Upload index.js

index.js

@@ -1 +1,136 @@
-console.log('Happy developing ✨')
+const express = require('express');
+const cors = require('cors');
+const dotenv = require('dotenv');
+const path = require('path');
+
+// Import models
+const News = require('./models/News');
+const Dataset = require('./models/Dataset');
+
+dotenv.config();
+
+const app = express();
+// Use port 8501 for Hugging Face Spaces, or 3001 for local development
+const PORT = process.env.HF_SPACES ? 8501 : (process.env.PORT || 3001);
+
+// Enable CORS for all origins in development, specific origins in production
+if (process.env.NODE_ENV === 'development') {
+  app.use(cors());
+} else {
+  // In production (like Hugging Face Spaces), be more specific about CORS
+  app.use(cors({
+    origin: function (origin, callback) {
+      // Allow requests with no origin (like mobile apps or curl requests)
+      if (!origin) return callback(null, true);
+      
+      // Allow localhost in development
+      if (origin.startsWith('http://localhost') || 
+          origin.startsWith('https://localhost') ||
+          origin.includes('huggingface.co') ||
+          origin.includes('hf.space') ||
+          origin === 'http://localhost:80' ||
+          origin === 'http://localhost:5173') {
+        return callback(null, true);
+      }
+      
+      // Allow same origin requests
+      if (origin === `http://localhost:${PORT}`) {
+        return callback(null, true);
+      }
+      
+      callback(null, true); // Allow all in production for now
+    }
+  }));
+}
+
+app.use(express.json());
+
+// Serve static files from the client build in production
+if (process.env.NODE_ENV === 'production') {
+  app.use(express.static('/usr/share/nginx/html'));
+}
+
+// Health check endpoint
+app.get('/health', (req, res) => {
+  res.status(200).json({ 
+    status: 'OK', 
+    timestamp: new Date().toISOString(),
+    uptime: process.uptime()
+  });
+});
+
+app.get('/', (req, res) => {
+  if (process.env.NODE_ENV === 'production') {
+    // In production, serve the React app
+    res.sendFile(path.resolve('/usr/share/nginx/html/index.html'));
+  } else {
+    res.json({ 
+      message: 'BioNexus Hub API', 
+      version: '1.0.0',
+      timestamp: new Date().toISOString()
+    });
+  }
+});
+
+app.get('/api/news', async (req, res) => {
+  try {
+    const news = await News.getAll();
+    res.json(news);
+  } catch (error) {
+    console.error('Error fetching news:', error);
+    res.status(500).json({ error: 'Failed to fetch news' });
+  }
+});
+
+app.get('/api/news/:id', async (req, res) => {
+  try {
+    const { id } = req.params;
+    const newsItem = await News.getById(id);
+    if (!newsItem) {
+      return res.status(404).json({ error: 'News item not found' });
+    }
+    res.json(newsItem);
+  } catch (error) {
+    console.error('Error fetching news item:', error);
+    res.status(500).json({ error: 'Failed to fetch news item' });
+  }
+});
+
+app.get('/api/datasets', async (req, res) => {
+  try {
+    const datasets = await Dataset.getAll();
+    res.json(datasets);
+  } catch (error) {
+    console.error('Error fetching datasets:', error);
+    res.status(500).json({ error: 'Failed to fetch datasets' });
+  }
+});
+
+app.get('/api/datasets/:id', async (req, res) => {
+  try {
+    const { id } = req.params;
+    const dataset = await Dataset.getById(id);
+    if (!dataset) {
+      return res.status(404).json({ error: 'Dataset not found' });
+    }
+    res.json(dataset);
+  } catch (error) {
+    console.error('Error fetching dataset:', error);
+    res.status(500).json({ error: 'Failed to fetch dataset' });
+  }
+});
+
+// In production, serve the React app for any non-API routes
+if (process.env.NODE_ENV === 'production') {
+  app.get('*', (req, res) => {
+    if (!req.path.startsWith('/api/') && req.path !== '/health') {
+      res.sendFile(path.resolve('/usr/share/nginx/html/index.html'));
+    } else {
+      res.status(404).json({ error: 'API endpoint not found' });
+    }
+  });
+}
+
+app.listen(PORT, '0.0.0.0', () => {
+  console.log(`BioNexus Hub server running on port ${PORT}`);
+});