Gate

A simple gate class that can help with protecting and checking user abilities.

This package is made to run in Nodejs because checking the gate access should be done in the backend but it can be used on the client side. For example to show or hide ui elements or protect client side routes

Define the gate rules

import { Gate } from 'gate'

const user = { id: 1, role: 'admin' }

export function useGate({ user }) {
  const gate = new Gate({ user })

  gate.before(({ user }) => {
    return user.role === 'god'
  })

  gate.define('edit-users', ({ user }) => {
    return user.role === 'admin'
  })

  gate.define('edit-post', ({ user, post }) => {
    return post.user_id === user.id
  })

  return gate
}

Use the gate rules

import { useGate } from 'domain/gate'

const gate = useGate({ user })

gate.allows('edit-users')

const post = db.get('post')
gate.check('edit-post', { post })