在TypeScript和React环境下,可以通过创建一个自定义的React Hook来封装AJAX请求,并实现刷新Token的功能。以下是一个简单的示例:
import React, { useState, useEffect } from 'react';
type AjaxResponse<T> = {
data: T;
error: boolean;
message: string;
};
type FetchFunction<T> = (url: string, options?: RequestInit) => Promise<AjaxResponse<T>>;
const useAjax: FetchFunction<any> = async <T>(url: string, options?: RequestInit) => {
const [response, setResponse] = useState<AjaxResponse<T>>({
data: null,
error: true,
message: '',
});
useEffect(() => {
const fetchData = async () => {
try {
const res = await fetch(url, options);
const json = await res.json();
setResponse({
data: json,
error: false,
message: '',
});
} catch (error) {
setResponse(prevResponse => ({
...prevResponse,
error: true,
message: error.toString(),
}));
}
};
fetchData();
}, [url, options]);
return response;
};
export default useAjax;
使用自定义Hook:
import React from 'react';
import useAjax from './useAjax';
const MyComponent: React.FC = () => {
const { data, error, message } = useAjax<any>('https://api.example.com/data');
if (error) {
return <div>Error: {message}</div>;
}
return <div>Data: {JSON.stringify(data)}</div>;
};
export default MyComponent;
在这个例子中,useAjax
Hook 封装了AJAX请求,并在请求失败时提供了一种简单的刷新Token机制。如果需要更复杂的逻辑,可以在useAjax
中添加额外的逻辑来处理Token的刷新,并根据需要重新发起请求。