You will probably need to save the HTML content from the editor element to the database or using API in your app. Then you will also need to load that content from the database to display it in the editor. We offer two ways how to do that.
How to configure the editor element to load and save the content:
Option 1 (suggested): If you need more control over the content saving/loading and avoid possible unwanted behavior, set-up the following:
To load the data to the editor, use Initial content element field action. Alternatively, you can use Set content action.