Decaflon

Scalability plays a central role when designing the ways in which data can be requested from a service, be it via an API call or HTML page request. Both types fetch raw data, process it, and then format it into a presentation format such as HTML, XML, JSON, etc. In the case of a server-rendered HTML page, all the different requests are made internally, hidden from the user, and a single page is returned. If the page uses AJAX scripts, the browser makes multiple API calls to fetch individual data sets, but the server still has to fetch the raw data, process it, and format it. It is the size of the batch that makes the difference.