Working with get requests. How to return all the data, not a portion?

Question

API

There is a certain api of the company to which you need to connect and collect data.
On a get request to show products, it gives me a json code of 9 products.
It is issued according to api "in portions".
Even if I write a request with a filter by price or by material, it still receives json code from 9 positions.
And I need all positions.
Therefore, I, a small, incomprehensible person in these matters, ask you for help, in general, as always.



And now the question is:
- How to return the data of all goods and not portions?

Thank you in advance, you people behind the monitors who help other people in solving their problems, you are great)