Welcome to our Book Store! For this application to run properly you need to clone/download its server app from the following repo: https://github.com/avimaymon/JSON-Server-for-Angular2-Book-Store First, run the server with the command : json-server --watch db.json The server will listen to port 3000 To visit go to address 127.0.0.1:3000 Then, run the client app with the command : npm start To visit go to address 127.0.0.1:3001 Enjoy!