将数组传递给组件

Question

我是React的新手，需要在以下方面寻求帮助..

我有一个组件，它接受数组列表来渲染组件，并需要一个单独的组件来操作该数组

渲染的组件：

export function DashboardContent() {
    return (
        <Grid>
            <Grid.Col sm={12} md={12} lg={4}>
                <ProfileCard />
            </Grid.Col>
            <Grid.Col sm={12} md={12} lg={8}>
                <Flex direction="column" h="100%" justify="space-between" gap="md">
                    <WelcomeCard />
                    <StatsGroup data={mockData} />
                </Flex>
            </Grid.Col>
            <Grid.Col sm={12} md={12} lg={8}>
                <BalanceCard />
            </Grid.Col>
            <Grid.Col sm={12} md={12} lg={4}>
                <OverviewCard />
            </Grid.Col>
        </Grid>
    );
}

mockData是我需要通过API调用传递数组的地方 目前传递以下模拟数据：

export const mockData = [
    {
        title: 'ABC',
        value: '$7,999',
        diff: 50,
    },
    {
        title: 'XXX',
        value: '$4,00',
        diff: -13,
    },
    {
        title: 'Null',
        value: '$ 0.745',
        diff: 1,
    },
];

需要一个新的组件js的帮助，可以独立管理并进行API调用，并以模拟中描述的格式传递数组。

一直在尝试以下代码，但没有成功，任何帮助将不胜感激

import React, { useEffect, useState } from 'react';
import axios from 'axios';

interface CustomArray {
    title: string;
    value: string;
    diff: number;
}
const token =
    'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx';

const axiosInstance = axios.create({
    headers: {
        Authorization: `Bearer ${token}`,
    },
});
const Usage = () => {
    const [users, setUsers] = useState([]);

    const fetchUsers = async () => {
        const response = await axios.get(
            'https://myrestservices.com/api/v2/organizations/AXZ/usage'
        );
        const usersData = response.data;

        const usersArray = usersData.map(user => ({
            title: user.title,
            value: user.value,
            diff: user.diff,
        }));

        setUsers(usersArray);
    };

    useEffect(() => {
        fetchUsers();
    }, []);

    return users;
};

export default Usage;

Answer 1

需要做的第一件事是将Usage的实现更改为类似于react自定义hook的方式

const useApiData = (apiUrl) => {
  const [data, setData] = useState([]);

  const fetchData = async () => {
    try {
      const response = await axios.get(apiUrl);
      const responseData = response.data;

      const dataArray = responseData.map(item => ({
        title: item.title,
        value: item.value,
        diff: item.diff,
      }));

      setData(dataArray);
    } catch (error) {
      console.error('Error fetching data:', error);
    }
  };

  useEffect(() => {
    fetchData();
  }, [apiUrl]);

  return data;
};

export default useApiData;

然后在StatsGroup组件内部进行以下更改以渲染这些数据。

const StatsGroup = ({ apiData }) => {
  return (
    <div>
      {apiData.map(item => (
        <div key={item.title}>
          <p>Title: {item.title}</p>
          <p>Value: {item.value}</p>
          <p>Diff: {item.diff}</p>
        </div>
      ))}
    </div>
  );
};

export default StatsGroup;

因此，要在自定义hook和StatGroup组件之间建立链接，首先调用自定义hook，然后在获取结果后将数据传递给StatGroup组件的prop，如下所示。

const DashboardContent = () => {
  // 使用您想要从中获取数据的任何API URL
  const apiUrl = 'https://myrestservices.com/api/v2/organizations/AXZ/usage';
  
  const apiData = useApiData(apiUrl);

  return (
    <div>
      <h1>Stats Group</h1>
      <StatsGroup apiData={apiData} />
    </div>
  );
};

export default DashboardContent;