Agent Host changes for agents/nodejs-express-rest-api-orm-swagger

node/app.js

@@ -0,0 +1,35 @@
+require('dotenv').config();
+
+const fs = require('node:fs');
+const path = require('node:path');
+const express = require('express');
+const swaggerUi = require('swagger-ui-express');
+const YAML = require('yamljs');
+const apiRouter = require('./routes/api');
+
+const app = express();
+const openApiPath = path.resolve(__dirname, '../webroot/openapi.yaml');
+const openApiDocument = YAML.parse(fs.readFileSync(openApiPath, 'utf8'));
+
+app.disable('x-powered-by');
+app.use(express.json({ limit: '1mb' }));
+app.get('/openapi.yaml', (req, res) => res.sendFile(openApiPath));
+app.use('/docs', swaggerUi.serve, swaggerUi.setup(openApiDocument));
+app.get('/', (req, res) => res.redirect('/docs'));
+app.use('/api', apiRouter);
+
+app.use((req, res) => res.status(404).json({
+  success: false,
+  error: { code: 404, message: 'Not found.' },
+}));
+
+app.use((error, req, res, next) => {
+  if (res.headersSent) return next(error);
+  if (error instanceof SyntaxError && error.status === 400 && 'body' in error) {
+    return res.status(400).json({ success: false, error: { code: 400, message: 'Invalid JSON body.' } });
+  }
+  console.error(error);
+  return res.status(500).json({ success: false, error: { code: 500, message: 'Internal server error.' } });
+});
+
+module.exports = app;