follow
/
service-visit


			
				
					
						
						
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							'use strict';

const assert = require('assert');
const _ = require('lodash');
const Controller = require('egg').Controller;

/**
 * 微信支付
 */
class WxPayController extends Controller {
  /**
   * 微信支付取得sign等参数
   */
  async wxpaysign() {
    const { orderno, money, content, openid } = this.ctx.request.body;
    assert(orderno, 'orderno不能为空');
    assert(openid, 'openid不能为空');
    assert(money, 'money不能为空');
    const { wxapi } = this.app.config;
    const mch_id = wxapi.mchid;
    const nonce_str = await this.service.wxpay.createNonceStr();
    const timestamp = await this.service.wxpay.createTimeStamp();
    const body = content;
    const out_trade_no = orderno;
    const total_fee = await this.service.wxpay.getmoney(money);
    const spbill_create_ip = this.ctx.ip;
    const notify_url = wxapi.wxurl;
    const trade_type = 'JSAPI';
    const sign = await this.service.wxpay.paysignjsapi(wxapi.appid, body, mch_id, nonce_str, notify_url, out_trade_no, spbill_create_ip, total_fee, trade_type, wxapi.mchkey, openid);
    let formData = '<xml>';
    formData += '<appid>' + wxapi.appid + '</appid>'; // appid
    formData += '<body><![CDATA[' + body + ']]></body>';
    formData += '<mch_id>' + mch_id + '</mch_id>'; // 商户号
    formData += '<nonce_str>' + nonce_str + '</nonce_str>'; // 随机字符串，不长于32位。
    formData += '<notify_url>' + notify_url + '</notify_url>';
    formData += '<out_trade_no>' + out_trade_no + '</out_trade_no>';
    formData += '<spbill_create_ip>' + spbill_create_ip + '</spbill_create_ip>';
    formData += '<total_fee>' + total_fee + '</total_fee>';
    formData += '<trade_type>' + trade_type + '</trade_type>';
    formData += '<sign>' + sign + '</sign>';
    formData += '<openid>' + openid + '</openid>';
    formData += '</xml>';

    const payurl = wxapi.payurl;
    const paydata = await this.ctx.curl(payurl, {
      method: 'post',
      data: formData,
    });
    const prepay_id = await this.service.wxpay.getXMLNodeValue(paydata.data.toString('UTF-8'));
    // 将预支付订单和其他信息一起签名后返回给前端
    const finalsign = await this.service.wxpay.paysignjsapifinal(wxapi.appid, mch_id, prepay_id, nonce_str, timestamp, wxapi.mchkey);
    const res = { appId: wxapi.appid, partnerId: wxapi.mchid, prepayId: prepay_id, nonceStr: nonce_str, timeStamp: timestamp, package: 'prepay_id=' + prepay_id, sign: finalsign };
    this.ctx.ok({ data: res });
  }

  async wxpaysignback() {
    const { ctx } = this;
    ctx.body = 'hi, egg';
  }

}

module.exports = WxPayController;