Real npm install + live dev server, powered by StackBlitz — first load can take a few seconds.
Frontend runs for real in StackBlitz; each project talks to a small in-memory mock API included in the project (no real database — the same data shapes used in the lessons).
Headers
Key
Value
Body (JSON)
Response
Send a request to see the response here. Only APIs that allow cross-origin requests (CORS) can be reached from the browser.