Function wrapNetlifyFunction

server.js:112–152

(handler)

// 包装Netlify Functions为Express路由
function wrapNetlifyFunction(handler) {
    return async (req, res) => {
        try {
            const headers = Object.assign({}, req.headers);
            // 仅在客户端未提供密钥时注入内部密钥（避免覆盖）
            if (INTERNAL_FUNCTION_KEY && !headers['x-esim-key'] && !headers['x-app-key']) {
                headers['x-esim-key'] = INTERNAL_FUNCTION_KEY;
            }
            const event = {
                httpMethod: req.method,
                headers,
                body: JSON.stringify(req.body),
                queryStringParameters: req.query
            };

            const context = {};
            const result = await handler.handler(event, context);

            res.status(result.statusCode);

            if (result.headers) {
                Object.entries(result.headers).forEach(([key, value]) => {
                    res.set(key, value);
                });
            }

            if (result.body) {
                const body = typeof result.body === 'string' ? result.body : JSON.stringify(result.body);
                res.send(body);
            } else {
                res.end();
            }
        } catch (error) {
            console.error('API Error:', error);
            res.status(500).json({
                error: 'Internal Server Error',
                message: error.message
            });
        }
    };
}

// API端点（同时挂 /.netlify/functions/* 与 /bff/*，本地模拟 Edge BFF 代理）
const functionRoutes = [