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

/**
 * 微信支付 - 通过商户退款单号查询单笔退款
 */
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_query',
            data: {
                params: {
                    out_refund_no: '2024040118006666', // 填入商户退款单号
                },
            },
        },
    });
    return res.result;
};