1. Adding List Page

First, let's create our file under the src/pages/blog-posts folder. We will name it list.tsx. Then, we will copy the list page code generated by Inferencer and paste it into the file.

To copy the code and paste it into the file, follow the steps below:

1. Navigate to the localhost:3000/blog-posts in your browser.

2. Click on the "Show Code" button in the bottom right corner of the page.

3. You can see the list page code generated by Inferencer. Click on the "Copy" button to copy the code.

4. Paste the code into the you created, list.tsx file.

You can see the list page code generated by Inferencer below:

Instead of coding the list page component from scratch, Inferencer created the required code base on API response, so that we can customize.

We will go through the list page components and hooks one by one.

• <List/> is a refine component that is used to presentation purposes like showing create button or page title etc.

  Refer to the <List/> documentation for more information →

• <DataGrid/> is a native Material UI component that is used to display the data in a tabular format.

  Refer to the Material UI <DataGrid/> documentation for more information →

• useDataGrid hook, imported from @pankod/refine-mui package, has been developed by using the useTable hook imported from @pankod/refine-core package. So, It provides all the features of the useTable hook.

  It returns the values needed by the <DataGrid/> component in the dataGridProps variable.

  This is the point where the ✨real magic✨ happens!

  useDataGrid hook fetches data from API and wraps them with various helper hooks required for the <DataGrid/> component. Data interaction functions like sorting, filtering, and pagination will be instantly available on the <DataGrid/> with this single line of code.

  Refer to the useDataGrid documentation for more information →

• <EditButton/> and <ShowButton/> are refine components that are used to navigate to the edit and show pages of the record.

  Refer to the <EditButton/> documentation for more information →

  Refer to the <ShowButton/> documentation for more information →

Each blog post includes the category field which has id property. This is a foreign key that points to the categories resource which is different than "blog_post" resource.

There is a title field In the categories resource. To display the category title in the table, we can use the useMany hook provided by refine.

This hook allows us to fetch data for multiple records in a single request by providing the id's of the related records. In this case, we need to provide the id's of the blog posts categories. It is particularly useful when we need to fetch related data for multiple records.

Refer to the useMany documentation for more information →

In this tutorial, each blog post record has a category field as below:

{
  ...
  "category": {
    "id": 1
  }
  ...
},
{
  ...
  "category": {
    "id": 2
  }
  ...
}

We can use the useMany hook to fetch the full category records for each of these blog posts, like this:

import { useMany } from "@pankod/refine-core";

const { data } = useMany({
  resource: "categories",
  ids: blogPosts.map((blogPost) => blogPost.category.id),
});

This will pass the resource and ids to the dataProvider's getMany function. The dataProvider will then make a single request to the API to fetch the full records for each category related to the blog posts. The resulting data variable will be an array of category records, like this:

[
  {
    id: 1,
    title: "mock category title",
  },
  {
    id: 2,
    title: "another mock category title",
  },
];

We can then use this data array to display the title of each category in the table.

Now that we have created the list page, we need to add it to the App.tsx file.

1. Open src/App.tsx file on your editor.

2. Import the created BlogPostList component.

3. Replace the MuiInferencer component with the BlogPostList component.

import { Refine } from "@pankod/refine-core";
import {
  Layout,
  ReadyPage,
  ErrorComponent,
  LightTheme,
  CssBaseline,
  GlobalStyles,
  ThemeProvider,
  RefineSnackbarProvider,
  useNotificationProvider,
} from "@pankod/refine-mui";
import routerProvider from "@pankod/refine-react-router-v6";
import dataProvider from "@pankod/refine-simple-rest";
import { MuiInferencer } from "@pankod/refine-inferencer/mui";

import { BlogPostList } from "pages/blog-posts/list";

const App: React.FC = () => {
  return (
    <ThemeProvider theme={LightTheme}>
      <CssBaseline />
      <GlobalStyles styles={{ html: { WebkitFontSmoothing: "auto" } }} />
      <RefineSnackbarProvider>
        <Refine
          routerProvider={routerProvider}
          dataProvider={dataProvider("https://api.fake-rest.refine.dev")}
          notificationProvider={useNotificationProvider}
          Layout={Layout}
          ReadyPage={ReadyPage}
          catchAll={<ErrorComponent />}
          resources={[
            {
              name: "blog_posts",
              list: BlogPostList,
              edit: MuiInferencer,
              show: MuiInferencer,
              create: MuiInferencer,
            },
          ]}
        />
      </RefineSnackbarProvider>
    </ThemeProvider>
  );
};
export default App;

Now, we can see the list page in the browser at localhost:3000/blog-posts