代碼如下：
const getUrl = (suffix: string) => {
return baseUrl + suffix;
};
export function isValidKey(key: string | number | symbol, object: object): key is keyof typeof object {
return key in object;
}
const fetchRes = async (type: string, url: string, params: {}) => {
url = getUrl(url);
let headers = new Headers();
const token = localStorage.getItem('token');
if (token && token !== '') {
headers.set('Access-Token', token);
}
let requestConfig: RequestInit = {
method: type,
headers,
};
if (type == 'get') {
let dataStr = '';
Object.keys(params).forEach((key) => {
if (isValidKey(key, params)) {
dataStr += key + '=' + params[key] + '&';
}
});
if (dataStr !== '') {
dataStr = dataStr.substr(0, dataStr.lastIndexOf('&'));
url = url + '?' + dataStr;
}
}
if (type == 'post') {
Object.defineProperty(requestConfig, 'body', {
value: JSON.stringify(params),
});
Object.defineProperty(requestConfig.headers, 'Content-Length', {
value: JSON.stringify(params).length,
});
}
try {
const response = await fetch(url, requestConfig);
// console.log(response);
const responseJson = response.json();
const token = response.headers.get('Refresh-Token');
if (token && token !== '') {
localStorage.setItem('token', response.headers.get('Refresh-Token') || '');
}
return responseJson;
} catch (error) {
throw error as Error;
}
};
export { fetchRes };
具體使用：
async function register(params: IRegister): Promise<IRegisterResponse> {
return fetchRes('post', '/signup', params);
}
