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    wechat-payment-node

微信支付 for nodejs,创建统一支付订单,查询订单,关闭订单,申请退款,查询退款详情,企业付款,即转账到个人微信钱包,查询企业付款详情 Payment API of Weixin (WeChat) for APP and also JSAPI


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Wechat Payment (Node.js)

Wechat Payment API for Node.js

微信支付 API for Node.js

Please Reference Wechat payment docs carefully before using this package. Wormhole:wechat payment docs, enterprice version (transfers、withdraw)

使用之前一定要读懂微信支付的文档, 传送门:微信支付, 企业付款 (转账、提现)

包含以下API:

  • 创建统一支付订单
  • 查询订单
  • 关闭订单
  • 申请退款
  • 查询退款详情
  • 企业付款,即转账到个人微信钱包
  • 查询企业付款详情

Usage

Initialize

配置,初始化; 在调用其他接口前必须先初始化!

import WechatPayment from 'wechat-payment-node';
let options = {
  appid: 'your app id',
  mch_id: 'your merchant id',
  apiKey: 'your app key (partner key)', //微信商户平台API密钥
  notify_url: 'your notify url',
  trade_type: 'APP', //APP, JSAPI, NATIVE etc.
  pfx: fs.readFileSync('./apiclient_cert.p12'), //微信商户平台证书 (optional,部分API需要使用)
};
let wechatPaymentInstance = new WechatPayment(options);

Create Unified Order

创建统一支付订单, SPEC

let orderData = {
  body: '支付测试', // 商品或支付单简要描述
  out_trade_no: 'order1', // 商户系统内部的订单号,32个字符内、可包含字母
  total_fee: 100,
  spbill_create_ip: '192.168.2.1',
  notify_url: 'http://wxpayment_notify_url',
  trade_type: 'JSAPI'
};

 wechatPaymentInstance.createUnifiedOrder(orderData)
 .then(result=>{
   console.log(result);
 })
 .catch(err=>{
   console.log(err);
 });

result 示例:

{
  return_code: 'SUCCESS',
  return_msg: 'OK',
  appid: 'your app id',
  mch_id: 'your merchantt id',
  nonce_str: 'GPAwjlqZmkl04dCH',
  sign: 'E9970AC7C2F2890BD6CA5C36F78B6921',
  result_code: 'SUCCESS',
  prepay_id: 'wx20160701104002e0af0b0dbf0031984704',
  trade_type: 'JSAPI'
}

WeChat Callbacks

接收微信的回调, 对应上面的notify_url

WechatPayment.wxCallback(fn, apiKey, type)

此方法有三个参数,第一个是匿名函数,第二个是商户partnerKey, 第三个是类型。 目前只支持两种通知,一是支付通知(值为:'payment', 也是默认值),二是退款通知(值为: 'refund')。暂时不支持扫码付款通知。

// 支付结果异步通知
router.use('/wechat/payment/notify', WechatPayment.wxCallback(function(notification, 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();
}), apiKey);

注:此方法是静态方法,直接调用,不用实例化。WechatPayment.wxCallback()

Query Order

查询订单, SPEC

wechatPaymentInstance.queryOrder({
  out_trade_no: 'order1'
})
.then(result=>{
  console.log(result);
})
.catch(err=>{
  console.log(err);
})

or

wechatPaymentInstance.queryOrder({
  transaction_id: '12222'
})
.then(result=>{
  console.log(result);
})
.catch(err=>{
  console.log(err);
})

out_trade_notransaction_id 二选一

result 示例:

{
  return_code: 'SUCCESS',
  return_msg: 'OK',
  appid: 'your app id',
  mch_id: 'your merchant id',
  nonce_str: 'P6IFNTlKWVKtlOH4',
  sign: 'B3348E5BCB4FC7C7C5D1D7445023A9A0',
  result_code: 'SUCCESS',
  out_trade_no: 'ordertest003',
  trade_state: 'NOTPAY',
  trade_state_desc: '订单未支付'
}

Close Order

关闭订单, SPEC

wechatPaymentInstance.closeOrder({
  out_trade_no: 'order1'
})
.then(result=>{
  console.log(result);
})
.catch(err=>{
  console.log(err);
})

result 示例:

{
  return_code: 'SUCCESS',
  return_msg: 'OK',
  appid: 'your wechat id',
  mch_id: 'your merchant id',
  nonce_str: 'qlJrwWF8E0M5tHyh',
  sign: '5E44DB01443506897D8CC7AA1C67BB0F',
  result_code: 'SUCCESS'
}

Refund

申请退款, SPEC

let orderData = {
  out_trade_no: 'order1',
  out_refund_no: 'refund1',
  total_fee: 100,
  refund_fee: 100,
  op_user_id: '1234567890',
};
wechatPaymentInstance.refund({
  out_trade_no: 'order1'
})
.then(result=>{
  console.log(result);
})
.catch(err=>{
  console.log(err);
});

or

let orderData = {
  transaction_id: '1',
  out_refund_no: 'refund1',
  total_fee: 100,
  refund_fee: 100,
  op_user_id: '1234567890',
};
wechatPaymentInstance.refund({
  out_trade_no: 'order1'
})
.then(result=>{
  console.log(result);
})
.catch(err=>{
  console.log(err);
});

out_trade_notransaction_id 二选一

{
  return_code: 'SUCCESS',
  return_msg: 'OK',
  appid: 'your app id',
  mch_id: 'your merchant id',
  nonce_str: 'DFYEiS63BBNbwr9Y',
  sign: '9826704D76452E728B19C26BB7A81666',
  result_code: 'SUCCESS',
  transaction_id: '4001812001201606288028146396',
  out_trade_no: '5772427d816dfa0055f5b7c9',
  out_refund_no: 'refund5772427d816dfa0055f5b7c9',
  refund_id: '2001812001201607010302081102',
  refund_channel: '',
  refund_fee: '1',
  coupon_refund_fee: '0',
  total_fee: '1',
  cash_fee: '1',
  coupon_refund_count: '0',
  cash_refund_fee: '1'
}

Query Refund

查询退款详情, SPEC

wechatPaymentInstance.queryRefund({
  out_trade_no: 'order1'
})
.then(result=>{
  console.log(result);
})
.catch(err=>{
  console.log(err);
});

out_trade_no 也可以使用以下代替: transaction_id, out_refund_no, refund_id

{
  appid: 'your app id',
  cash_fee: '1',
  mch_id: '1329105201',
  nonce_str: '9cMaFrdWbYMaYyZi',
  out_refund_no_0: 'refund5772427d816dfa0055f5b7c9',
  out_trade_no: '5772427d816dfa0055f5b7c9',
  refund_channel_0: 'ORIGINAL',
  refund_count: '1',
  refund_fee: '1',
  refund_fee_0: '1',
  refund_id_0: '2001812001201607010302081102',
  refund_recv_accout_0: '支付用户的零钱',
  refund_status_0: 'SUCCESS',
  result_code: 'SUCCESS',
  return_code: 'SUCCESS',
  return_msg: 'OK',
  sign: 'A444F580BDD2D8306187D9AF14091B5C',
  total_fee: '1',
  transaction_id: '4001812001201606288028146396'
}

Transfers

企业付款是基于微信支付商户平台的资金管理能力,为了协助商户方便地实现企业向个人付款,针对部分有开发能力的商户,提供通过API完成企业付款的功能。SPEC

接口调用规则:
◆ 给同一个实名用户付款,单笔单日限额2W/2W
◆ 给同一个非实名用户付款,单笔单日限额2000/2000
◆ 一个商户同一日付款总额限额100W
◆ 单笔最小金额默认为1元
◆ 每个用户每天最多可付款10次,可以在商户平台--API安全进行设置
◆ 给同一个用户付款时间间隔不得低于15秒

let orderData = {
  partner_trade_no: 'transferOrder1', //商户订单号,需保持唯一性
  openid: 'open id',
  check_name: 'OPTION_CHECK',
  re_user_name: 'Mr Ma',
  amount: 100,
  desc: '红包',
  spbill_create_ip: '192.168.0.1'
}
wechatPaymentInstance.transfers(orderData)
.then(result=>{
  console.log(result);
})
.catch(err=>{
  console.log(err);
});

result 示例:

{
  return_code: 'SUCCESS',
  return_msg: '',
  mch_appid: 'app id',
  mchid: 'merchant id',
  device_info: '',
  nonce_str: 'x5pzs6q95pkchaorbsn6o8ic',
  result_code: 'SUCCESS',
  partner_trade_no: 'testTransferOrder10',
  payment_no: '1000018301201607010763072544',
  payment_time: '2016-07-01 10:44:55'
}

Query Transfer Info

查询付款详情, SPEC

wechatPaymentInstance.transfers({
	partner_trade_no: 'transferOrder1' //商户订单号,需保持唯一性
})
.then(result=>{
  console.log(result);
})
.catch(err=>{
  console.log(err);
});

result 示例:

{
  return_code: 'SUCCESS',
  result_code: 'SUCCESS',
  partner_trade_no: 'testTransferOrder10',
  mch_id: 'merchant id',
  detail_id: '1000018301201607010763072544',
  status: 'SUCCESS',
  openid: 'open id',
  payment_amount: '100',
  transfer_time: '2016-07-01 10:44:55',
  desc: '红包',
  return_msg: '获取成功'
}

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Last updated on 30 Nov 2017

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