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@kauchy/wechat-pay-v3

v1.0.1

Published

Production-ready WeChat Pay API v3 helper: Native, JSAPI, notify verify & AES-GCM decrypt

Downloads

268

Readme

@kauchy/wechat-pay-v3

生产验证过的 微信支付 API v3 Node.js 封装。

能力

  • Native 扫码下单
  • JSAPI(小程序)下单
  • 小程序调起支付签名参数
  • 支付回调签名校验
  • 回调 resource AES-GCM 解密

安装

npm i @kauchy/wechat-pay-v3

快速开始

import { WechatPayV3 } from '@kauchy/wechat-pay-v3';

const pay = new WechatPayV3({
  mchid: process.env.WECHAT_PAY_MCHID,
  appid: process.env.WECHAT_PAY_APPID,
  serialNo: process.env.WECHAT_PAY_SERIAL_NO,
  apiV3Key: process.env.WECHAT_PAY_API_V3_KEY,
  privateKeyPath: process.env.WECHAT_PAY_PRIVATE_KEY_PATH,
  platformCertPath: process.env.WECHAT_PAY_PLATFORM_CERT_PATH
});

const { codeUrl } = await pay.createNative({
  outTradeNo: 'order_001',
  description: '充值示例',
  // amountFen:金额,单位是「分」(不是元)。1000 分 = 10.00 元
  amountFen: 1000,
  // notifyUrl:服务器上接收支付结果的公网 HTTPS 地址
  notifyUrl: 'https://example.com/api/pay/wechat/notify'
});

金额说明

微信支付下单金额用 ,字段名 amountFen

| amountFen | 实际金额 | |-----------|----------| | 1 | 0.01 元 | | 100 | 1 元 | | 1000 | 10 元 |

环境变量(可选)

WECHAT_PAY_MCHID / APPID / SERIAL_NO / API_V3_KEY / PRIVATE_KEY_PATH / PLATFORM_CERT_PATH

import { WechatPayV3 } from '@kauchy/wechat-pay-v3';
const pay = WechatPayV3.fromEnv();

License

MIT