TypeScript · correctness

require-fetch-timeout

eslint:require-fetch-timeout

Require an abort `signal` (e.g. `AbortSignal.timeout(ms)`) on global `fetch()` calls so stalled upstreams cannot hang the caller forever.

Default: error
Fix: none
Languages: typescript

Why

An unbounded request can occupy work indefinitely when an upstream stalls.

Fix

Pass an abort signal, such as `AbortSignal.timeout(ms)`, in the fetch init.

Before / after

Executed by this rule’s unit tests.

Before

Do not leave fetch unbounded

src/client.ts · focus

await fetch('https://api.example.com/items');

After

Bound the request

src/client.ts · focus

await fetch(url, { signal: AbortSignal.timeout(5000) });

Message IDs

missingSignal

Options

{
  "additionalProperties": false,
  "properties": {
    "allowIn": {
      "description": "Glob patterns for wrapper modules exempt from the rule. Matched against the ABSOLUTE file path, so anchor with a `**/` prefix (e.g. `**/http-client.ts`).",
      "items": {
        "type": "string"
      },
      "type": "array"
    }
  },
  "type": "object"
}