move sessions and websocket examples, gofmt, fix misspells and experimental optimizations 🍐

Former-commit-id: cae4f94bbd404d26ab13dade02b52f81feaddf24

_examples/sessions/securecookie/main.go

@@ -0,0 +1,80 @@
+package main
+
+// developers can use any library to add a custom cookie encoder/decoder.
+// At this example we use the gorilla's securecookie package:
+// $ go get github.com/gorilla/securecookie
+// $ go run main.go
+
+import (
+	"github.com/kataras/iris"
+	"github.com/kataras/iris/context"
+
+	"github.com/kataras/iris/sessions"
+
+	"github.com/gorilla/securecookie"
+)
+
+func newApp() *iris.Application {
+	app := iris.New()
+
+	cookieName := "mycustomsessionid"
+	// AES only supports key sizes of 16, 24 or 32 bytes.
+	// You either need to provide exactly that amount or you derive the key from what you type in.
+	hashKey := []byte("the-big-and-secret-fash-key-here")
+	blockKey := []byte("lot-secret-of-characters-big-too")
+	secureCookie := securecookie.New(hashKey, blockKey)
+
+	mySessions := sessions.New(sessions.Config{
+		Cookie: cookieName,
+		Encode: secureCookie.Encode,
+		Decode: secureCookie.Decode,
+	})
+
+	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) {
+
+		//set session values
+		s := mySessions.Start(ctx)
+		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
+		s := mySessions.Start(ctx)
+		name := s.GetString("name")
+
+		ctx.Writef("The name on the /set was: %s", name)
+	})
+
+	app.Get("/delete", func(ctx context.Context) {
+		// delete a specific key
+		s := mySessions.Start(ctx)
+		s.Delete("name")
+	})
+
+	app.Get("/clear", func(ctx context.Context) {
+		// removes all entries
+		mySessions.Start(ctx).Clear()
+	})
+
+	app.Get("/destroy", func(ctx context.Context) {
+		//destroy, removes the entire session data and cookie
+		mySessions.Destroy(ctx)
+	}) // Note about destroy:
+	//
+	// You can destroy a session outside of a handler too, using the:
+	// mySessions.DestroyByID
+	// mySessions.DestroyAll
+
+	return app
+}
+
+func main() {
+	app := newApp()
+	app.Run(iris.Addr(":8080"))
+}