What is the best way to organize the project architecture?

Question

PHP

How best to organize the architecture of the project, which will contain the main site and additional. application, it is implemented on a subdomain. A site with a blog, standard for wordpress, but the application is written in ReacJs + NodeJs. Does it make sense to use wordpress, considering that making a blog on node is not a very good idea? In this case, the application will work through the API. Is it the optimal solution to separate the site and application using a domain and a subdomain and create two different databases?

Answer 1

You have not one project here, but two.
Therefore, it is meaningless to talk about some kind of "project structure".

Answer 2

https://developer.wordpress.org/rest-api/