This server handles user authentication. In our very simple case, it will only ask for an username, but we can think of improving it to interact with a LDAP server. Once the user authenticated itself, it server will place a Macaroon in the user's browser, with a status caveat, depending on the route used:
/, they will have the "student" status.
/teacher, they will have the "teacher" status.
npm install in this directory to install the dependencies, then run either
npm start or
node server.js to start the server.