This is the complete source code for Chapter 2 of Real-Time Web Application Development with Vert.x. To run the application, type: vertx run app.js Then point your web browser to http://localhost:8080 The files included: * app.js - The deployment verticle * mindmaps.js - Mind map management verticle * web/index.html - The application's HTML host page * web/client.js - The client-side code of the application