Create an Authentication Route Guard

In front-end web development, route guards are objects used to control access to certain routes in an application. They can be used to implement authentication, authorization, and other security measures. Additionally, they can control the availability of routes in different environments or perform other tasks that need to be done before a route is displayed. In Nuxt, the feature of a route guard is supported by a function called a middleware.

For the survey application, a route guard is needed to prevent unauthorized access to the admin routes where surveys can be created and responses can be viewed.