myex-cli/src/app.js

Opinionated Express.js framework with CLI tools

import express from 'express';
import 'dotenv/config';
import swaggerUi from 'swagger-ui-express';
import { connectToDatabase } from './db/connection.js';
import { configureMiddleware } from './middlewares/index.js';
import { configureSecurity } from './security/index.js';
import { configureRoutes } from './routes/index.js';
import { configureErrorHandlers } from './middlewares/errorHandlers.js';
import { logger } from './utils/logger.js';
import swaggerSpec from './config/swagger.js';

// Initialize Express app
const app = express();
const PORT = process.env.PORT || 3000;

// Connect to MongoDB
connectToDatabase();

// Configure security middleware
configureSecurity(app);

// Configure regular middleware
configureMiddleware(app);

// Setup Swagger UI
app.use('/api-docs', swaggerUi.serve, swaggerUi.setup(swaggerSpec, {
  explorer: true,
  customCss: '.swagger-ui .topbar { display: none }',
  customSiteTitle: "MYX API Documentation",
}));

// Expose swagger.json
app.get('/swagger.json', (req, res) => {
  res.setHeader('Content-Type', 'application/json');
  res.send(swaggerSpec);
});

// Register routes
configureRoutes(app);

// Configure error handlers (should be last)
configureErrorHandlers(app);

// Start the server only if we're not in test mode
if (process.env.NODE_ENV !== 'test') {
  app.listen(PORT, () => {
    logger.info(`Server running in ${process.env.NODE_ENV} mode on port ${PORT}`);
    logger.info(`API Documentation available at http://localhost:${PORT}/api-docs`);
  });
}

// For testing purposes
export default app;