yl-app/common/request.js

import { getToken, setToken } from './auth.js'
import { toast } from './common.js'
import config from '../config.js'

const BASE_URL = config.service

const request = config => {
  config.header = config.header || {}
  if (getToken()) {
    config.header['Authorization'] = 'Bearer ' + getToken()
    reqFunc(config)
  } else {
    uni.getUserInfo({ // 获取用户头像并存储
      provider: 'weixin',
      withCredentials: true,
    }).then((userData) => {
      uni.setStorageSync('avatar', userData.userInfo.avatarUrl)
    })
    uni.login({ // 获取用户登录凭证换取openid
      provider: 'weixin',
      success: (loginInfo) => {
        uni.request({
          method: 'POST',
          dataType: 'json',
          timeout: 10000,
          url: BASE_URL + '/auth/wxlogin',
          data: { code: loginInfo.code },
        }).then((response) => {
          if (response.statusCode === 200) {
            const { code, data, msg } = response.data
            if (data && data.openId) {
              setToken(data.token.access_token)
              config.header['Authorization'] = 'Bearer ' + getToken()

              reqFunc(config)
            } else {
              uni.showModal({
                title: '系统提示',
                content: '该微信还未绑定账号，请去绑定',
                showCancel: false,
                success: function(res) {
                  if (res.confirm) {
                    uni.reLaunch({
                      url: '/pages/login/login'
                    })
                  }
                }
              });
            }
          } else {
            toast('系统未知错误,请反馈给管理员')
          }
        })
      }
    })
  }

}

const reqFunc = config => {
  return new Promise((resolve, reject) => {
    uni.request({
      header: config.header,
      method: config.method.toUpperCase() || 'GET',
      dataType: 'json',
      timeout: config.timeout || 10000,
      url: BASE_URL + config.url,
      data: config.data,
    }).then((res) => {
      if (res.statusCode === 200) {
        const { code, msg } = res.data

        if (code !== 200) {
          toast(msg)
          reject(code)
        }

        resolve(res.data)
      } else {
        toast('未知错误，请反馈给管理员')
      }
    }).catch(error => {
      let {
        message
      } = error
      if (message === 'Network Error') {
        message = '后端接口连接异常'
      } else if (message.includes('timeout')) {
        message = '系统接口请求超时'
      } else if (message.includes('Request failed with status code')) {
        message = '系统接口' + message.substr(message.length - 3) + '异常'
      }

      toast(message)
      reject(error)
    })
  })
}

export default request