remove experimental-handlers examples, users should visit github.com/iris-contrib/middleware instead, let's not have duplications

Former-commit-id: 72754683d1bcd4325b5fcd9f57c6cb87f1d7337d

_examples/experimental-handlers/jwt/main.go

@@ -1,53 +0,0 @@
-// iris provides some basic middleware, most for your learning curve.
-// You can use any net/http compatible middleware with iris.FromStd wrapper.
-//
-// JWT net/http video tutorial for golang newcomers: https://www.youtube.com/watch?v=dgJFeqeXVKw
-//
-// This middleware is the only one cloned from external source: https://github.com/auth0/go-jwt-middleware
-// (because it used "context" to define the user but we don't need that so a simple iris.FromStd wouldn't work as expected.)
-package main
-
-// $ go get -u github.com/dgrijalva/jwt-go
-// $ go run main.go
-
-import (
-	"github.com/kataras/iris"
-
-	"github.com/dgrijalva/jwt-go"
-	jwtmiddleware "github.com/iris-contrib/middleware/jwt"
-)
-
-func myHandler(ctx iris.Context) {
-	user := ctx.Values().Get("jwt").(*jwt.Token)
-
-	ctx.Writef("This is an authenticated request\n")
-	ctx.Writef("Claim content:\n")
-
-	ctx.Writef("%#+v\n", user.Claims)
-}
-
-func main() {
-	app := iris.New()
-
-	jwtHandler := jwtmiddleware.New(jwtmiddleware.Config{
-		ValidationKeyGetter: func(token *jwt.Token) (interface{}, error) {
-			return []byte("My Secret"), nil
-		},
-		// When set, the middleware verifies that tokens are signed with the specific signing algorithm
-		// If the signing method is not constant the ValidationKeyGetter callback can be used to implement additional checks
-		// Important to avoid security issues described here: https://auth0.com/blog/2015/03/31/critical-vulnerabilities-in-json-web-token-libraries/
-		SigningMethod: jwt.SigningMethodHS256,
-	})
-
-	app.Use(jwtHandler.Serve)
-
-	app.Get("/ping", myHandler)
-
-	// Example request:
-	//  curl -X GET -H\
-	// "Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjozMjEzMjF9.8waEX7-vPKACa-Soi1pQvW3Rl8QY-SUFcHKTLZI4mvU"\
-	// http://localhost:3001/ping
-	//
-	//Read more at: https://jwt.io/
-	app.Run(iris.Addr("localhost:3001"))
-}