In this screencast I'm integrating a data grid Web Component / Custom Element https://vaadin.com/elements/vaadin-grid with plain ES 2015 code and connect it with a Java EE 8 microservice. Backend and frontend were created and connected from scratch. In 10 mins.
See you at Structuring Single Page Applications (SPA)s / Progressive Web Applications (PWA)s with WebComponents -- the "no frameworks, no migrations" approach, at Munich Airport, Terminal 2 or webcomponents.training (online).
NEW: Online Workhop Effective WebApps without Frameworks is also coming to: MUC Airport.