How to write an application for a site that is written in wordpress?

Question

PHP

Hello. I have a blog written in wordpress. I want to write an application for smartphones. Output of categories, loading of articles depending on the wordpress settings. I want to write in angularjs, i.e. pure js. How can you make requests to wp, or wp itself can already give ready-made data for menus, articles, etc. in json.

Answer 1

REST API, but not the one that Dmitry Voronkov advises , but the one that is in the process of merging into the WP core. Actually, v2.wp-api.org .

Answer 2

API