305 lines
		
	
	
		
			9.0 KiB
		
	
	
	
		
			JavaScript
		
	
	
			
		
		
	
	
			305 lines
		
	
	
		
			9.0 KiB
		
	
	
	
		
			JavaScript
		
	
	
| /**
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|  * Shopro-request
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|  * @description api模块管理,loading配置,请求拦截,错误处理
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|  */
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| 
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| import Request from 'luch-request';
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| import { apiPath, baseUrl, tenantId } from '@/sheep/config';
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| import $store from '@/sheep/store';
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| import $platform from '@/sheep/platform';
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| import { showAuthModal } from '@/sheep/hooks/useModal';
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| import AuthUtil from '@/sheep/api/member/auth';
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| import { getTerminal } from '@/sheep/helper/const';
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| 
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| const options = {
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|   // 显示操作成功消息 默认不显示
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|   showSuccess: false,
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|   // 成功提醒 默认使用后端返回值
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|   successMsg: '',
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|   // 显示失败消息 默认显示
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|   showError: true,
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|   // 失败提醒 默认使用后端返回信息
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|   errorMsg: '',
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|   // 显示请求时loading模态框 默认显示
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|   showLoading: true,
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|   // loading提醒文字
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|   loadingMsg: '加载中',
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|   // 需要授权才能请求 默认放开
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|   auth: false,
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|   // ...
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| };
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| 
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| // Loading全局实例
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| let LoadingInstance = {
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|   target: null,
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|   count: 0,
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| };
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| 
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| /**
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|  * 关闭loading
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|  */
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| function closeLoading() {
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|   if (LoadingInstance.count > 0) LoadingInstance.count--;
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|   if (LoadingInstance.count === 0) uni.hideLoading();
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| }
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| 
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| /**
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|  * @description 请求基础配置 可直接使用访问自定义请求
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|  */
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| const http = new Request({
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|   baseURL: baseUrl + apiPath,
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|   timeout: 8000,
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|   method: 'GET',
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|   header: {
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|     Accept: 'text/json',
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|     'Content-Type': 'application/json;charset=UTF-8',
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|     platform: $platform.name,
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|   },
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|   // #ifdef APP-PLUS
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|   sslVerify: false,
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|   // #endif
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|   // #ifdef H5
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|   // 跨域请求时是否携带凭证(cookies)仅H5支持(HBuilderX 2.6.15+)
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|   withCredentials: false,
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|   // #endif
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|   custom: options,
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| });
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| 
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| /**
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|  * @description 请求拦截器
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|  */
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| http.interceptors.request.use(
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|   (config) => {
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|     // 自定义处理【auth 授权】:必须登录的接口,则跳出 AuthModal 登录弹窗
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|     if (config.custom.auth && !$store('user').isLogin) {
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|       showAuthModal();
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|       return Promise.reject();
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|     }
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| 
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|     // 自定义处理【loading 加载中】:如果需要显示 loading,则显示 loading
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|     if (config.custom.showLoading) {
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|       LoadingInstance.count++;
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|       LoadingInstance.count === 1 &&
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|         uni.showLoading({
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|           title: config.custom.loadingMsg,
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|           mask: true,
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|           fail: () => {
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|             uni.hideLoading();
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|           },
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|         });
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|     }
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| 
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|     // 增加 token 令牌、terminal 终端、tenant 租户的请求头
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|     const token = getAccessToken();
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|     if (token) {
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|       config.header['Authorization'] = token;
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|     }
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|     config.header['terminal'] = getTerminal();
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| 
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|     config.header['Accept'] = '*/*';
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|     config.header['tenant-id'] = tenantId;
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|     return config;
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|   },
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|   (error) => {
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|     return Promise.reject(error);
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|   },
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| );
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| 
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| /**
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|  * @description 响应拦截器
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|  */
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| http.interceptors.response.use(
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|   (response) => {
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|     // 约定:如果是 /auth/ 下的 URL 地址,并且返回了 accessToken 说明是登录相关的接口,则自动设置登陆令牌
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|     if (response.config.url.indexOf('/member/auth/') >= 0 && response.data?.data?.accessToken) {
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|       $store('user').setToken(response.data.data.accessToken, response.data.data.refreshToken);
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|     }
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| 
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|     // 自定处理【loading 加载中】:如果需要显示 loading,则关闭 loading
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|     response.config.custom.showLoading && closeLoading();
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| 
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|     // 自定义处理【error 错误提示】:如果需要显示错误提示,则显示错误提示
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|     if (response.data.code !== 0) {
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|       // 特殊:如果 401 错误码,则跳转到登录页 or 刷新令牌
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|       if (response.data.code === 401) {
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|         return refreshToken(response.config);
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|       }
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|       // 特殊:处理分销用户绑定失败的提示
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|       if ((response.data.code + '').includes('1011007')) {
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|         console.error(`分销用户绑定失败,原因:${response.data.msg}`);
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|       } else if (response.config.custom.showError) {
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|         // 错误提示
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|         uni.showToast({
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|           title: response.data.msg || '服务器开小差啦,请稍后再试~',
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|           icon: 'none',
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|           mask: true,
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|         });
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|       }
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|     }
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| 
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|     // 自定义处理【showSuccess 成功提示】:如果需要显示成功提示,则显示成功提示
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|     if (
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|       response.config.custom.showSuccess &&
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|       response.config.custom.successMsg !== '' &&
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|       response.data.code === 0
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|     ) {
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|       uni.showToast({
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|         title: response.config.custom.successMsg,
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|         icon: 'none',
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|       });
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|     }
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| 
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|     // 返回结果:包括 code + data + msg
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|     return Promise.resolve(response.data);
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|   },
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|   (error) => {
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|     const userStore = $store('user');
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|     const isLogin = userStore.isLogin;
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|     let errorMessage = '网络请求出错';
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|     if (error !== undefined) {
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|       switch (error.statusCode) {
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|         case 400:
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|           errorMessage = '请求错误';
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|           break;
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|         case 401:
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|           errorMessage = isLogin ? '您的登陆已过期' : '请先登录';
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|           // 正常情况下,后端不会返回 401 错误,所以这里不处理 handleAuthorized
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|           break;
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|         case 403:
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|           errorMessage = '拒绝访问';
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|           break;
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|         case 404:
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|           errorMessage = '请求出错';
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|           break;
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|         case 408:
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|           errorMessage = '请求超时';
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|           break;
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|         case 429:
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|           errorMessage = '请求频繁, 请稍后再访问';
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|           break;
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|         case 500:
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|           errorMessage = '服务器开小差啦,请稍后再试~';
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|           break;
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|         case 501:
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|           errorMessage = '服务未实现';
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|           break;
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|         case 502:
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|           errorMessage = '网络错误';
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|           break;
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|         case 503:
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|           errorMessage = '服务不可用';
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|           break;
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|         case 504:
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|           errorMessage = '网络超时';
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|           break;
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|         case 505:
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|           errorMessage = 'HTTP 版本不受支持';
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|           break;
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|       }
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|       if (error.errMsg.includes('timeout')) errorMessage = '请求超时';
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|       // #ifdef H5
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|       if (error.errMsg.includes('Network'))
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|         errorMessage = window.navigator.onLine ? '服务器异常' : '请检查您的网络连接';
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|       // #endif
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|     }
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| 
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|     if (error && error.config) {
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|       if (error.config.custom.showError) {
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|         uni.showToast({
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|           title: error.data?.msg || errorMessage,
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|           icon: 'none',
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|           mask: true,
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|         });
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|       }
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|       error.config.custom.showLoading && closeLoading();
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|     }
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| 
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|     return false;
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|   },
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| );
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| 
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| // Axios 无感知刷新令牌,参考 https://www.dashingdog.cn/article/11 与 https://segmentfault.com/a/1190000020210980 实现
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| let requestList = []; // 请求队列
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| let isRefreshToken = false; // 是否正在刷新中
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| const refreshToken = async (config) => {
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|   // 如果当前已经是 refresh-token 的 URL 地址,并且还是 401 错误,说明是刷新令牌失败了,直接返回 Promise.reject(error)
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|   if (config.url.indexOf('/member/auth/refresh-token') >= 0) {
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|     return Promise.reject('error');
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|   }
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| 
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|   // 如果未认证,并且未进行刷新令牌,说明可能是访问令牌过期了
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|   if (!isRefreshToken) {
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|     isRefreshToken = true;
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|     // 1. 如果获取不到刷新令牌,则只能执行登出操作
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|     const refreshToken = getRefreshToken();
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|     if (!refreshToken) {
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|       return handleAuthorized();
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|     }
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|     // 2. 进行刷新访问令牌
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|     try {
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|       const refreshTokenResult = await AuthUtil.refreshToken(refreshToken);
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|       if (refreshTokenResult.code !== 0) {
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|         // 如果刷新不成功,直接抛出 e 触发 2.2 的逻辑
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|         // noinspection ExceptionCaughtLocallyJS
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|         throw new Error('刷新令牌失败');
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|       }
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|       // 2.1 刷新成功,则回放队列的请求 + 当前请求
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|       config.header.Authorization = 'Bearer ' + getAccessToken();
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|       requestList.forEach((cb) => {
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|         cb();
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|       });
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|       requestList = [];
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|       return request(config);
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|     } catch (e) {
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|       // 为什么需要 catch 异常呢?刷新失败时,请求因为 Promise.reject 触发异常。
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|       // 2.2 刷新失败,只回放队列的请求
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|       requestList.forEach((cb) => {
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|         cb();
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|       });
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|       // 提示是否要登出。即不回放当前请求!不然会形成递归
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|       return handleAuthorized();
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|     } finally {
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|       requestList = [];
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|       isRefreshToken = false;
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|     }
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|   } else {
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|     // 添加到队列,等待刷新获取到新的令牌
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|     return new Promise((resolve) => {
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|       requestList.push(() => {
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|         config.header.Authorization = 'Bearer ' + getAccessToken(); // 让每个请求携带自定义token 请根据实际情况自行修改
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|         resolve(request(config));
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|       });
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|     });
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|   }
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| };
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| 
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| /**
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|  * 处理 401 未登录的错误
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|  */
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| const handleAuthorized = () => {
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|   const userStore = $store('user');
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|   userStore.logout(true);
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|   showAuthModal();
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|   // 登录超时
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|   return Promise.reject({
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|     code: 401,
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|     msg: userStore.isLogin ? '您的登陆已过期' : '请先登录',
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|   });
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| };
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| 
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| /** 获得访问令牌 */
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| export const getAccessToken = () => {
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|   return uni.getStorageSync('token');
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| };
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| 
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| /** 获得刷新令牌 */
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| export const getRefreshToken = () => {
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|   return uni.getStorageSync('refresh-token');
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| };
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| 
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| const request = (config) => {
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|   return http.middleware(config);
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| };
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| 
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| export default request;
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