What is a Drupal page?
Drupal (/ˈdruːpəl/) is a free and open-source web content management system (CMS) written in PHP and distributed under the GNU General Public License. The Drupal core installation can serve as a simple website, a single- or multi-user blog, an Internet forum, or a community website providing for user-generated content.
How do I use Drupal cache?
To use the Cache API:
- Request a cache object through \Drupal::cache() or by injecting a cache service.
- Define a Cache ID (cid) value for your data.
- Call the get() method to attempt a cache read, to see if the cache already contains your data.
What is caching in Drupal?
Drupal page caching keeps copies of the fully rendered HTML for a page; this can include content, views, images, and so on. When you’re troubleshooting issues with caching, understanding how Drupal handles the page cache can help you narrow down the problem more quickly.
What is a cache context?
A cache context is a string that refers to one of the available cache context services (see below). Cache contexts are passed around in sets (order doesn’t matter) of strings, so they are typehinted to string[] . A user has a set of permissions, so per-user caching implies per-permissions caching.
Is Drupal front end or backend?
The frontend is built in different technologies and communicates with Drupal via an API. In the graph, we can see that Drupal serves as the backend system. The frontend, which the client sees, is separate from Drupal.
Why is Drupal used?
Drupal is a free, open-source content management system (CMS) with a large, supportive community. It’s used by millions of people and organizations around the globe to build and maintain their websites. For example, Drupal is free to download and anyone can modify and extend the platform.
Which type of caching is used in Drupal?
By default, Drupal 8 enables two modules: Internal Page Cache and Internal Dynamic Page Cache. Internal Page Cache caches pages for anonymous users. Internal Dynamic Page Cache caches contents of the page except for the personalized pieces, so they can be used for the anonymous and authorized users.
How does Varnish cache work in Drupal?
Varnish Cache is a web application accelerator also known as a caching HTTP reverse proxy. Varnish is used on thousands of Drupal sites to speed up page load performance by a factor of 10-1000x, and it can be used with cache tags to make cache invalidation easy.
What is page cache in Drupal 8?
Drupal 8 provides the Dynamic Page Cache module that is recommended for websites of all sizes. This feature improves performance because it makes it possible to cache pages with dynamic content. Pages requested by users (anonymous or authenticated) are stored the first time they are requested and can then be reused.
What is Drupal context?
Context allows you to manage contextual conditions and reactions for different portions of your site. You can think of each context as representing a “section” of your site.
What is cache Drupal 8?
In computing, a cache is a hardware or software component that stores data, so future requests for that data can be served faster. Thus, the higher the number of requests that can be served from the cache, the faster the system performs. In Drupal 8, Cache API is used to store data that takes a long time to compute.
Is Drupal used for front-end?
In a headless Drupal architecture, developers have the flexibility to build the front-end on their own without using Drupal. While Drupal still serves as a backend repository, front-end frameworks can talk to the database via API calls.