Before we begin, we need to install the libraries that we will use for this example:

npm install

To start the application, we can run:

node index.js

Now, using any HTTP client with support for cookies (like Postman, or your web browser) make a sign-in request with the appropriate credentials:

POST http://localhost:8080/signin
{"username":"user2","password":"password2"}

You can now try hitting the welcome route from the same client to get the welcome message:

GET http://localhost:8080/welcome

Hit the refresh route, and then inspect the clients cookies to see the new value of the session_token:

POST http://localhost:8080/refresh

Finally, call the logout route to clear session data:

GET http://localhost:8080/logout

Calling the welcome and refresh routes after this will result in a 401 error.