datahub-proxy-middleware

const express = require('express'); const datahubMiddleware = require('datahub-proxy-middleware'); const DataHub = require('macaca-datahub'); const app = express(); const port = 3000; // Minimal DataHub configuration for quickstart const datahubPort = 5678; const datahubConfig = { port: datahubPort, hostname: '127.0.0.1', proxy: { '/api': { hub: 'my_project_hub', port: datahubPort, hostname: 'localhost', pathOptions: { start: true } }, }, // In a real scenario, you'd have actual data in a store store: require('path').join(__dirname, 'data'), showBoard: false // Set to true to see the DataHub UI }; // Initialize and start DataHub server const datahubInstance = new DataHub({ port: datahubConfig.port, }); datahubInstance.startServer(datahubConfig).then(() => { console.log(`DataHub server ready on ${datahubConfig.hostname}:${datahubConfig.port}`); }); // Apply datahub-proxy-middleware to your Express app app.use(datahubMiddleware(app)(datahubConfig)); // Example route (will be proxied by datahubMiddleware if matching /api) app.get('/api/users', (req, res) => { res.json({ message: 'This should be mocked by DataHub!' }); }); // Fallback for non-proxied routes app.get('/', (req, res) => { res.send('Hello from Express!'); }); app.listen(port, () => { console.log(`Express app listening at http://localhost:${port}`); console.log('Try accessing http://localhost:3000/api/users (requires DataHub to serve mock data)'); });