Update README.md

README.md

@@ -15,38 +15,69 @@ go get github.com/yosssi/boltstore/...
 ## Example
 
 ```go
-// Fetch new store.
-store, err := boltstore.New(
-	boltstore.Config{
-		SessionOptions: sessions.Options{
-			MaxAge: 60 * 60 * 24 * 30, // 30days
-		},
-	},
-	[]byte("secret-key"),
+package main
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/boltdb/bolt"
+	"github.com/gorilla/sessions"
+	"github.com/yosssi/boltstore/reaper"
+	"github.com/yosssi/boltstore/store"
 )
-if err != nil {
-	panic(err)
-}
-defer store.Close()
 
-// Get a session.
-session, err := store.Get(r, "session-key")
-if err != nil {
-	panic(err)
+var db *bolt.DB
+
+func handler(w http.ResponseWriter, r *http.Request) {
+	if r.URL.Path[1:] == "favicon.ico" {
+		return
+	}
+
+	// Fetch a new store.
+	str, err := store.New(
+		db,
+		store.Config{
+			SessionOptions: sessions.Options{
+				MaxAge: 60 * 60 * 24 * 30, // 30days
+			},
+		},
+		[]byte("secret-key"),
+	)
+
+	// Get a session.
+	session, err := str.Get(r, "session-key")
+	if err != nil {
+		panic(err)
+	}
+
+	// Add a value.
+	session.Values["foo"] = "bar"
+
+	// Save.
+	if err := sessions.Save(r, w); err != nil {
+		panic(err)
+	}
+
+	// Delete the session.
+	session.Options.MaxAge = -1
+	if err := sessions.Save(r, w); err != nil {
+		panic(err)
+	}
+
+	fmt.Fprintf(w, "Hello BoltStore")
 }
 
-// Add a value.
-session.Values["foo"] = "bar"
-
-// Save.
-if err := sessions.Save(r, w); err != nil {
-	panic(err)
-}
-
-// Delete the session.
-session.Options.MaxAge = -1
-if err := sessions.Save(r, w); err != nil {
-	panic(err)
+func main() {
+	db, err := bolt.Open("./sessions.db", 0666)
+	if err != nil {
+		panic(err)
+	}
+	defer db.Close()
+	// Invoke a reaper which removes expired sessions.
+	defer reaper.Quit(reaper.Run(db, reaper.Options{}))
+	http.HandleFunc("/", handler)
+	http.ListenAndServe(":8080", nil)
 }
 ```