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240
src/utils/request.ts
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240
src/utils/request.ts
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import type { AxiosRequestConfig, Method } from 'axios'
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import axios from 'axios'
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import { ElLoading, ElNotification, type LoadingOptions } from 'element-plus'
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import { refreshToken } from '@/api/user-boot/user'
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import router from '@/router/index'
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import { useAdminInfo } from '@/stores/adminInfo'
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window.requests = []
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window.tokenRefreshing = false
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const pendingMap = new Map()
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const loadingInstance: 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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* 根据运行环境获取基础请求URL
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*/
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export const getUrl = (): string => {
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return '/api'
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}
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/**
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* 创建`Axios`
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* 默认开启`reductDataFormat(简洁响应)`,返回类型为`ApiPromise`
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* 关闭`reductDataFormat`,返回类型则为`AxiosPromise`
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*/
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function createAxios<Data = any, T = ApiPromise<Data>>(
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axiosConfig: AxiosRequestConfig,
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options: Options = {},
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loading: LoadingOptions = {}
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): T {
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const adminInfo = useAdminInfo()
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const Axios = axios.create({
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baseURL: getUrl(),
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timeout: 1000 * 60 * 5,
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headers: {},
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responseType: 'json'
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})
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options = Object.assign(
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{
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CancelDuplicateRequest: true, // 是否开启取消重复请求, 默认为 true
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loading: false, // 是否开启loading层效果, 默认为false
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reductDataFormat: true, // 是否开启简洁的数据结构响应, 默认为true
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showErrorMessage: true, // 是否开启接口错误信息展示,默认为true
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showCodeMessage: true, // 是否开启code不为1时的信息提示, 默认为true
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showSuccessMessage: false, // 是否开启code为1时的信息提示, 默认为false
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anotherToken: '' // 当前请求使用另外的用户token
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},
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options
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)
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// 请求拦截
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Axios.interceptors.request.use(
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config => {
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removePending(config)
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options.CancelDuplicateRequest && addPending(config)
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// 创建loading实例
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if (options.loading) {
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loadingInstance.count++
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if (loadingInstance.count === 1) {
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loadingInstance.target = ElLoading.service(loading)
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}
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}
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// 自动携带token
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if (config.headers) {
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const token = adminInfo.getToken()
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if (token) {
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;(config.headers as anyObj).Authorization = token
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} else {
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config.headers.Authorization = 'Basic bmpjbnRlc3Q6bmpjbnBxcw=='
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}
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}
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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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// 响应拦截
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Axios.interceptors.response.use(
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response => {
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removePending(response.config)
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options.loading && closeLoading(options) // 关闭loading
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if (
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response.data.code === 'A0000' ||
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response.data.type === 'application/json' ||
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response.data.type === 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
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) {
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return options.reductDataFormat ? response.data : response
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} else if (response.data.code == 'A0202') {
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if (!window.tokenRefreshing) {
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window.tokenRefreshing = true
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return refreshToken()
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.then(res => {
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adminInfo.setToken(res.data.token, 'auth')
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response.headers.Authorization = `${res.data.token}`
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window.requests.forEach(cb => cb(res.data.token))
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window.requests = []
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return Axios(response.config)
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})
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.catch(err => {
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adminInfo.removeToken()
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router.push({ name: 'login' })
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return Promise.reject(err)
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})
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.finally(() => {
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window.tokenRefreshing = false
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})
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} else {
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return new Promise(resolve => {
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// 用函数形式将 resolve 存入，等待刷新后再执行
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window.requests.push((token: string) => {
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response.headers.Authorization = `${token}`
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resolve(Axios(response.config))
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})
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})
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}
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} else if (response.data.code == 'A0024') {
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// 登录失效
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ElNotification({
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type: 'error',
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message: response.data.message
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})
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adminInfo.removeToken()
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router.push({ name: 'login' })
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return Promise.reject(response.data)
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} else {
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if (options.showCodeMessage) {
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ElNotification({
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type: 'error',
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message: response.data.message || '未知错误'
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})
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}
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return Promise.reject(response.data)
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}
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},
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error => {
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error.config && removePending(error.config)
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options.loading && closeLoading(options) // 关闭loading
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return Promise.reject(error) // 错误继续返回给到具体页面
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}
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)
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return Axios(axiosConfig) as T
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}
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export default createAxios
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/**
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* 关闭Loading层实例
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*/
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function closeLoading(options: Options) {
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if (options.loading && loadingInstance.count > 0) loadingInstance.count--
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if (loadingInstance.count === 0) {
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loadingInstance.target.close()
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loadingInstance.target = null
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}
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}
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/**
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* 储存每个请求的唯一cancel回调, 以此为标识
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*/
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function addPending(config: AxiosRequestConfig) {
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const pendingKey = getPendingKey(config)
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config.cancelToken =
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config.cancelToken ||
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new axios.CancelToken(cancel => {
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if (!pendingMap.has(pendingKey)) {
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pendingMap.set(pendingKey, cancel)
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}
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})
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}
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/**
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* 删除重复的请求
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*/
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function removePending(config: AxiosRequestConfig) {
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const pendingKey = getPendingKey(config)
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if (pendingMap.has(pendingKey)) {
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const cancelToken = pendingMap.get(pendingKey)
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cancelToken(pendingKey)
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pendingMap.delete(pendingKey)
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}
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}
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/**
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* 生成每个请求的唯一key
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*/
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function getPendingKey(config: AxiosRequestConfig) {
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let { data } = config
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const { url, method, params, headers } = config
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if (typeof data === 'string') data = JSON.parse(data) // response里面返回的config.data是个字符串对象
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return [
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url,
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method,
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headers && (headers as anyObj).Authorization ? (headers as anyObj).Authorization : '',
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headers && (headers as anyObj)['ba-user-token'] ? (headers as anyObj)['ba-user-token'] : '',
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JSON.stringify(params),
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JSON.stringify(data)
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].join('&')
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}
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/**
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* 根据请求方法组装请求数据/参数
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*/
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export function requestPayload(method: Method, data: anyObj) {
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if (method == 'GET') {
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return {
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params: data
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}
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} else if (method == 'POST') {
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return {
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data: data
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}
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}
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}
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interface LoadingInstance {
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target: any
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count: number
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}
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interface Options {
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// 是否开启取消重复请求, 默认为 true
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CancelDuplicateRequest?: boolean
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// 是否开启loading层效果, 默认为false
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loading?: boolean
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// 是否开启简洁的数据结构响应, 默认为true
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reductDataFormat?: boolean
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// 是否开启code不为A0000时的信息提示, 默认为true
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showCodeMessage?: boolean
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// 是否开启code为0时的信息提示, 默认为false
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showSuccessMessage?: boolean
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// 当前请求使用另外的用户token
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anotherToken?: string
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}
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