veb: deprecate vweb (part 2); move all vweb examples to veb

examples/vweb/middleware/using_middleware.v

@@ -1,107 +0,0 @@
-module main
-
-import vweb
-
-// for another example see vlib/vweb/tests/middleware_test_server.v
-const http_port = 8080
-
-struct App {
-	vweb.Context
-	middlewares map[string][]vweb.Middleware
-mut:
-	is_authenticated bool
-}
-
-fn main() {
-	mut app := new_app()
-	vweb.run(app, http_port)
-}
-
-fn new_app() &App {
-	mut app := &App{
-		middlewares: {
-			// chaining is allowed, middleware will be evaluated in order
-			'/admin/': [other_func1, other_func2]
-			'/early':  [middleware_early]
-		}
-	}
-
-	// do stuff with app
-	// ...
-	return app
-}
-
-@['/']
-pub fn (mut app App) index() vweb.Result {
-	println('Index page')
-	title := 'Home Page'
-
-	content := $tmpl('templates/index.html')
-	base := $tmpl('templates/base.html')
-	return app.html(base)
-}
-
-@[middleware: check_auth]
-@['/admin/secrets']
-pub fn (mut app App) secrets() vweb.Result {
-	println('Secrets page')
-	title := 'Secret Admin Page'
-
-	content := $tmpl('templates/secret.html')
-	base := $tmpl('templates/base.html')
-	return app.html(base)
-}
-
-@['/admin/:sub']
-pub fn (mut app App) dynamic(sub string) vweb.Result {
-	println('Dynamic page')
-	title := 'Secret dynamic'
-
-	content := sub
-	base := $tmpl('templates/base.html')
-	return app.html(base)
-}
-
-@['/early']
-pub fn (mut app App) early() vweb.Result {
-	println('Early page')
-	title := 'Early Exit'
-
-	content := $tmpl('templates/early.html')
-	base := $tmpl('templates/base.html')
-	return app.html(base)
-}
-
-// is always executed first!
-pub fn (mut app App) before_request() {
-	app.is_authenticated = false
-	println('0')
-}
-
-pub fn (mut app App) check_auth() bool {
-	println('3')
-	if app.is_authenticated == false {
-		app.redirect('/')
-	}
-	return app.is_authenticated
-}
-
-fn other_func1(mut ctx vweb.Context) bool {
-	println('1')
-	return true
-}
-
-fn other_func2(mut ctx vweb.Context) bool {
-	println('2')
-
-	// ...
-	return true
-}
-
-fn middleware_early(mut ctx vweb.Context) bool {
-	println('4')
-	ctx.text(':(')
-
-	// returns false, so the middleware propagation is stopped and the user will see the text ":("
-	return false
-}