Ultimate Guide To Drupal 8.6

Web Services
A major focus for Drupal 8 is a native REST API built into Drupal 8 and supported by the RESTful web services suite of modules. These enable Drupal 8 to
produce and consume web services for the creation of Drupal-powered decoupled and mobile applications, facilitate cross-site communication, and allow
better integration with third-party resources, for example in microservices-style applications.
The Drupal 8 REST API allows for fine-grained configuration of which resources should be available (nodes, taxonomy terms, users, and so on), what HTTP
methods are allowed against those resources (for example, GET, POST, PATCH, DELETE), and which formats and authentication are used to access those
resources. The contributed REST UI module provides an interface for this configuration. You can define which role(s) on your site may access resources
via each allowed HTTP method. For example, you can allow anonymous users to GET but only administrators to POST.
– Drupal 8 ships with the Guzzle PHP HTTP library, which gives developersus easy syntax to retrieve and post data to Drupal or to talk to third-party
web services, such as Twitter or Github.
– Another web services feature in Drupal 8 offered by the RESTful web services module is the ability to add a “REST export” display to any view
provided by the views module.
– This means you can easily create JSON or XML feeds of custom dynamic content from your Drupal site, just by clicking them together.
Future versions of Drupal 8 aim to ship with JSON API standard as the default output.
Improved Caching
Caching in Drupal 8 has been improved across the board.
– Fast by default: All caching features such as CSS/JS aggregation and BigPipe are turned on out of the box.
– Entity cache module is now in core, which allows queries to be offloaded from the database onto alternative storage, such as Memcache or Redis.
– Cache tags allow for much more granular cache clearing when content or settings are updated on the site.
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