90 lines
2.2 KiB
JavaScript
90 lines
2.2 KiB
JavaScript
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/**
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* 通用网络请求工具
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* - 自动 loading / hideLoading
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* - 自动 fail 错误提示
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* - Promise 风格，支持 async/await
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* - code != 200 自动 toast 并 reject
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*/
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const app = getApp()
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// 请求计数，支持并发 loading
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let requestCount = 0
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/**
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* @param {object} opts
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* @param {string} opts.url - API 路径（不含 baseUrl）
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* @param {string} opts.method - GET/POST，默认 GET
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* @param {object} opts.data - 请求参数
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* @param {boolean} opts.loading - 是否显示 loading，默认 true
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* @param {string} opts.loadingText - loading 文案，默认 "加载中..."
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* @param {boolean} opts.showError - 失败时是否自动 toast，默认 true
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* @param {object} opts.header - 自定义 header（会合并默认 header）
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* @returns {Promise<object>} res.data - 响应体 { code, msg, data }
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*/
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function request(opts) {
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const {
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url,
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method = 'GET',
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data = {},
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loading = true,
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loadingText = '加载中...',
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showError = true,
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header = {}
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} = opts
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if (loading) {
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if (requestCount === 0) {
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wx.showLoading({ title: loadingText, mask: true })
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}
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requestCount++
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}
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return new Promise((resolve, reject) => {
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wx.request({
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url: app.globalData.url + url,
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method,
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data,
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header: {
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'content-type': 'application/x-www-form-urlencoded',
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'Authorization': 'Bearer ' + app.getCache('token'),
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...header
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},
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success(res) {
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if (res.data.code === 200) {
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resolve(res.data)
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} else {
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if (showError) {
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wx.showToast({
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title: res.data.msg || '请求失败',
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icon: 'none',
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duration: 2000
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})
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}
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reject(res.data)
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}
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},
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fail(err) {
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if (showError) {
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wx.showToast({
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title: '网络异常，请稍后重试',
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icon: 'none',
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duration: 2000
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})
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}
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reject(err)
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},
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complete() {
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if (loading) {
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requestCount--
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if (requestCount <= 0) {
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requestCount = 0
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wx.hideLoading()
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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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module.exports = { request }
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