Session DB file storage: https://github.com/kataras/iris/issues/702 example added

Tested on Windows and worked, waiting for more testers.


Former-commit-id: 2b5be0202c1124f424d2276948c3203677f26a56

_examples/sessions/database/redis/main.go

@@ -0,0 +1,74 @@
+package main
+
+import (
+	"github.com/kataras/iris"
+	"github.com/kataras/iris/context"
+
+	"github.com/kataras/iris/sessions"
+	"github.com/kataras/iris/sessions/sessiondb/redis"
+	"github.com/kataras/iris/sessions/sessiondb/redis/service"
+)
+
+func main() {
+	// replace with your running redis' server settings:
+	db := redis.New(service.Config{Network: service.DefaultRedisNetwork,
+		Addr:          service.DefaultRedisAddr,
+		Password:      "",
+		Database:      "",
+		MaxIdle:       0,
+		MaxActive:     0,
+		IdleTimeout:   service.DefaultRedisIdleTimeout,
+		Prefix:        "",
+		MaxAgeSeconds: service.DefaultRedisMaxAgeSeconds}) // optionally configure the bridge between your redis server
+
+	sess := sessions.New(sessions.Config{Cookie: "sessionscookieid"})
+
+	//
+	// IMPORTANT:
+	//
+	sess.UseDatabase(db)
+
+	// the rest of the code stays the same.
+	app := iris.New()
+
+	app.Get("/", func(ctx context.Context) {
+		ctx.Writef("You should navigate to the /set, /get, /delete, /clear,/destroy instead")
+	})
+	app.Get("/set", func(ctx context.Context) {
+		s := sess.Start(ctx)
+		//set session values
+		s.Set("name", "iris")
+
+		//test if setted here
+		ctx.Writef("All ok session setted to: %s", s.GetString("name"))
+	})
+
+	app.Get("/get", func(ctx context.Context) {
+		// get a specific key, as string, if no found returns just an empty string
+		name := sess.Start(ctx).GetString("name")
+
+		ctx.Writef("The name on the /set was: %s", name)
+	})
+
+	app.Get("/delete", func(ctx context.Context) {
+		// delete a specific key
+		sess.Start(ctx).Delete("name")
+	})
+
+	app.Get("/clear", func(ctx context.Context) {
+		// removes all entries
+		sess.Start(ctx).Clear()
+	})
+
+	app.Get("/destroy", func(ctx context.Context) {
+		//destroy, removes the entire session data and cookie
+		sess.Destroy(ctx)
+	})
+
+	app.Get("/update", func(ctx context.Context) {
+		// updates expire date with a new date
+		sess.ShiftExpiraton(ctx)
+	})
+
+	app.Run(iris.Addr(":8080"))
+}