examples: fullstack vweb example (#16761)

examples/vweb_fullstack/src/user_controllers.v

@@ -0,0 +1,66 @@
+module main
+
+import vweb
+import encoding.base64
+import json
+
+['/controller/users'; get]
+pub fn (mut app App) controller_get_all_user() vweb.Result {
+	// token := app.get_cookie('token') or { '' }
+	token := app.req.header.get_custom('token') or { '' }
+
+	if !auth_verify(token) {
+		app.set_status(401, '')
+		return app.text('Not valid token')
+	}
+
+	response := app.service_get_all_user() or {
+		app.set_status(400, '')
+		return app.text('${err}')
+	}
+	return app.json(response)
+}
+
+['/controller/user'; get]
+pub fn (mut app App) controller_get_user() vweb.Result {
+	// token := app.get_cookie('token') or { '' }
+	token := app.req.header.get_custom('token') or { '' }
+
+	if !auth_verify(token) {
+		app.set_status(401, '')
+		return app.text('Not valid token')
+	}
+
+	jwt_payload_stringify := base64.url_decode_str(token.split('.')[1])
+
+	jwt_payload := json.decode(JwtPayload, jwt_payload_stringify) or {
+		app.set_status(501, '')
+		return app.text('jwt decode error')
+	}
+
+	user_id := jwt_payload.sub
+
+	response := app.service_get_user(user_id.int()) or {
+		app.set_status(400, '')
+		return app.text('${err}')
+	}
+	return app.json(response)
+}
+
+['/controller/user/create'; post]
+pub fn (mut app App) controller_create_user(username string, password string) vweb.Result {
+	if username == '' {
+		app.set_status(400, '')
+		return app.text('username cannot be empty')
+	}
+	if password == '' {
+		app.set_status(400, '')
+		return app.text('password cannot be empty')
+	}
+	app.service_add_user(username, password) or {
+		app.set_status(400, '')
+		return app.text('error: ${err}')
+	}
+	app.set_status(201, '')
+	return app.text('User created successfully')
+}