is the path where you want file to be stored: func init() { globalSessions, _ = session.NewManager("file", "gosessionid", 3600, "./tmp") go globalSessions.GC() } * Use **Redis** as provider, the last param is the Redis conn address,poolsize,password: func init() { globalSessions, _ = session.NewManager("redis", "gosessionid", 3600, "127.0.0.1:6379,100,astaxie") go globalSessions.GC() } * Use **MySQL** as provider, the last param is the DSN, learn more from [mysql](https://github.com/go-sql-driver/mysql#dsn-data-source-name): func init() { globalSessions, _ = session.NewManager( "mysql", "gosessionid", 3600, "username:password@protocol(address)/dbname?param=value") go globalSessions.GC() } Finally in the handlerfunc you can use it like this func login(w http.ResponseWriter, r *http.Request) { sess := globalSessions.SessionStart(w, r) defer sess.SessionRelease() username := sess.Get("username") fmt.Println(username) if r.Method == "GET" { t, _ := template.ParseFiles("login.gtpl") t.Execute(w, nil) } else { fmt.Println("username:", r.Form["username"]) sess.Set("username", r.Form["username"]) fmt.Println("password:", r.Form["password"]) } } ## How to write own provider? When you develop a web app, maybe you want to write own provider because you must meet the requirements. Writing a provider is easy. You only need to define two struct types (Session and Provider), which satisfy the interface definition. Maybe you will find the **memory** provider as good example. type SessionStore interface { Set(key, value interface{}) error //set session value Get(key interface{}) interface{} //get session value Delete(key interface{}) error //delete session value SessionID() string //back current sessionID SessionRelease() // release the resource & save data to provider Flush() error //delete all data } type Provider interface { SessionInit(maxlifetime int64, savePath string) error SessionRead(sid string) (SessionStore, error) SessionExist(sid string) bool SessionRegenerate(oldsid, sid string) (SessionStore, error) SessionDestroy(sid string) error SessionAll() int //get all active session SessionGC() } ## LICENSE BSD License http://creativecommons.org/licenses/BSD/