flat-fuchsia•7d ago

How to implement access control provider in Next.js?

I'm encountering issues while implementing RBAC in my Refine project. Tech stack: Supabase, Next.js, Ant Design When I attempt to pass my access control provider to the Refine component, I receive the following error: "Functions cannot be passed directly to Client Components."

9 Replies

kapa.ai•7d ago

Hi @Andrea. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- To implement an access control provider in a Next.js project using Refine, you need to handle both client-side and server-side components appropriately. The error you're encountering, "Functions cannot be passed directly to Client Components," suggests that you might be trying to use server-side logic in a client-side component. Here's how you can address this: Step-by-Step Implementation 1. Define the Access Control Provider: You need to create an access control provider that includes a can method. This method will determine if a user can perform a specific action on a resource. Here's a basic example:

   import { AccessControlProvider } from "@refinedev/core";

   export const accessControlProvider: AccessControlProvider = {
     can: async ({ resource, action, params }) => {
       if (resource === "posts" && action === "edit") {
         return { can: false, reason: "Unauthorized" };
       }
       return { can: true };
     },
   };

   import { AccessControlProvider } from "@refinedev/core";

   export const accessControlProvider: AccessControlProvider = {
     can: async ({ resource, action, params }) => {
       if (resource === "posts" && action === "edit") {
         return { can: false, reason: "Unauthorized" };
       }
       return { can: true };
     },
   };

Source (https://refine.dev/docs/guides-concepts/authorization/#access-control-provider) 2. Use the Access Control Provider in Next.js: In Next.js, you can use the accessControlProvider in both client-side and server-side components. For client-side, wrap your pages with the CanAccess component to protect them from unauthorized access. For server-side, use the can function inside server-side functions like getServerSideProps. Client-Side Example:

   import { CanAccess } from "@refinedev/core";

   export const MyPage = () => (
     <CanAccess resource="posts" action="edit">
       <div>{/* ... */}</div>
     </CanAccess>
   );

   import { CanAccess } from "@refinedev/core";

   export const MyPage = () => (
     <CanAccess resource="posts" action="edit">
       <div>{/* ... */}</div>
     </CanAccess>
   );

Source (https://refine.dev/docs/routing/integrations/next-js/#access-control) Server-Side Example:

   import { accessControlProvider } from "src/accessControlProvider";

   export default async function PostList() {
     const { can } = await getData();

     if (!can) {
       return <h1>Unauthorized</h1>;
     }

     return (
       <div>
         <h1>Posts</h1>
       </div>
     );
   }

   async function getData() {
     const { can } = await accessControlProvider.can({
       resource: "posts",
       action: "list",
     });

     return { can };
   }

   import { accessControlProvider } from "src/accessControlProvider";

   export default async function PostList() {
     const { can } = await getData();

     if (!can) {
       return <h1>Unauthorized</h1>;
     }

     return (
       <div>
         <h1>Posts</h1>
       </div>
     );
   }

   async function getData() {
     const { can } = await accessControlProvider.can({
       resource: "posts",
       action: "list",
     });

     return { can };
   }

Source (https://refine.dev/docs/routing/integrations/next-js/#server-side-1) 3. Handling Client and Server Components: If you need to use providers on both the server and client side, you should create separate files for your providers and mark them as client or server functions. This separation ensures that you don't pass server-side logic directly to client components. Source (https://refine.dev/docs/routing/integrations/next-js/#faq) By following these steps, you should be able to implement an access control provider in your Next.js project using Refine without encountering the error related to passing functions to client components. If you need more detailed guidance, you can refer to the Access Control Provider documentation (https://refine.dev/docs/authorization/access-control-provider/). ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•7d ago

<@1288491934238904340> kapa.ai is still learning and improving, please let us know how it did by reacting below

flat-fuchsia•7d ago

I'm using antd design for the ui, how can i show/hide sider pages? @kapa.ai I'm using antd design for the ui, how can i show/hide sider pages?

kapa.ai•7d ago

Let me check the knowledge base for you. One moment! :books: ---------------------- To show or hide sider pages in an Ant Design-based UI using Refine, you can utilize the useThemedLayoutContext hook. This hook allows you to control the collapsed state of the Sider component. Here's how you can implement it: Example Implementation 1. Import Necessary Components: Make sure to import the required components and hooks from Refine and Ant Design.

   import { Refine } from "@refinedev/core";  
   import { ThemedLayoutV2, useThemedLayoutContext } from "@refinedev/antd";  
   import { ConfigProvider, Button, Space } from "antd";  
   import { BrowserRouter, Routes, Route, Outlet } from "react-router-dom";

   import { Refine } from "@refinedev/core";  
   import { ThemedLayoutV2, useThemedLayoutContext } from "@refinedev/antd";  
   import { ConfigProvider, Button, Space } from "antd";  
   import { BrowserRouter, Routes, Route, Outlet } from "react-router-dom";

2. Create a Dashboard Page with Toggle Buttons: You can create a component that includes buttons to toggle the visibility of the sider.

   const DashboardPage = () => {  
     const {  
       siderCollapsed,  
       setSiderCollapsed,  
       mobileSiderOpen,  
       setMobileSiderOpen,  
     } = useThemedLayoutContext();  

     return (  
       <Space style={{ paddingTop: 30 }}>  
         <Button  
           type="primary"  
           onClick={() => setMobileSiderOpen(!mobileSiderOpen)}  
         >  
           toggle mobile sider  
         </Button>  
         <Button type="primary" onClick={() => setSiderCollapsed(!siderCollapsed)}>  
           toggle collapse of sider  
         </Button>  
       </Space>  
     );  
   };

   const DashboardPage = () => {  
     const {  
       siderCollapsed,  
       setSiderCollapsed,  
       mobileSiderOpen,  
       setMobileSiderOpen,  
     } = useThemedLayoutContext();  

     return (  
       <Space style={{ paddingTop: 30 }}>  
         <Button  
           type="primary"  
           onClick={() => setMobileSiderOpen(!mobileSiderOpen)}  
         >  
           toggle mobile sider  
         </Button>  
         <Button type="primary" onClick={() => setSiderCollapsed(!siderCollapsed)}>  
           toggle collapse of sider  
         </Button>  
       </Space>  
     );  
   };

3. Integrate with the Main App Component: Use the DashboardPage within your main application component.

   const App: React.FC = () => {  
     return (  
       <BrowserRouter>  
         <ConfigProvider theme={RefineThemes.Blue}>  
           <Refine  
             // other providers and configurations
           >  
             <Routes>  
               <Route path="/" element={<DashboardPage />} />  
               {/* other routes */}
             </Routes>  
           </Refine>  
         </ConfigProvider>  
       </BrowserRouter>  
     );  
   };

   const App: React.FC = () => {  
     return (  
       <BrowserRouter>  
         <ConfigProvider theme={RefineThemes.Blue}>  
           <Refine  
             // other providers and configurations
           >  
             <Routes>  
               <Route path="/" element={<DashboardPage />} />  
               {/* other routes */}
             </Routes>  
           </Refine>  
         </ConfigProvider>  
       </BrowserRouter>  
     );  
   };

By using the useThemedLayoutContext hook, you can easily control the visibility of the sider in your Ant Design-based application. This approach allows you to dynamically show or hide sider pages based on user interactions. For more details, you can refer to the collapse/uncollapse Sider component with useThemedLayoutContext hook documentation (https://refine.dev/docs/ui-integrations/ant-design/components/themed-layout/#collapseuncollapse-sider-component-with-usethemedlayoutcontext-hook). ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•7d ago

<@1288491934238904340> kapa.ai is still learning and improving, please let us know how it did by reacting below

kapa.ai•7d ago

Sorry @Andrea, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist: Perhaps try again in 15mins?

flat-fuchsia•7d ago

@kapa.ai try again please. i'm using ant design for the ui, how can i show sider options based on role?

kapa.ai•7d ago

Let me check the knowledge base for you. One moment! :books: ---------------------- To show or hide sider options based on user roles in an Ant Design-based UI using Refine, you can leverage the accessControlProvider to manage permissions. This approach ensures that only authorized users can see specific menu items in the sider. Steps to Implement Role-Based Sider Options 1. Define the Access Control Provider: Create an accessControlProvider that specifies which roles have access to certain resources or actions.

   import { AccessControlProvider } from "@refinedev/core";

   export const accessControlProvider: AccessControlProvider = {
     can: async ({ resource, action }) => {
       const roles = (await authProvider.getPermissions?.()) || [];
       if (resource === "products" && action === "list") {
         return { can: roles.includes("admin") };
       }
       return { can: true };
     },
   };

   import { AccessControlProvider } from "@refinedev/core";

   export const accessControlProvider: AccessControlProvider = {
     can: async ({ resource, action }) => {
       const roles = (await authProvider.getPermissions?.()) || [];
       if (resource === "products" && action === "list") {
         return { can: roles.includes("admin") };
       }
       return { can: true };
     },
   };

2. Integrate Access Control with the Sider: Use the accessControlProvider to conditionally render menu items in the sider based on the user's role.

   import { Layout, Menu } from "antd";
   import { useAccessControl } from "@refinedev/core";

   const { Sider } = Layout;

   const MySider = () => {
     const { canAccess } = useAccessControl();

     return (
       <Sider>
         <Menu theme="dark" mode="inline">
           {canAccess({ resource: "products", action: "list" }) && (
             <Menu.Item key="1">Products</Menu.Item>
           )}
           {canAccess({ resource: "orders", action: "list" }) && (
             <Menu.Item key="2">Orders</Menu.Item>
           )}
         </Menu>
       </Sider>
     );
   };

   import { Layout, Menu } from "antd";
   import { useAccessControl } from "@refinedev/core";

   const { Sider } = Layout;

   const MySider = () => {
     const { canAccess } = useAccessControl();

     return (
       <Sider>
         <Menu theme="dark" mode="inline">
           {canAccess({ resource: "products", action: "list" }) && (
             <Menu.Item key="1">Products</Menu.Item>
           )}
           {canAccess({ resource: "orders", action: "list" }) && (
             <Menu.Item key="2">Orders</Menu.Item>
           )}
         </Menu>
       </Sider>
     );
   };

3. Use the Sider in Your Application: Integrate the MySider component into your main layout or application component.

   const AppLayout = () => (
     <Layout>
       <MySider />
       <Layout>
         {/* Other layout components like Header, Content, etc. */}
       </Layout>
     </Layout>
   );

   const AppLayout = () => (
     <Layout>
       <MySider />
       <Layout>
         {/* Other layout components like Header, Content, etc. */}
       </Layout>
     </Layout>
   );

By following these steps, you can control the visibility of sider options based on user roles, ensuring that only authorized users can access specific resources. This approach uses the accessControlProvider to manage permissions effectively. For more information, you can refer to the Access Control Provider documentation (https://refine.dev/docs/authorization/access-control-provider/). ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•7d ago

<@1288491934238904340> kapa.ai is still learning and improving, please let us know how it did by reacting below