wx_lite.js

/**
 * Created by yulitao on 2016/12/29.
 */
var stash = require('../stash');
var callbacks = require('../callbacks');
var hasOwn = {}.hasOwnProperty;
/*global wx*/
module.exports = {

  PINGPP_NOTIFY_URL_BASE: 'https://notify.pingxx.com/notify',

  handleCharge: function (charge) {
    var credential = charge.credential[charge.channel];
    var fields = [
      'appId', 'timeStamp', 'nonceStr', 'package', 'signType', 'paySign'
    ];
    for (var k = 0; k < fields.length; k++) {
      if (!hasOwn.call(credential, fields[k])) {
        callbacks.innerCallback('fail',
          callbacks.error('invalid_credential', 'missing_field_' + fields[k]));
        return;
      }
    }
    stash.jsApiParameters = credential;
    this.callpay();
  },

  wxLiteEnabled: function () {
    return typeof wx !== 'undefined' && wx.requestPayment;
  },

  //微信小程序支付
  callpay: function () {
    if (!this.wxLiteEnabled()) {
      console.log('请在微信小程序中打开');
      return;
    }
    var wx_lite = stash.jsApiParameters;
    delete wx_lite.appId;
    wx_lite.complete = function (res) {
      //支付成功
      if (res.errMsg === 'requestPayment:ok') {
        callbacks.innerCallback('success');
      }
      //取消支付
      if (res.errMsg === 'requestPayment:cancel'
        || res.errMsg === 'requestPayment:fail cancel') {
        callbacks.innerCallback('cancel', callbacks.error('用户取消支付'));
      }
      //支付验证签名失败
      if (res.err_code !== 'undefined' && res.err_desc !== 'undefined') {
        callbacks.innerCallback('fail', callbacks.error(res.err_desc, res));
      }
    };
    wx.requestPayment(wx_lite);
  },

  runTestMode: function (charge) {
    var path = '/charges/' + charge.id;
    wx.request({
      url: this.PINGPP_NOTIFY_URL_BASE + path + '?livemode=false',
      success: function(res) {
        if (res.data == 'success') {
          callbacks.innerCallback('success');
        } else {
          callbacks.innerCallback('fail',
            callbacks.error('testmode_notify_fail'));
        }
      },
      fail:function() {
        callbacks.innerCallback('fail', callbacks.error('network_err'));
      }
    });
  }
};