How to implement Role based restrictions/permissions in react redux app?

Question

I have a React-Redux-KoaJs application with multiple components. I have few user roles as well. Now i want to display few buttons, tables and div to only specific roles and hide those from others. Please remember i dont want to hide the whole component, but just a part of the components. Can anyone help me? Thanks in advance.

Answer 1

You can check the role or permission in every component as @Eudald Arranz proposed. Or you can write a component that will checks permissions for you. For example:

import PropTypes from 'prop-types';
import { connect } from 'react-redux';

const ShowForPermissionComponent = (props) => {
    const couldShow = props.userPermissions.includes(props.permission);
    return couldShow ? props.children : null;
};

ShowForPermissionComponent.propTypes = {
    permission: PropTypes.string.isRequired,
    userPermissions: PropTypes.array.isRequired
};


const mapStateToProps = state => ({
    userPermissions: state.user.permission //<--- here you will get permissions for your user from Redux store
});

export const ShowForPermission = connect(mapStateToProps)(ShowForPermissionComponent);

and then you can use this component like this:

import React from 'react';
import { ShowForPermission } from './ShowForPermission';

cons MyComponent = props => {
   return (
        <div>
            <ShowForPermission permission="DELETE">
                <button>Delete</button>
            </ShowForPermission>
        </div>
   );
}