import axios, { AxiosInstance, AxiosError, AxiosRequestConfig, InternalAxiosRequestConfig, AxiosResponse } from "axios";
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import { tryHideFullScreenLoading } from "@/components/Loading/fullScreen";
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// showFullScreenLoading
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import { LOGIN_URL } from "@/config";
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import { ElMessage } from "element-plus";
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import { ResultData } from "@/api/interface";
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import { ResultEnum } from "@/enums/httpEnum";
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import { checkStatus } from "./helper/checkStatus";
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import { AxiosCanceler } from "./helper/axiosCancel";
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import { useUserStore } from "@/stores/modules/user";
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import router from "@/routers";
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export interface CustomAxiosRequestConfig extends InternalAxiosRequestConfig {
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loading?: boolean;
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cancel?: boolean;
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}
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const config = {
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// 默认地址请求地址,可在 .env.** 文件中修改
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baseURL: import.meta.env.VITE_API_URL as string,
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// 设置超时时间
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timeout: ResultEnum.TIMEOUT as number,
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// 跨域时候允许携带凭证
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withCredentials: true
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};
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let hasShownLoginError = false;
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const axiosCanceler = new AxiosCanceler();
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class RequestHttp {
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service: AxiosInstance;
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public constructor(config: AxiosRequestConfig) {
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// instantiation
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this.service = axios.create(config);
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/**
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* @description 请求拦截器
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* 客户端发送请求 -> [请求拦截器] -> 服务器
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* token校验(JWT) : 接受服务器返回的 token,存储到 vuex/pinia/本地储存当中
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*/
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this.service.interceptors.request.use(
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(config: CustomAxiosRequestConfig) => {
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const userStore = useUserStore();
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// 重复请求不需要取消,在 api 服务中通过指定的第三个参数: { cancel: false } 来控制
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config.cancel ??= true;
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config.cancel && axiosCanceler.addPending(config);
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// 当前请求不需要显示 loading,在 api 服务中通过指定的第三个参数: { loading: false } 来控制
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// config.loading ??= true;
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// config.loading && showFullScreenLoading();
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if (config.headers && typeof config.headers.set === "function") {
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config.headers.set("satoken", userStore.token);
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}
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return config;
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},
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(error: AxiosError) => {
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return Promise.reject(error);
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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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* 服务器返回信息 -> [拦截统一处理] -> 客户端JS获取到信息
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*/
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this.service.interceptors.response.use(
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(response: AxiosResponse & { config: CustomAxiosRequestConfig }) => {
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const { data, config } = response;
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const userStore = useUserStore();
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axiosCanceler.removePending(config);
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config.loading && tryHideFullScreenLoading();
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// 登录失效
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if (data.msg == ResultEnum.OVERDUE) {
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axiosCanceler.removeAllPending();
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userStore.setToken("");
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router.replace(LOGIN_URL);
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// 只在第一次触发时显示错误
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if (!hasShownLoginError) {
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ElMessage.error(data.msg);
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hasShownLoginError = true;
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}
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return Promise.reject(data);
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}
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// 全局错误信息拦截(防止下载文件的时候返回数据流,没有 code 直接报错)
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if (data.code && data.code !== ResultEnum.SUCCESS) {
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ElMessage.error(data.msg);
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return Promise.reject(data);
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}
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// 成功请求(在页面上除非特殊情况,否则不用处理失败逻辑)
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return data;
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},
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async (error: AxiosError) => {
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const { response } = error;
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tryHideFullScreenLoading();
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// 请求超时 && 网络错误单独判断,没有 response
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if (error.message.indexOf("timeout") !== -1) ElMessage.error("请求超时!请您稍后重试");
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if (error.message.indexOf("Network Error") !== -1) ElMessage.error("网络错误!请您稍后重试");
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// 根据服务器响应的错误状态码,做不同的处理
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if (response) checkStatus(response.status);
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// 服务器结果都没有返回(可能服务器错误可能客户端断网),断网处理:可以跳转到断网页面
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if (!window.navigator.onLine) router.replace("/500");
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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 常用请求方法封装
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*/
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get<T>(url: string, params?: object, _object = {}): Promise<ResultData<T>> {
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return this.service.get(url, { params, ..._object });
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}
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post<T>(url: string, params?: object | string, _object = {}): Promise<ResultData<T>> {
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return this.service.post(url, params, _object);
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}
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put<T>(url: string, params?: object, _object = {}): Promise<ResultData<T>> {
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return this.service.put(url, params, _object);
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}
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delete<T>(url: string, params?: any, _object = {}): Promise<ResultData<T>> {
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return this.service.delete(url, { params, ..._object });
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}
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download(url: string, params?: object, _object = {}): Promise<BlobPart> {
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return this.service.post(url, params, { ..._object, responseType: "blob" });
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}
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}
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export default new RequestHttp(config);
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