How to correctly connect data when working with API?

Question

PHP

There are 2 applications: main and auxiliary. The second receives data from the first through the API. In some cases directly, in some of the JS.
API <=> Application <=> JS .
It was necessary to combine orders with other data and display them in a table. Options:

• make several requests from JS and connect on the client (minus: if you also need to get it in Application, then you need to duplicate the logic;
  
• make a general request from JS to Application of the form get-orders-with-xxx (minus: each script has its own request);
  
• Graph API, but it's too future.
  

How to do it better?

Answer 1

Better in the API is the only method
- if it does not slow down, then /api/get-orders-with-invoices
- if it slows down, then /api/get-orders with the optional parameter 'isWithInvoices'
Sorting is also a separate parameter 'sortField'.
In order not to produce another asc / desc parameter, you can sortField=name in ascending order and sortField=-name in descending order.