How to mock a paginated REST API (no backend)

Two parameters, that's the whole contract

Every collection endpoint accepts page and limit. No SDK, no config — they are plain query-string parameters.

GET /m/you/shop/products?page=2&limit=10Host: mocksmith.lioncore.dev

• page — 1-based. Defaults to 1, capped at 10 000.
• limit — items per page. Defaults to 20, capped at 100.
• Out-of-range or garbage values fall back to the defaults instead of erroring.

A response envelope you can paginate on

The collection comes wrapped with everything a pager needs — the slice of data, plus the counts to build page controls.

{  "data": [    { "id": "8f3a…", "name": "Forged Hammer", "price": 24.9 }  ],  "page": 2,  "limit": 10,  "total": 137,  "totalPages": 14}

Wire an infinite scroll (or a pager)

totalPages is all you need to know when to stop. Here, fetching an entire collection page by page:

const base = "https://mocksmith.lioncore.dev/m/you/shop"; async function fetchAll() {  const all = [];  let page = 1;  while (true) {    const res = await fetch(`${base}/products?page=${page}&limit=100`);    const { data, totalPages } = await res.json();    all.push(...data);    if (page >= totalPages) break;    page++;  }  return all;}

Get there in three moves