material-framework/lib/controllers/auth/permissions.js

const permissions = []

const register = (perm) => {

  if (!permissions.includes(perm)) {
    permissions.push(perm)
    permissions.sort()
  }

}

const list = (req, res) => {
  res.status(200).send(permissions)
}


module.exports = {
  register,
  list
}