Michał Kwiatkowski

Building most single-page applications (SPAs for short) is a two-step process: first you create a JSON API in a backend technology of choice and then you use that API in the JavaScript application. Here we'll be using Ruby on Rails on the backend and AngularJS on the frontend.

When working on web applications we take a lot of supporting technology for granted. We build our code on top of a multi-layered network stack with HTTP as the glue. Each user interaction with our app may cause several HTTP requests that are routed and handled separately, often in parallel.