first commit

backend/src/index.ts

@@ -0,0 +1,105 @@
+import 'express-async-errors';
+import express from 'express';
+import cors from 'cors';
+import helmet from 'helmet';
+import rateLimit from 'express-rate-limit';
+import dotenv from 'dotenv';
+import { logger } from './utils/logger';
+import { errorHandler } from './middleware/errorHandler';
+import { notFoundHandler } from './middleware/notFoundHandler';
+import authRoutes from './routes/auth';
+import userRoutes from './routes/users';
+import accountRoutes from './routes/accounts';
+import adminRoutes from './routes/admin';
+import { connectDatabase } from './config/database';
+
+// Load environment variables
+dotenv.config();
+
+const app = express();
+const PORT = process.env.PORT || 3001;
+
+// 信任代理，确保正确获取客户端IP地址
+app.set('trust proxy', true);
+
+// Security middleware
+app.use(helmet());
+app.use(cors({
+  origin: process.env.NODE_ENV === 'production' 
+    ? ['http://frontend:3000',"http://backend:3001"] 
+    : ['http://localhost:3000', 'http://localhost:5173'],
+  credentials: true
+}));
+
+// Rate limiting
+const limiter = rateLimit({
+  windowMs: parseInt(process.env.RATE_LIMIT_WINDOW_MS || '900000'), // 15 minutes
+  max: parseInt(process.env.RATE_LIMIT_MAX_REQUESTS || '100'), // limit each IP to 100 requests per windowMs
+  message: {
+    error: 'Too many requests from this IP, please try again later.'
+  }
+});
+app.use('/api/', limiter);
+
+// Body parsing middleware
+app.use(express.json({ limit: '10mb' }));
+app.use(express.urlencoded({ extended: true }));
+
+// Request logging
+app.use((req, res, next) => {
+  logger.info(`${req.method} ${req.path}`, {
+    ip: req.ip,
+    userAgent: req.get('User-Agent')
+  });
+  next();
+});
+
+// Health check endpoint
+app.get('/health', (req, res) => {
+  res.json({ 
+    status: 'OK', 
+    timestamp: new Date().toISOString(),
+    uptime: process.uptime()
+  });
+});
+
+// API routes
+app.use('/api/auth', authRoutes);
+app.use('/api/users', userRoutes);
+app.use('/api/accounts', accountRoutes);
+app.use('/api/admin', adminRoutes);
+
+// Error handling middleware
+app.use(notFoundHandler);
+app.use(errorHandler);
+
+// Start server
+async function startServer() {
+  try {
+    // Connect to database
+    await connectDatabase();
+    logger.info('Database connected successfully');
+
+    // Start server
+    app.listen(PORT, () => {
+      logger.info(`Server running on port ${PORT}`);
+      logger.info(`Environment: ${process.env.NODE_ENV}`);
+    });
+  } catch (error) {
+    logger.error('Failed to start server:', error);
+    process.exit(1);
+  }
+}
+
+// Handle graceful shutdown
+process.on('SIGTERM', () => {
+  logger.info('SIGTERM received, shutting down gracefully');
+  process.exit(0);
+});
+
+process.on('SIGINT', () => {
+  logger.info('SIGINT received, shutting down gracefully');
+  process.exit(0);
+});
+
+startServer();