This is a demo of Angular 2 (-alpha.21) which contains a basic application with JWT authentication.
It uses the boilerplate made by Pawel Kozlowski called ng2-play.
This example is heavily inspired in the demo made by Matias Gontovnikas and PatrickJS which is also an Angular 2 demo with JWT angular2-authentication-sample.
If you want to learn more about this demo, visit Angular-Tips
If you just want to run it, download the companion backend, run it and then:
$ cd after
$ npm install
$ npm start
Then visit http://localhost:3000