快直播特惠活动

const express = require('express');
const bodyParser = require('body-parser');
const app = express();

app.use(bodyParser.json());

// 假设有一个处理特惠活动注册的API
app.post('/register-promotion', (req, res) => {
    const { userId, promotionCode } = req.body;

    // 验证促销码是否有效
    if (isValidPromotionCode(promotionCode)) {
        // 应用促销码并返回成功信息
        applyPromotionToUser(userId, promotionCode);
        res.status(200).json({ message: 'Promotion applied successfully!' });
    } else {
        res.status(400).json({ error: 'Invalid promotion code.' });
    }
});

function isValidPromotionCode(code) {
    // 这里应该有实际的验证逻辑，比如查询数据库
    return code === 'SUMMER2023';
}

function applyPromotionToUser(userId, code) {
    // 应用促销码到用户的账户
    console.log(`Promotion ${code} applied to user ${userId}`);
}

app.listen(3000, () => {
    console.log('Server is running on port 3000');
});