Kick-off "Thus wrote the Bard…" SPA

[tgglv]

This issue contains starter articles to continue development of Single Page Application.

General Scheme (created in https://www.websequencediagrams.com/)

title Thus wrote the Bard SPA
SPA->REST\nAPI: Get a quote
REST\nAPI->External\nResource: Get a quote
External\nResource-->REST\nAPI: The quote
REST\nAPI-->SPA: The quote

REST API Handbook (just for the reference, we have already used it)

Create React App (Node application to create Reacts apps fast and easy).

An article about embedding React apps into WordPress.

TODOs:

• Prepare a new plugin using wp scaffold command (you need WP CLI do to this)
• Create an App using Create React App in the new plugin (hereafter I won't mention that we do everything in the newly created plugin)
• Create an REST API method to fetch quotes as previous implementation of "Thus wrote the Bard" does
• Create a markup in our React App using JSX (at least a clickable element; we will fetch and show retrieved data by this click)

[KokkieH]

Moving this to a new repository I created for this project.