Export

import { useExport } from "@refinedev/core";
import {
  List,
  ExportButton,
} from "@refinedev/mantine";
import { Table, Pagination } from "@mantine/core";
import { useTable } from "@refinedev/react-table";
import { ColumnDef, flexRender } from "@tanstack/react-table";

const PostList: React.FC = () => {
  const columns = React.useMemo<ColumnDef<IPost>[]>(
    () => [
      {
        id: "id",
        header: "ID",
        accessorKey: "id",
      },
      {
        id: "title",
        header: "Title",
        accessorKey: "title",
      },
    ],
    [],
  );

  const {
    getHeaderGroups,
    getRowModel,
    refineCore: { setCurrent, pageCount, current },
  } = useTable({
    columns,
  });

  const { triggerExport, isLoading: exportLoading } = useExport<IPost>({
    mapData: (item) => {
      return {
        id: item.id,
        post_title: item.title,
      };
    },
    pageSize: 10,
    maxItemCount: 50,
  });

  return (
    <List
      headerButtons={
        <ExportButton loading={exportLoading} onClick={triggerExport} />
      }
    >
      <Table>
        <thead>
          {getHeaderGroups().map((headerGroup) => (
            <tr key={headerGroup.id}>
              {headerGroup.headers.map((header) => (
                <th key={header.id}>
                  {header.isPlaceholder
                    ? null
                    : flexRender(
                        header.column.columnDef.header,
                        header.getContext(),
                      )}
                </th>
              ))}
            </tr>
          ))}
        </thead>
        <tbody>
          {getRowModel().rows.map((row) => (
            <tr key={row.id}>
              {row.getVisibleCells().map((cell) => (
                <td key={cell.id}>
                  {flexRender(cell.column.columnDef.cell, cell.getContext())}
                </td>
              ))}
            </tr>
          ))}
        </tbody>
      </Table>
      <br />
      <Pagination
        position="right"
        total={pageCount}
        page={current}
        onChange={setCurrent}
      />
    </List>
  );
};

interface IPost {
  id: number;
  title: string;
}