Safe errors

Use a safe method for an explicit result instead of a thrown request error.

import { Http, problem } from "fetchzen";
const api = Http.create(`${location.origin}/api/examples/`, {
  cache: false, secure: false, preset: problem,
});
const { data, error } = await api.safe.get("status", {
  params: { code: "422" }, retry: 0,
});
if (error) console.error(error);
else console.log(data);

Try this requestSafe failure

Request parameters

Only Run sends a request to this site's demo API. Use synthetic data only; do not send secrets or personal files. Uploads are counted, not stored.

Run Cancel

Ready. No request sent.

Result

Choose Run to see the response.

Event log

No events yet.

What to notice

This site’s demo endpoint deliberately returns 422, 429 or 503; it does not retry. problem reads RFC 9457 error details. On failure, inspect error; on success, data contains the preset-shaped response. Replace the demo base URL with your API for real usage.

Next: safe request or retries.