I have json file, for example. In localhost I started json server to start it json. And through fetch connect. if that's all on do in REACT

{
  "films": [
    {
      "poster": "https://thumbs.filmix.ac/posters/4925/thumbs/w220/vypusknoy-klass-2022_158825.jpg",
      "image": "https://filmix.ac/uploads/frames/158434/f350076-novi-4w-zateryannyy-gorod-2022_original.jpg",
      "rating": "6.2",
      "year": "2022",
      "id": "Graduate-class-2022"
    }...

So now a question: I have hosting and I want to create a subdomain where only json will be stored, can you tell me how to connect json then? Can I just connect (although I tried it didn’t work) or do I need to write a server on a separate domain?