In February, I built a WordPress plugin that allowed users to browse blogs by choosing a top-level category in one select box and then having whatever top-level category they select populate a second select box with the subcategories of that top-level category. I decided I would re-create that functionality as a Drupal 8 module.
For the moment, I just want to explore some of the features that I found particularly interesting in the module I wrote to show the old Drupal 7 posts in the left sidebar.
First, to access the JSON data that comes through the web service I set up on my Drupal 7 installation at http://webmech.biz, I used the Guzzle HTTP client library, which was added to the initial Drupal 8 release. The Guzzle API is object-oriented and easy to use: