npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

wechat-pay-samicelus

v0.0.19

Published

wechat payment api for document v3.3.5

Downloads

37

Readme

微信支付 for Nodejs

初始化

var Payment = require('wechat-pay').Payment;
var initConfig = {
  partnerKey: "<partnerkey>",
  appId: "<appid>",
  mchId: "<mchid>",
  notifyUrl: "<notifyurl>",
  pfx: fs.readFileSync("<location-of-your-apiclient-cert.p12>")
};
var payment = new Payment(initConfig);

所有参数都不是必须的,不过这样配置最省事。实际调用时候的参数若有同名会覆盖。

付个钱

var order = {
  body: '吮指原味鸡 * 1',
  attach: '{"部位":"三角"}',
  out_trade_no: 'kfc' + (+new Date),
  total_fee: 10 * 100,
  spbill_create_ip: req.ip,
  openid: req.user.openid,
  trade_type: 'JSAPI'
};

payment.getBrandWCPayRequestParams(order, function(err, payargs){
  res.json(payargs);
});

// 也可以使用`async/await`形式
// let payargs = await payment.getBrandWCPayRequestParams(order)

注:

  1. 页面的路径需要位于支付授权目录
  2. 由于每次呼出支付界面,无论用户是否支付成功,out_trade_no 都会失效(OUT_TRADE_NO_USED),所以这里使用timestamp保证每次的id不同。业务逻辑中应该自行维护之

前端通过

WeixinJSBridge.invoke('getBrandWCPayRequest', payargs, function(res){
  if(res.err_msg == "get_brand_wcpay_request:ok"){
    alert("支付成功");
    // 这里可以跳转到订单完成页面向用户展示
  }else{
    alert("支付失败,请重试");
  }
});

来呼出微信的支付界面

接收微信付款确认请求

var middleware = require('wechat-pay').middleware;
app.use('<notifyUrl>', middleware(initConfig).getNotify().done(function(message, req, res, next) {
  var openid = message.openid;
  var order_id = message.out_trade_no;
  var attach = {};
  try{
   attach = JSON.parse(message.attach);
  }catch(e){}

  /**
   * 查询订单,在自己系统里把订单标为已处理
   * 如果订单之前已经处理过了直接返回成功
   */
  res.reply('success');

  /**
   * 有错误返回错误,不然微信会在一段时间里以一定频次请求你
   * res.reply(new Error('...'))
   */
}));

退个款

payment.refund({
  out_trade_no: "kfc001",
  out_refund_no: 'kfc001_refund',
  total_fee: 10 * 100,
  refund_fee: 10 * 100
}, function(err, result){
  /**
   * 微信收到正确的请求后会给用户退款提醒
   * 这里一般不用处理,有需要的话有err的时候记录一下以便排查
   */
});

接收退款确认请求

var middleware = require('wechat-pay').middleware;
app.use('<notifyUrl>', middleware(initConfig).getRefundNotify().done(function(message, req, res, next) {
  var openid = message.openid;
  var refund_order_id = message.out_refund_no;
  var order_id = message.out_trade_no;
  var attach = {};
  try{
   attach = JSON.parse(message.attach);
  }catch(e){}

  /**
   * 查询订单,在自己系统里把订单标为已处理
   * 如果订单之前已经处理过了直接返回成功
   */
  res.reply('success');

  /**
   * 有错误返回错误,不然微信会在一段时间里以一定频次请求你
   * res.reply(new Error('...'))
   */
}));

发红包

payment.sendRedPacket({
  mch_billno: 'kfc002',
  send_name: '肯德基',
  re_openid: '',
  total_amount: 10 * 100,
  total_num: 1,
  wishing: '祝多多吃鸡',
  client_ip: '',
  act_name: '吃鸡大奖赛',
  remark: '记得吐骨头',
  scene_id: 'PRODUCT_1'
}, (err, result) => {
  /**
   * 微信收到正确的请求后会给用户发红包,用户不必关注公众号也能收到。
   * 红包没有通知回调,有需要的话标记订单状态,和有err的时候记录一下以便排查
   */
  });
});

查询红包状态

payment.redPacketQuery({
  mch_billno: 'kfc002'
}, (err, result) => {
  /**
   * 根据状态相应处理订单
   */
});

企业付款

payment.transfers({
  partner_trade_no: 'kfc003',
  openid: '',
  check_name: 'NO_CHECK',
  amount: 10 * 100,
  desc: '',
  spbill_create_ip: ''
}, (err, result) => {
  // 根据微信文档,当返回错误码为“SYSTEMERROR”时,一定要使用原单号重试,否则可能造成重复支付等资金风险。
});

查询历史订单

payment.downloadBill({
  bill_date: "20140913",
  bill_type: "ALL"
}, function(err, data){
  // 账单列表
  var list = data.list;
  // 账单统计信息
  var stat = data.stat;
});

错误处理

在回调的Error上的以name做了区分,有需要可以拿来做判断

  • ProtocolError 协议错误,看看有没有必须要传的参数没传
  • BusinessError 业务错误,可以从返回的data里面看看错误细节