first commit of v.02 application

server/src/index.js

@@ -0,0 +1,66 @@
+'use strict';
+
+import 'dotenv/config';
+import express from 'express';
+import cors from 'cors';
+import logger from './logger.js';
+import notebookRoutes from './routes/notebooks.js';
+import sourceRoutes from './routes/sources.js';
+import queryRoutes from './routes/query.js';
+import citationDetailRoutes from './routes/citationDetail.js';
+import documentRoutes from './routes/documents.js';
+
+const PORT = process.env.PORT || 8080;
+
+const REQUIRED_KEYS = ['ANTHROPIC_API_KEY', 'VOYAGE_API_KEY', 'OPENAI_API_KEY'];
+for (const key of REQUIRED_KEYS) {
+  if (!process.env[key]) {
+    logger.warn(`${key} is not set — API calls that need it will fail`);
+  }
+}
+
+const app = express();
+
+// CORS: wide-open for local dev. In production, lock this to specific origins.
+app.use(cors());
+app.use(express.json());
+
+app.use((req, res, next) => {
+  const start = Date.now();
+  res.on('finish', () => {
+    logger.info({
+      method: req.method,
+      url: req.originalUrl,
+      status: res.statusCode,
+      ms: Date.now() - start,
+    });
+  });
+  next();
+});
+
+app.get('/.well-known/healthcheck', (req, res) => {
+  res.json({
+    service: 'notebook-clone',
+    status: 'ok',
+    uptime: process.uptime(),
+  });
+});
+
+app.use('/api/notebooks', notebookRoutes);
+app.use('/api/sources', sourceRoutes);
+app.use('/api/query', queryRoutes);
+app.use('/api/citation-detail', citationDetailRoutes);
+app.use('/api/documents', documentRoutes);
+
+app.use((err, req, res, _next) => {
+  logger.error({ err, method: req.method, url: req.originalUrl });
+  res.status(err.status || 500).json({
+    error: err.message || 'internal server error',
+  });
+});
+
+app.listen(PORT, () => {
+  logger.info({ port: PORT }, 'server listening');
+});
+
+export default app;