Best practice for mean stack project

I'm working on a MEAN stack project. It has front-end for the web and app for mobile also has admin panel.

What is the best scenario?

• One Restful API using Nodejs for app and web and the admin panel will be embedded not using API but using ejs and NodeJS?
• One Restful API for all and also admin panel will use API and it will be a separate project?

via Moustafa Elkady