fascinating-indigo•14mo ago

How to send toast with CanAccess ?

Is it possible to send a notification with CanAccess component ? Redirection works but letting the user know why he cant access will be great. As of yet the disabling of button on hover shows the title, but what if the user tries to enter with the url. CanAcces works but with no feedback. Adding toast to the redirection will be helpful. This is how I am doing it. everything works but a toast will be great !

        <CanAccess fallback={<CatchAllNavigate to="/" />} >

        <CanAccess fallback={<CatchAllNavigate to="/" />} >

33 Replies

kapa.ai•14mo ago

Hi @haribo_mushi. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- You can use the fallback prop of the <CanAccess /> component to display a toast notification using react-toastify when the user doesn't have access. First, you need to create a custom fallback component that triggers the toast notification and then redirects the user. Here's an example of how you can create a custom fallback component:

import { useEffect } from "react";
import { toast } from "react-toastify";
import { CatchAllNavigate } from "@refinedev/core";

const CustomFallback = () => {
  useEffect(() => {
    toast.error("You don't have access to this page.");
  }, []);

  return <CatchAllNavigate to="/" />;
};

import { useEffect } from "react";
import { toast } from "react-toastify";
import { CatchAllNavigate } from "@refinedev/core";

const CustomFallback = () => {
  useEffect(() => {
    toast.error("You don't have access to this page.");
  }, []);

  return <CatchAllNavigate to="/" />;
};

Now, you can use this CustomFallback component as the fallback prop in your <CanAccess /> component:

<CanAccess fallback={<CustomFallback />}>
  // Your protected content here
</CanAccess>

<CanAccess fallback={<CustomFallback />}>
  // Your protected content here
</CanAccess>

This way, when a user tries to access the protected content without the required permissions, they will see a toast notification and be redirected to the specified path ("/" in this example). ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•14mo ago

<@886127984711438378> kapa.ai is still learning and improving, please let us how it did by reacting below

fascinating-indigo•14mo ago

Hey @kapa.ai does refine offers prefetching ? a prefetching hook for the pages will be great, do u have a demo for it ? lets say I am on a home page and I have my bookings card. On hovering that card I want to trigger prefetch so when the user actucally clicks that my useTable in that booking resource List page will already have it. That will speed up my perfmance

kapa.ai•14mo ago

Let me check the knowledge base for you. One moment! :books: ---------------------- Hmm, I don't know enough to give you a confident answer yet. However, you can explore the refine documentation for more information on available features and hooks: refine documentation (https://refine.dev/docs). ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•14mo ago

<@886127984711438378> kapa.ai is still learning and improving, please let us how it did by reacting below

afraid-scarlet•14mo ago

this is related the router you are using <CanAccess> component doesn't have this feature. you can open feature request if you want

fascinating-indigo•14mo ago

surw will do so I dont think so its not realted to any routing library prefetching is done by server state mangement libraries like rtk from redux or react-query which is being used by refine ideally it would be great if refine can offer a prefetch hook I have already implemented prefetching of data in my client facing website where I am using rtk-query I beleive react-query also offers prefetching

afraid-scarlet•14mo ago

i was thinking you are talking about this: https://developer.mozilla.org/en-US/docs/Web/HTTP/Link_prefetching_FAQ https://nextjs.org/docs/pages/api-reference/components/link#prefetch if you are talking about this: https://tanstack.com/query/v4/docs/react/guides/prefetching yeah actually it's a good feature. we can add this to <ShowButton>, <ListButton> etc. you can open feature request again if you want 🥹 whether you open or not i will discuss this feature with the core team

fascinating-indigo•14mo ago

sure, I will open for both of them 👍

afraid-scarlet•14mo ago

thanks 🚀

fascinating-indigo•14mo ago

yup was talking about this one

dependent-tan•14mo ago

Hey @haribo_mushi, we think that prefetching will be a good addition to our feature set. We'll try to include it in our next sprints 🚀 For your case in CanAccess, did you considered using useCan instead of the CanAccess? If you're doing page level controls + need some callbacks, I think it can be a solution 🤔

fascinating-indigo•14mo ago

CanAccess is perfect for me

dependent-tan•14mo ago

But i guess its easier to use the component since it infers the resource, action, id etc.

fascinating-indigo•14mo ago

since I want it on my entire application

dependent-tan•14mo ago

Yeah makes sense

fascinating-indigo•14mo ago

I am using useCan on my custom pages and custom components as thats where refine wont be able to find the access control tbh I am just shocked by how easily refine excutes it access control and automates it on the default create/delete/edit buttons yup, the inferring is really great i just had to set up my access provider and it works great

dependent-tan•14mo ago

Do you think accepting a callback function in CanAccess will do the trick for you about showing a toast? We may also consider a built-in integration with notificationProviders 🤔

fascinating-indigo•14mo ago

oh yeah , I can just wrap the fallback that I am providing it with a wrapper where it will execute the toast But I think having the optional params to the component will be great. So if the user wants his CanAccess component to show a toast than he can simply pass showToast={true} as a prop

dependent-tan•14mo ago

Let's have both, we can do provide an onSettled (or something like that) and accept a callback function and pass can, reason and additional params to it for users to customize the callback (show notification, log to the server or anything) And also have props like successNotification and errorNotification (similar to useForm but in this case successNotification might be useless 😅 ) You can choose to show the default notification for it, customize it or disable it (the default will be disabled)

fascinating-indigo•14mo ago

oh yeah I just created a feature request edit: i already created github issues for this we can have toastMessage, and showToast if showToast is true but no toastMessage then it will extract the reason from the accessProvider. If the reason is not avail then we can just run a default message which can be "unauthorised"

deep-jade•14mo ago

Hey @kapa.ai , I have setup a rbac guard for my appication on backend. Now in frontend, i am using refine, what kind of configuration do i need to do, so that only the authorized users can access that particular api. In the frontend i am using refine with mui.

kapa.ai•14mo ago

Let me check the knowledge base for you. One moment! :books: ---------------------- To set up role-based access control (RBAC) in your refine application, you need to create a custom authProvider that handles authentication and authorization. You can customize the authProvider methods according to your needs and control the privileges of your users. Here's an example of how to create a custom authProvider:

// authProvider.ts
import { AuthProvider } from "@refine.dev/core";

export const authProvider: AuthProvider = {
  login: async ({ username, password }) => {
    // Implement your login logic here
  },
  logout: async () => {
    // Implement your logout logic here
  },
  checkError: async (error) => {
    // Implement your error checking logic here
  },
  checkAuth: async () => {
    // Implement your authentication checking logic here
  },
  getPermissions: async () => {
    // Implement your permissions fetching logic here
  },
};

// authProvider.ts
import { AuthProvider } from "@refine.dev/core";

export const authProvider: AuthProvider = {
  login: async ({ username, password }) => {
    // Implement your login logic here
  },
  logout: async () => {
    // Implement your logout logic here
  },
  checkError: async (error) => {
    // Implement your error checking logic here
  },
  checkAuth: async () => {
    // Implement your authentication checking logic here
  },
  getPermissions: async () => {
    // Implement your permissions fetching logic here
  },
};

Then, you need to pass this authProvider to the <Refine> component in your main application file:

// App.tsx
import { Refine } from "@refinedev/core";
import { authProvider } from "./authProvider";

const App = () => {
  return (
    <Refine authProvider={authProvider}>
      // Your application components here
    </Refine>
  );
};

// App.tsx
import { Refine } from "@refinedev/core";
import { authProvider } from "./authProvider";

const App = () => {
  return (
    <Refine authProvider={authProvider}>
      // Your application components here
    </Refine>
  );
};

To restrict access to specific components or pages based on user permissions, you can use the <CanAccess> component provided by refine. You can pass the required permissions to the permissions prop and provide a fallback component to be displayed when the user doesn't have the required permissions. Here's an example of how to use the <CanAccess> component:

import { CanAccess, CatchAllNavigate } from "@refinedev/core";
const MyProtectedComponent = () => {
  return (
    <CanAccess
      permissions={["admin"]}
      fallback={<CatchAllNavigate to="/login" />}
    >
      // Your protected content here
    </CanAccess>
  );
};

import { CanAccess, CatchAllNavigate } from "@refinedev/core";
const MyProtectedComponent = () => {
  return (
    <CanAccess
      permissions={["admin"]}
      fallback={<CatchAllNavigate to="/login" />}
    >
      // Your protected content here
    </CanAccess>
  );
};

In this example, only users with the "admin" permission can access the protected content. If a user doesn't have the required permission, they will be redirected to the "/login" page. For more information on custom authentication with refine, you can refer to these examples: - Material UI example (https://refine.dev/docs/examples/authentication/mui) - Chakra UI example (https://refine.dev/docs/examples/authentication/chakra-ui) ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•14mo ago

<@713646363425898567> kapa.ai is still learning and improving, please let us how it did by reacting below

deep-jade•14mo ago

@kapa.ai , did not understood how this MyProtectedComponent will be implemented in my app. Please provide with a detailed end to end asnwer

kapa.ai•14mo ago

Let me check the knowledge base for you. One moment! :books: ---------------------- To implement the MyProtectedComponent in your refine application, follow these steps: 1. Create a custom authProvider as mentioned in the previous answer. This will handle authentication and authorization for your application. 2. Pass the authProvider to the <Refine> component in your main application file (e.g., App.tsx). 3. Create the MyProtectedComponent that uses the <CanAccess> component to restrict access based on user permissions. 4. Use the MyProtectedComponent in your application where you want to protect the content. Here's a detailed example: 1. Create a custom authProvider:

// authProvider.ts
import { AuthProvider } from "@refinedev/core";

export const authProvider: AuthProvider = {
  // Implement your authProvider methods here
};

// authProvider.ts
import { AuthProvider } from "@refinedev/core";

export const authProvider: AuthProvider = {
  // Implement your authProvider methods here
};

2. Pass the authProvider to the <Refine> component:

// App.tsx
import { Refine } from "@refinedev/core";
import { authProvider } from "./authProvider";

const App = () => {
  return (
    <Refine authProvider={authProvider}>
      // Your application components here
    </Refine>
  );
};

// App.tsx
import { Refine } from "@refinedev/core";
import { authProvider } from "./authProvider";

const App = () => {
  return (
    <Refine authProvider={authProvider}>
      // Your application components here
    </Refine>
  );
};

3. Create the MyProtectedComponent:

// MyProtectedComponent.tsx
import { CanAccess, CatchAllNavigate } from "@refinedev/core";

const MyProtectedComponent = () => {
  return (
    <CanAccess
      permissions={["admin"]}
      fallback={<CatchAllNavigate to="/login" />}
    >
      // Your protected content here
    </CanAccess>
  );
};

export default MyProtectedComponent;

// MyProtectedComponent.tsx
import { CanAccess, CatchAllNavigate } from "@refinedev/core";

const MyProtectedComponent = () => {
  return (
    <CanAccess
      permissions={["admin"]}
      fallback={<CatchAllNavigate to="/login" />}
    >
      // Your protected content here
    </CanAccess>
  );
};

export default MyProtectedComponent;

4. Use the MyProtectedComponent in your application:

// SomePage.tsx
import MyProtectedComponent from "./MyProtectedComponent";

const SomePage = () => {
  return (
    <div>
      <h1>Some Page</h1>
      <MyProtectedComponent />
    </div>
  );
};

export default SomePage;

// SomePage.tsx
import MyProtectedComponent from "./MyProtectedComponent";

const SomePage = () => {
  return (
    <div>
      <h1>Some Page</h1>
      <MyProtectedComponent />
    </div>
  );
};

export default SomePage;

In this example, the MyProtectedComponent will only be accessible to users with the "admin" permission. If a user doesn't have the required permission, they will be redirected to the "/login" page. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•14mo ago

<@713646363425898567> kapa.ai is still learning and improving, please let us how it did by reacting below

deep-jade•14mo ago

@kapa.ai still not clear how without fetching any details of users role from the backend , you are giving permissions in canAccess component.

kapa.ai•14mo ago

Let me check the knowledge base for you. One moment! :books: Sorry @jenish7822, I am experiencing especially high traffic right now, please try again. :technologist:

dependent-tan•14mo ago

Hey @jenish7822 can you check this document on Access Control Provider https://refine.dev/docs/api-reference/core/providers/accessControl-provider/#overview

Access Control Provider | refine

Overview

deep-jade•14mo ago

Hi @aliemirs , i have checked this doc but it is not clear from the docs that how roles are managed with useCan, also i want to do it without using casbin and cerbos

fascinating-indigo•14mo ago

its based on the actions and resource, you just need to monitor the resource/action and return the object in the following shape {can:boolean, reason ?: string}. Refine will handle the rest u need to update the can method of the access provider this is how I implemented my own custom one

wise-white•14mo ago

Thanks for the help @haribo_mushi !