Overview
I had the opportunity to use the “JSON Field” module for handling JSON format fields in Drupal, so this is a personal note for future reference.
https://www.drupal.org/project/json_field
As a result, JSON can now be handled together with an editor as shown below.
Installation
Download it with the following commands.
Furthermore, enable the widget as well with the following.
If enabling from the GUI, enable the following two modules.
Configuration
Add a JSON field in the field management of the content type.
Then, select the widget in “Manage form display”.
As a result, the following form is displayed on the content editing screen.
Summary
I hope this serves as a useful reference for managing JSON in Drupal.