456 lines
11 KiB
JavaScript
456 lines
11 KiB
JavaScript
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/**
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* Request 1.0.6
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* @Class Request
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* @description luch-request 1.0.6 http请求插件
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* @Author lu-ch
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* @Date 2020-03-17
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* @Email webwork.s@qq.com
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* http://ext.dcloud.net.cn/plugin?id=392
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*/
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import store from '@/store';
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import mHelper from '@/utils/helper';
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export default class Request {
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config = {
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baseUrl: '',
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header: {
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'content-type': 'application/json'
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},
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method: 'GET',
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dataType: 'json',
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// #ifndef MP-ALIPAY || APP-PLUS
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responseType: 'text',
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// #endif
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custom: {},
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// #ifdef MP-ALIPAY
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timeout: 30000,
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// #endif
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// #ifdef APP-PLUS
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sslVerify: true
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// #endif
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};
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/**
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* @property {Function} request 请求拦截器
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* @property {Function} response 响应拦截器
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* @type {{request: Request.interceptor.request, response: Request.interceptor.response}}
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*/
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interceptor = {
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/**
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* @param {Request~requestCallback} cb - 请求之前拦截,接收一个函数（config, cancel）=> {return config}。第一个参数为全局config,第二个参数为函数，调用则取消本次请求。
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*/
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request: cb => {
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if (cb) {
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this.requestBeforeFun = cb;
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}
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},
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/**
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* @param {Request~responseCallback} cb 响应拦截器，对响应数据做点什么
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* @param {Request~responseErrCallback} ecb 响应拦截器，对响应错误做点什么
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*/
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response: (cb, ecb) => {
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if (cb) {
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this.requestComFun = cb;
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}
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if (ecb) {
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this.requestComFail = ecb;
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}
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}
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};
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static posUrl(url) {
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/* 判断url是否为绝对路径 */
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return /(http|https):\/\/([\w.]+\/?)\S*/.test(url);
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}
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static mergeUrl(url, baseUrl, params) {
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let mergeUrl = Request.posUrl(url) ? url : `${baseUrl}${url}`;
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if (Object.keys(params).length !== 0) {
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const paramsH = Request.addQueryString(params);
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mergeUrl += mergeUrl.includes('?') ? `&${paramsH}` : `?${paramsH}`;
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}
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return mergeUrl;
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}
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static addQueryString(params) {
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let paramsData = '';
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Object.keys(params).forEach(function (key) {
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paramsData += key + '=' + encodeURIComponent(params[key]) + '&';
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});
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return paramsData.substring(0, paramsData.length - 1);
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}
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requestBeforeFun(config) {
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return config;
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}
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requestComFun(response) {
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return response;
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}
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requestComFail(response) {
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return response;
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}
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/**
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* 自定义验证器，如果返回true 则进入响应拦截器的响应成功函数(resolve)，否则进入响应拦截器的响应错误函数(reject)
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* @param { Number } statusCode - 请求响应体statusCode（只读）
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* @return { Boolean } 如果为true,则 resolve, 否则 reject
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*/
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validateStatus(statusCode) {
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return statusCode === 200;
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}
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/**
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* @Function
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* @param {Request~setConfigCallback} f - 设置全局默认配置
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*/
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setConfig(f) {
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this.config = f(this.config);
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}
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/**
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* @Function
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* @param {Object} options - 请求配置项
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* @prop {String} options.url - 请求路径
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* @prop {Object} options.data - 请求参数
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* @prop {Object} [options.responseType = config.responseType] [text|arraybuffer] - 响应的数据类型
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* @prop {Object} [options.dataType = config.dataType] - 如果设为 json，会尝试对返回的数据做一次 JSON.parse
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* @prop {Object} [options.header = config.header] - 请求header
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* @prop {Object} [options.method = config.method] - 请求方法
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* @returns {Promise<unknown>}
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*/
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async request(options = {}) {
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options.baseUrl = this.config.baseUrl;
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options.dataType = options.dataType || this.config.dataType;
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// #ifndef MP-ALIPAY || APP-PLUS
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options.responseType = options.responseType || this.config.responseType;
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// #endif
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// #ifdef MP-ALIPAY
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options.timeout = options.timeout || this.config.timeout;
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// #endif
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options.url = options.url || '';
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options.data = options.data || {};
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options.params = options.params || {};
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options.header = options.header || this.config.header;
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options.method = options.method || this.config.method;
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options.custom = {...this.config.custom, ...(options.custom || {})};
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// #ifdef APP-PLUS
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options.sslVerify =
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options.sslVerify === undefined
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? this.config.sslVerify
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: options.sslVerify;
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// #endif
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options.getTask = options.getTask || this.config.getTask;
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return new Promise((resolve, reject) => {
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let next = true;
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const cancel = (t = 'handle cancel', config = options) => {
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const err = {
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errMsg: t,
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config: config
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};
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reject(err);
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next = false;
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};
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const handleRe = {...this.requestBeforeFun(options, cancel)};
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const _config = {...handleRe};
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if (!next) return;
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const requestTask = uni.request({
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url: Request.mergeUrl(_config.url, _config.baseUrl, _config.params),
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data: _config.data,
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header: _config.header,
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method: _config.method,
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// #ifdef MP-ALIPAY
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timeout: _config.timeout,
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// #endif
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dataType: _config.dataType,
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// #ifndef MP-ALIPAY || APP-PLUS
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responseType: _config.responseType,
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// #endif
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// #ifdef APP-PLUS
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sslVerify: _config.sslVerify,
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// #endif
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complete: response => {
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response.config = handleRe;
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if (this.validateStatus(response.statusCode)) {
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// 成功
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response = this.requestComFun(response);
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resolve(response);
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} else {
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if(response.statusCode===401){
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uni.removeStorageSync('accessToken');
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store.commit('logout');
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uni.showModal({
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content: '会话已过期，是否跳转登录页面？',
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success: confirmRes => {
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if (confirmRes.confirm) {
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mHelper.backToLogin();
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throw response.data.message;
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}
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}
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});
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}
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response = this.requestComFail(response);
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reject(response);
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}
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}
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});
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if (handleRe.getTask) {
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handleRe.getTask(requestTask, handleRe);
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}
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});
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}
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get(url, params = {}) {
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const options = {};
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options.params = params;
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return this.request({
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url,
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method: 'GET',
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...options
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});
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}
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post(url, data, options = {}) {
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return this.request({
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url,
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data,
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method: 'POST',
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...options
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});
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}
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// #ifndef MP-ALIPAY
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put(url, data, options = {}) {
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return this.request({
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url,
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data,
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method: 'PUT',
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...options
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});
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}
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// #endif
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// #ifdef APP-PLUS || H5 || MP-WEIXIN || MP-BAIDU
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delete(url, data, options = {}) {
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return this.request({
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url,
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data,
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method: 'DELETE',
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...options
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});
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}
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// #endif
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// #ifdef APP-PLUS || H5 || MP-WEIXIN
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connect(url, data, options = {}) {
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return this.request({
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url,
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data,
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method: 'CONNECT',
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...options
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});
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}
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// #endif
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// #ifdef APP-PLUS || H5 || MP-WEIXIN || MP-BAIDU
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head(url, data, options = {}) {
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return this.request({
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url,
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data,
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method: 'HEAD',
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...options
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});
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}
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// #endif
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// #ifdef APP-PLUS || H5 || MP-WEIXIN || MP-BAIDU
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options(url, data, options = {}) {
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return this.request({
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url,
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data,
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method: 'OPTIONS',
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...options
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});
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}
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// #endif
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// #ifdef APP-PLUS || H5 || MP-WEIXIN
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trace(url, data, options = {}) {
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return this.request({
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url,
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data,
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method: 'TRACE',
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...options
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});
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}
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// #endif
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upload(
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url,
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{
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// #ifdef APP-PLUS
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files,
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// #endif
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// #ifdef MP-ALIPAY
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fileType,
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// #endif
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filePath,
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name,
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header,
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formData = {},
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custom = {},
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params = {},
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getTask
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}
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) {
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return new Promise((resolve, reject) => {
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let next = true;
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const globalHeader = {...this.config.header};
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delete globalHeader['content-type'];
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delete globalHeader['Content-Type'];
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const pubConfig = {
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baseUrl: this.config.baseUrl,
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url,
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// #ifdef MP-ALIPAY
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fileType,
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// #endif
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filePath,
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method: 'UPLOAD',
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name,
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header: header || globalHeader,
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formData,
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params,
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custom: {...this.config.custom, ...custom},
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getTask: getTask || this.config.getTask
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};
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// #ifdef APP-PLUS
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if (files) {
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pubConfig.files = files;
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}
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// #endif
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const cancel = (t = 'handle cancel', config = pubConfig) => {
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const err = {
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errMsg: t,
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config: config
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};
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reject(err);
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next = false;
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};
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const handleRe = {...this.requestBeforeFun(pubConfig, cancel)};
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const _config = {
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url: Request.mergeUrl(handleRe.url, handleRe.baseUrl, handleRe.params),
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// #ifdef MP-ALIPAY
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fileType: handleRe.fileType,
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// #endif
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filePath: handleRe.filePath,
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name: handleRe.name,
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header: handleRe.header,
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formData: handleRe.formData,
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complete: response => {
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response.config = handleRe;
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if (typeof response.data === 'string') {
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response.data = JSON.parse(response.data);
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}
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if (this.validateStatus(response.statusCode)) {
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// 成功
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response = this.requestComFun(response);
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resolve(response);
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} else {
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response = this.requestComFail(response);
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reject(response);
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}
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}
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};
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// #ifdef APP-PLUS
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if (handleRe.files) {
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_config.files = handleRe.files;
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}
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// #endif
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if (!next) return;
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const requestTask = uni.uploadFile(_config);
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if (handleRe.getTask) {
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|
|
handleRe.getTask(requestTask, handleRe);
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
download(url, options = {}) {
|
|||
|
|
return new Promise((resolve, reject) => {
|
|||
|
|
let next = true;
|
|||
|
|
const pubConfig = {
|
|||
|
|
baseUrl: this.config.baseUrl,
|
|||
|
|
url,
|
|||
|
|
method: 'DOWNLOAD',
|
|||
|
|
header: options.header || this.config.header,
|
|||
|
|
params: options.params || {},
|
|||
|
|
custom: {...this.config.custom, ...(options.custom || {})},
|
|||
|
|
getTask: options.getTask || this.config.getTask
|
|||
|
|
};
|
|||
|
|
const cancel = (t = 'handle cancel', config = pubConfig) => {
|
|||
|
|
const err = {
|
|||
|
|
errMsg: t,
|
|||
|
|
config: config
|
|||
|
|
};
|
|||
|
|
reject(err);
|
|||
|
|
next = false;
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
const handleRe = {...this.requestBeforeFun(pubConfig, cancel)};
|
|||
|
|
if (!next) return;
|
|||
|
|
const requestTask = uni.downloadFile({
|
|||
|
|
url: Request.mergeUrl(handleRe.url, handleRe.baseUrl, handleRe.params),
|
|||
|
|
header: handleRe.header,
|
|||
|
|
complete: response => {
|
|||
|
|
response.config = handleRe;
|
|||
|
|
if (this.validateStatus(response.statusCode)) {
|
|||
|
|
// 成功
|
|||
|
|
response = this.requestComFun(response);
|
|||
|
|
resolve(response);
|
|||
|
|
} else {
|
|||
|
|
response = this.requestComFail(response);
|
|||
|
|
reject(response);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
if (handleRe.getTask) {
|
|||
|
|
handleRe.getTask(requestTask, handleRe);
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
/**
|
|||
|
|
* setConfig回调
|
|||
|
|
* @return {Object} - 返回操作后的config
|
|||
|
|
* @callback Request~setConfigCallback
|
|||
|
|
* @param {Object} config - 全局默认config
|
|||
|
|
*/
|
|||
|
|
/**
|
|||
|
|
* 请求拦截器回调
|
|||
|
|
* @return {Object} - 返回操作后的config
|
|||
|
|
* @callback Request~requestCallback
|
|||
|
|
* @param {Object} config - 全局config
|
|||
|
|
* @param {Function} [cancel] - 取消请求钩子，调用会取消本次请求
|
|||
|
|
*/
|
|||
|
|
/**
|
|||
|
|
* 响应拦截器回调
|
|||
|
|
* @return {Object} - 返回操作后的response
|
|||
|
|
* @callback Request~responseCallback
|
|||
|
|
* @param {Object} response - 请求结果 response
|
|||
|
|
*/
|
|||
|
|
/**
|
|||
|
|
* 响应错误拦截器回调
|
|||
|
|
* @return {Object} - 返回操作后的response
|
|||
|
|
* @callback Request~responseErrCallback
|
|||
|
|
* @param {Object} response - 请求结果 response
|
|||
|
|
*/
|