wxpay-jsapi

微信支付，wxpay, jsapi,微信js-sdk 支付koa和express

如何使用？

   var WxPay = require("wxpay-jsapi");
   var opt = {
      appid: "appid",
      mch_id: "mch_id",
      key: "key",
      notify_url: "notify_url"
   };
   var wxpay = new WxPay(opt);
   var attach = "这里是需要传送得数据";
   var body = "这里是描述";
   var openid = "openid";
   var bookingNo = "20150806125346";//订单号长度有限制具体看微信API文档
   var total_fee = 10;//0.1元
	 var ip = '127.0.0.1';
   wxpay.order(attach, body, openid, bookingNo, total_fee, ip).then(function(data){
      res.render('wxpay', {args: data});
   });

页面调用例子

		<script type="text/javascript">
        var onBridgeReady = function() {
         WeixinJSBridge.invoke('getBrandWCPayRequest', {
         	"appId": "<%= args.appId %>",
         	"timeStamp": "<%= args.timeStamp %>",
         	"nonceStr": "<%= args.nonceStr %>",
         	"package": "prepay_id=<%= args.package %>",
         	"signType": "MD5",
         	"paySign": "<%= args.paySign %>",
         },
         function(res) {
           if (res.err_msg == "get_brand_wcpay_request:ok") {
				alert(res.err_msg); //成功页面
           } else if (res.err_msg == "get_brand_wcpay_request:cancel") {
				alert(res.err_msg); //成功页面
           } else if (res.err_msg == "get_brand_wcpay_request:fail") {
              alert(res.err_msg); //成功页面
           } else {
             
           }
         });
        };
        if (document.addEventListener) {
         document.addEventListener("WeixinJSBridgeReady", onBridgeReady, true);
        } else {
         document.attachEvent("onWeixinJSBridgeReady", onBridgeReady);
        }
   //      $(function(){
			// addCharge();
   //      });
		</script>