react-grant

Library for conditional rendering based on access

Installation

npm i react-grant

or

yarn add react-grant

Usage

Grant

Grant access to specific trees by using the Grant.

import { Grant } from 'react-grant';

<div>
  <Grant accessTo="show:a article:edit">
    <Article ... />
  </Grant>
  <Grant accessTo="show:a article:edit article:delete">
    <Article ... />
  </Grant>
</div>

Can

Check access with Can

import { Can } from 'react-grant';

const Article = ({}) => (
  <div>
    <span>Hello</span>
    <Can do="article:edit">
      <Link>Edit</Link>
    </Can>
  </div>
);

Or do conditional rendering with child function

import { Can } from 'react-grant';

const Article = ({}) => (
  <div>
    <span>Hello</span>
    <Can do="article:edit">
      {can => (can ? <Link>Edit</Link> : <span>Cant edit</span>)}
    </Can>
  </div>
);

HoCs

Can

import { canDo } from 'react-grant';

const EditLink = ({}) => <Link>Edit</Link>;

export default canDo('edit:article', EditLink);

Inject canDo

import { withCan } from 'react-grant';

const EditLink = ({ canDo }) => {
  return (
    {canDo("edit:article") && <Link>Edit</Link>}
  );
};

export default withCan(EditLink);

Programmer error protection

Wrap your entire application in the GrantDefinitions to define which actions are available. If a Grant is trying to grant access to an undefined action or a Can is trying to consume an unknown action an error will be thrown.

import { GrantDefinitions } from 'react-grant';

// Both string and array based input works for both acitons & defined
const defined = ["show:a", "show:b", "article:edit", "article:delete"];

<GrantDefinitions defined={defined}>
  {...}
</GrantDefinitions>