Kijan mwen ka konekte React ak yon API REST?

Question

Mwen gen yon app React e mwen vle chaje done ki soti nan yon API REST.

Mwen eseye sa a:

```js
useEffect(() => {
  fetch('/api/items').then(r => r.json()).then(setItems);
}, []);
```

Men `items` toujou vid. Ki sa m ap fè mal?

Accepted Answer

The issue is a stale closure. Move the fetch into a function and include a cleanup flag:

```js
useEffect(() => {
  let alive = true;
  fetch('/api/items')
    .then(r => r.json())
    .then(d => { if (alive) setItems(d); });
  return () => { alive = false; };
}, []);
```

If `items` is still empty, check the Network tab — the endpoint may be returning `{ data: [...] }` rather than an array.

1 Answer