Sessions

Create a main.go file and copy-paste the following code snippets:

package main
import (
"fmt"
"time"
"github.com/kataras/iris/v12"
"github.com/kataras/iris/v12/mvc"
"github.com/kataras/iris/v12/sessions"
)
func main() {
app := iris.New()
// Configure sessions manager as we used to.
sess := sessions.New(sessions.Config{Cookie: "mysession_cookie_name"})
app.Use(sess.Handler())
visitApp := mvc.New(app)
visitApp.Register(time.Now())
visitApp.Handle(new(VisitController))
app.Listen(":8080")
}

Controller

  • The VisitController.Session is automatically binded to the current sessions.Session.

  • The VisitController.StartTime is statically set to the server's start time with .Register(time.Now()) above.

type VisitController struct {
Session *sessions.Session
StartTime time.Time
}
func (c *VisitController) Get() string {
// it increments a "visits" value of integer by one,
// if the entry with key 'visits' doesn't exist
// it will create it for you.
visits := c.Session.Increment("visits", 1)
// write the current, updated visits.
since := time.Now().Sub(c.StartTime).Seconds()
return fmt.Sprintf("%d visit(s) from my current session in %0.1f seconds of server's up-time",
visits, since)
}

Run

Open a terminal session and execute:

$ go run main.go
  1. Prepare a client, e.g. your browser

  2. navigate to http://localhost:8080

  3. refresh the page some times

  4. close the browser

  5. re-open the browser (if it wasn't in private mode) and re-play 2.