Add More Examples & Categorized in Folders & TOC

Former-commit-id: ce4d711a75a4ba08ffab075e6baa88724725885b

_examples/examples/advanced/httptest/main.go

@@ -0,0 +1,41 @@
+package main
+
+import (
+	"gopkg.in/kataras/iris.v6"
+	"gopkg.in/kataras/iris.v6/adaptors/httprouter"
+	"gopkg.in/kataras/iris.v6/adaptors/sessions"
+)
+
+func newApp() *iris.Framework {
+	app := iris.New()
+	app.Adapt(httprouter.New())
+	app.Adapt(sessions.New(sessions.Config{Cookie: "mysessionid"}))
+
+	app.Get("/hello", func(ctx *iris.Context) {
+		sess := ctx.Session()
+		if !sess.HasFlash() /* or sess.GetFlash("name") == "", same thing here */ {
+			ctx.HTML(iris.StatusUnauthorized, "<h1> Unauthorized Page! </h1>")
+			return
+		}
+
+		ctx.JSON(iris.StatusOK, iris.Map{
+			"Message": "Hello",
+			"From":    sess.GetFlash("name"),
+		})
+	})
+
+	app.Post("/login", func(ctx *iris.Context) {
+		sess := ctx.Session()
+		if !sess.HasFlash() {
+			sess.SetFlash("name", ctx.FormValue("name"))
+		}
+		// let's no redirect, just set the flash message, nothing more.
+	})
+
+	return app
+}
+
+func main() {
+	app := newApp()
+	app.Listen(":8080")
+}