How to make a list of liked objects in Angular?

Question

MongoDB

To do something, I took a trial assignment for the vacancy of a junior developer. Given a huge JSON file like this:

{
 "название":"ссылка",
 "название":"ссылка",
 "название":"ссылка",
 и тд
}

There are emojis, and on the latest version of Angular you need to make a table with them, three columns: title, link, preview.
I created a project in the CLI and began to do. What is written above has already been done.
Next - you need the ability to like them and delete them. Lined and deleted should be displayed on separate pages. And all this should remain unchanged after page refresh.
I so understand, it is necessary to do a database? Need MongoDB? How to link it with Angular?
Do I need to create a server.js to talk to the database and run it with the "node server.js" command? And how to link server.js in this case with the server that Angular itself creates?