How can I handle data loading in React Router v6?

How can I handle data loading in React Router v6?

In React Router v6, you can use the loader function to fetch data before rendering a route. This allows you to handle data loading efficiently.

Can you show me an example of using the loader function?

Sure! You can define a loader in your route like this:

import { createBrowserRouter, RouterProvider } from 'react-router-dom';

const router = createBrowserRouter([
  {
    path: '/users',
    element: <Users />, // Your component
    loader: async () => {
      const response = await fetch('/api/users');
      return response.json();
    },
  },
]);

<RouterProvider router={router} />

What happens if the data fails to load?

If the data fails to load, you can handle errors by using the errorElement prop in your route definition. This allows you to display an error message or a fallback UI.