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weixin-pay2

v1.1.7

Published

weixin payment

Downloads

5

Readme

weixin-pay

微信支付 for node.js

npm version

Installation

npm install weixin-pay

Usage

创建统一支付订单

var WXPay = require('weixin-pay');

var wxpay = WXPay({
	appid: 'xxxxxxxx',
	mch_id: '1234567890',
	partner_key: 'xxxxxxxxxxxxxxxxx', //微信商户平台API密钥
	pfx: fs.readFileSync('./wxpay_cert.p12'), //微信商户平台证书
});

wxpay.createUnifiedOrder({
	body: '扫码支付测试',
	out_trade_no: '20140703'+Math.random().toString().substr(2, 10),
	total_fee: 1,
	spbill_create_ip: '192.168.2.210',
	notify_url: 'http://wxpay_notify_url',
	trade_type: 'NATIVE',
	product_id: '1234567890'
}, function(err, result){
	console.log(result);
});

查询订单

// 通过微信订单号查
wxpay.queryOrder({ transaction_id:"xxxxxx" }, function(err, order){
	console.log(order);
});

// 通过商户订单号查
wxpay.queryOrder({ out_trade_no:"xxxxxx" }, function(err, order){
	console.log(order);
});

关闭订单

wxpay.closeOrder({ out_trade_no:"xxxxxx"}, function(err, result){
	console.log(result);
});

原生支付 (NATIVE)

模式一

提供一个生成支付二维码链接的函数,把url生成二维码给用户扫。

var url = wxpay.createMerchantPrepayUrl({ product_id: '123456' });

商户后台收到微信的回调之后,调用 createUnifiedOrder() 生成预支付交易单,将结果的XML数据返回给微信。

什么是模式一?

模式二

直接调用 createUnifiedOrder() 函数生成预支付交易单,将结果中的 code_url 生成二维码给用户扫。

什么是模式二?

公众号支付 (JS API)

生成JS API支付参数,发给页面

wxpay.getBrandWCPayRequestParams({
	openid: '微信用户 openid',
	body: '公众号支付测试',
    detail: '公众号支付测试',
	out_trade_no: '20150331'+Math.random().toString().substr(2, 10),
	total_fee: 1,
	spbill_create_ip: '192.168.2.210',
	notify_url: 'http://wxpay_notify_url'
}, function(err, result){
	// in express
    res.render('wxpay/jsapi', { payargs:result })
});

网页调用参数(以ejs为例)

WeixinJSBridge.invoke(
	"getBrandWCPayRequest", <%-JSON.stringify(payargs)%>, function(res){
		if(res.err_msg == "get_brand_wcpay_request:ok" ) {
    		// success
    	}
});

中间件

商户服务端处理微信的回调(express为例)

var router = express.Router();
var wxpay = require('weixin-pay');

// 原生支付回调
router.use('/wxpay/native/callback', wxpay.useWXCallback(function(msg, req, res, next){
	// msg: 微信回调发送的数据
}));

// 支付结果异步通知
router.use('/wxpay/notify', wxpay.useWXCallback(function(msg, req, res, next){
	// 处理商户业务逻辑
    
    // res.success() 向微信返回处理成功信息,res.fail()返回失败信息。
    res.success();
}));