Sample TS file for authorization

authz.ts

const ACTIONS = ["view" , "edit" , "remove" , "create"] as const
type Action = typeof ACTIONS[number]

const RESOURCES = ["post", "product"] as const
type Resource = typeof RESOURCES[number]

const makePermission = (action: Action, resource: Resource) => `${action}:${resource}`

const PERMISSIONS = {
  viewer: [
    makePermission("view", "product"),
  ],
  editor: [
    makePermission("view", "post"),
    makePermission("create", "post"),
    makePermission("edit", "post"),
  ],
  admin: [
    makePermission("view", "post"),
    makePermission("create", "post"),
    makePermission("edit", "post"),
    makePermission("remove", "post"),
  ],
}
type Role = keyof typeof PERMISSIONS

export function checkPermission(role: Role, action: Action, resource: Resource): boolean {
  const permissions = PERMISSIONS[role]
  if (!permissions?.length) return false

  const permissionToCheck = makePermission(action, resource)
  return permissions.includes(permissionToCheck)
}