wx-parent/cloud/wxpayFunctions/wxpay_refund/index.js

/**
 * 微信支付 - 申请退款
 */
const cloud = require('wx-server-sdk');
cloud.init({ env: cloud.DYNAMIC_CURRENT_ENV });

// 云函数入口函数
exports.main = async (event, context) => {
    const res = await cloud.callFunction({
        name: 'cloudbase_module',
        data: {
            name: 'wxpay_refund',
            data: {
                // transaction_id: '1217752501201407033233368018', // 微信订单号
                // out_refund_no: '2024040118006666',  // 商户内部退款单号
                // amount: {
                //     refund: 1, // 退款金额
                //     total: 1, // 原订单金额,
                //     currency: 'CNY',
                // },
                transaction_id: event.transaction_id,
                out_trade_no: event.out_trade_no,
                out_refund_no: event.out_refund_no,
                amount: event.amount,
            },
        },
    });
    return res.result;
};