first commit

api/app.ts

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+/**
+ * This is a API server
+ */
+
+import express, { type Request, type Response, type NextFunction }  from 'express';
+import cors from 'cors';
+import path from 'path';
+import dotenv from 'dotenv';
+import { fileURLToPath } from 'url';
+import authRoutes from './routes/auth.js';
+import videoRoutes from './routes/videos.js';
+import statsRoutes from './routes/stats.js';
+import uploadRoutes from './routes/upload.js';
+import topicsRoutes from './routes/topics.js';
+import categoriesRoutes from './routes/categories.js';
+import { initDatabase } from './config/database.js';
+
+// for esm mode
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+
+// load env
+dotenv.config();
+
+
+const app: express.Application = express();
+
+app.use(cors());
+app.use(express.json({ limit: '10mb' }));
+app.use(express.urlencoded({ extended: true, limit: '10mb' }));
+
+/**
+ * Initialize Database
+ */
+initDatabase().catch(console.error);
+
+/**
+ * API Routes
+ */
+app.use('/api/auth', authRoutes);
+app.use('/api/videos', videoRoutes);
+app.use('/api/stats', statsRoutes);
+app.use('/api/upload', uploadRoutes);
+app.use('/api/topics', topicsRoutes);
+app.use('/api/categories', categoriesRoutes);
+
+/**
+ * Static file serving for uploads
+ */
+app.use('/uploads', express.static(path.join(process.cwd(), 'uploads')));
+
+/**
+ * health
+ */
+app.use('/api/health', (req: Request, res: Response, next: NextFunction): void => {
+  res.status(200).json({
+    success: true,
+    message: 'ok'
+  });
+});
+
+/**
+ * error handler middleware
+ */
+app.use((error: Error, req: Request, res: Response, next: NextFunction) => {
+  res.status(500).json({
+    success: false,
+    error: 'Server internal error'
+  });
+});
+
+/**
+ * 404 handler
+ */
+app.use((req: Request, res: Response) => {
+  res.status(404).json({
+    success: false,
+    error: 'API not found'
+  });
+});
+
+export default app;