57 lines
1.8 KiB
TypeScript
57 lines
1.8 KiB
TypeScript
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import express, { type Express, type Request, type Response } from 'express';
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import cors from 'cors';
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import { API_PREFIX } from '@classhelper/shared';
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import { env } from './config/env.js';
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import { pingDatabase } from './lib/db.js';
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import { sendOk } from './lib/http.js';
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import { logger } from './lib/logger.js';
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import { errorHandler, notFoundHandler } from './middleware/error.js';
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import { apiModules } from './modules/registry.js';
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async function healthHandler(_req: Request, res: Response): Promise<void> {
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sendOk(
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res,
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{
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status: 'ok',
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version: '0.1.0',
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uptimeSeconds: Math.round(process.uptime()),
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database: {
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provider: env.databaseProvider,
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connected: await pingDatabase(),
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},
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modules: apiModules.map((module) => module.name),
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},
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'服务运行正常',
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);
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}
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/** 组装 Express 应用：中间件 -> 健康检查 -> 模块路由 -> 404 -> 统一错误处理 */
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export function createApp(): Express {
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const app = express();
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app.disable('x-powered-by');
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app.use(cors({ origin: env.corsOrigins, credentials: true }));
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app.use(express.json({ limit: '2mb' }));
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app.use(express.urlencoded({ extended: true }));
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app.use((req, _res, next) => {
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logger.debug(`${req.method} ${req.originalUrl}`);
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next();
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});
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// 健康检查（同时暴露已挂载模块列表，便于确认模块化装配结果）
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app.get(`${API_PREFIX}/health`, healthHandler);
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app.get('/health', healthHandler);
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// 模块化装配：注册表里的每个模块挂载到 /api<basePath>
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for (const module of apiModules) {
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const mountPath = `${API_PREFIX}${module.basePath}`;
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app.use(mountPath, module.router);
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logger.info(`已挂载模块 ${module.name.padEnd(14)} -> ${mountPath}`);
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}
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app.use(notFoundHandler);
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app.use(errorHandler);
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return app;
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}
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