11.11多人交互游戏购买

<button id="buyButton">购买装备</button>
<script>
document.getElementById('buyButton').addEventListener('click', function() {
    if (confirm("确定要购买此装备吗？")) {
        // 发送购买请求到服务器
        fetch('/api/purchase', {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json'
            },
            body: JSON.stringify({ itemId: 123 })
        })
        .then(response => response.json())
        .then(data => {
            if (data.success) {
                alert("购买成功！");
                // 更新用户界面显示新购买的装备
            } else {
                alert("购买失败：" + data.message);
            }
        });
    }
});
</script>

@app.route('/api/purchase', methods=['POST'])
def purchase_item():
    data = request.get_json()
    item_id = data.get('itemId')
    
    # 验证用户身份和余额
    user = authenticate_user(request.user_id)
    if not user or not user.has_sufficient_funds(item_id):
        return jsonify(success=False, message="余额不足")
    
    # 执行购买逻辑
    success = perform_purchase(user.id, item_id)
    if success:
        return jsonify(success=True, message="购买成功")
    else:
        return jsonify(success=False, message="服务器错误")