Run the backend app first open terminal in backend/ directory $ npm install then 3.$ npm run start Testing in Postman Download Postman from https://www.getpostman.com/. Postman is a software that helps you make requests to servers. Import postman.json inside postman in order to get the requests we've made on the server (check internet for this). Use Postman to make requests to localhost:port, in this case to localhost:3000. Run the frontend Open frontend/index.html in browser Have fun