How to make and on what to make a server for synchronization with an android application?

Question

Android

Good afternoon, I started writing a project on android studio and ran into such a problem that I need to implement registration and synchronization of the news feed in the application.
The idea was as follows: there is a server on a non-database with accounts and news, it is also possible to add these news through a web service.
Any help would be very helpful, tk. I'm just learning and I really want to implement this project. Please do not pass by kind people!

Answer 1

The simplest way would be to create a web service with interfaces for authorization, registration, downloading and adding news. Let the service itself access the database. It is not a problem to connect to the service from android. On what to implement the third question, it all depends on which language is better known and what load is planned, it is possible on almost any.

Answer 2

on anything..
parse.com
php, node.js, native-app
REST API itself is important here

Answer 3

node.js, Ruby on Rails
Depends on the tasks and functionality of the REST API