在react-admin中实现websocket通知

npm install react-admin ra-data-simple-rest

const socket = new WebSocket('ws://your-websocket-url');

socket.onopen = () => {
  console.log('WebSocket连接已建立');
};

socket.onmessage = (event) => {
  const message = JSON.parse(event.data);
  console.log('收到WebSocket消息:', message);
  // 在这里处理收到的消息，例如更新通知状态或显示通知
};

socket.onclose = () => {
  console.log('WebSocket连接已关闭');
};

import { fetchUtils } from 'react-admin';
import { stringify } from 'query-string';

const apiUrl = 'http://your-api-url';
const httpClient = fetchUtils.fetchJson;

const dataProvider = {
  // 其他数据提供程序方法...

  // 自定义方法用于订阅WebSocket通知
  subscribeToWebSocket: (callback) => {
    const socket = new WebSocket('ws://your-websocket-url');

    socket.onmessage = (event) => {
      const message = JSON.parse(event.data);
      callback(message);
    };

    return () => {
      socket.close();
    };
  },
};

export default dataProvider;

import React from 'react';
import { Admin, Resource } from 'react-admin';
import dataProvider from './dataProvider';

const App = () => (
  <Admin dataProvider={dataProvider}>
    {/* 资源和路由配置 */}
  </Admin>
);

export default App;

import React, { useEffect } from 'react';
import { useDataProvider } from 'react-admin';

const NotificationComponent = () => {
  const dataProvider = useDataProvider();

  useEffect(() => {
    const unsubscribe = dataProvider.subscribeToWebSocket((message) => {
      // 处理收到的通知消息
    });

    return () => {
      unsubscribe();
    };
  }, [dataProvider]);

  return (
    // 组件内容
  );
};

export default NotificationComponent;