This presentation basically explains the processes involved in making HTTP Requests in Angular using a small app I've been working on called the musicVoter App... You can check out the project on GitHub at https://github.com/Benneee/musicVoter
APP 1. Set up a backend for the app - (e.g Firebase) 2. Set up a Service in the angular app - SongDataService 3. Initialise and import the Service in the app.component.ts and app.module.ts 4. Assign a button with the helper function for the HTTP Method in the app.component.html and define function.