el-upload - :before-upload 中 使用接口方法

beforeAvatarUpload (file) {
      let that = this
      return new Promise((resolve, reject) => {
        // 图片不能大于500k
        const isLt500K = file.size / 1024 / 1024 < 5
        let arr = file.name.split('.')
        let type = arr[arr.length - 1]
        let testmsg = /^(jpeg|png|jpg)$/.test(type)
        let name = file.name
        let nameArr = name.split('.')
        let url = '/person/validateIdNo'
        let param = {
          idNo: nameArr[0] || ''
        }
        // eslint-disable-next-line no-unused-vars
        let isName = false
        AxiosApi(url, {}, 'GET', param).then(res => {
          if (res.status === 200) {
            isName = true
            if (!testmsg) {
              that.addVis = false
              MsgShow('error', '请上传jpeg、jpg、png格式的图片！', 2000)
            }
            if (!isLt500K) {
              this.addVis = false
              MsgShow('error', '上传图片大小不能超过5MB!', 3000)
            }
            this.$forceUpdate()
            if (testmsg && isLt500K) {
              resolve()
            } else {
              // eslint-disable-next-line prefer-promise-reject-errors
              reject()
            }
          } else {
            that.addVis = false
            MsgShow('error', '照片名称需要使用用户的正确格式的证件号码 ！', 2000)
            this.$forceUpdate()
            // eslint-disable-next-line prefer-promise-reject-errors
            reject()
          }
        })
      })
    },