If you’ve ever built a frontend prototype, mobile app, or design demo, you’ve likely run into this common headache:
You connect your app to a mock REST API (like standard JSONPlaceholder). You construct a sleek UI form, send a POST request to add a new item, and receive a glowing 201 Created response.
Then you refetch the data... and your new item has completely disappeared. 👻
Because standard mock services don't actually save your mutations, testing realistic user flows like pagination, item updates (PUT/PATCH), or row deletions (DELETE) requires setting up local mock servers like MSW or json-server.
That’s exactly why I built Playground API.
