Example of aborting fetch with an AbortController and CancellationToken

[kjvalencik]

Example of adapting a JavaScript AbortController to a tokio CancellationToken.

TODO: Include docs on how this works.

Usage

# default 1s timeout
$ node test.js
2026-03-03

# short timeout
$ node test.js 10
[Error: Request aborted]

[vadimpiven]

Maybe this should be

async function callAbortable<T>(
  callback: (token: CancellationToken) => Promise<T>,
  signal: AbortSignal,
): Promise<T> {
  const token = new CancellationToken();
  const abort = () => token.cancel();
  try {
    signal.addEventListener('abort', abort, { once: true });
    signal.throwIfAborted();
    return await callback(token);
  } finally {
    signal.removeEventListener('abort', abort);
  }
}

async function main() {
  const version = process.version;
  const date = await callAbortable(
    (token) => nodeReleaseDateWithAbort(version, token),
    AbortSignal.timeout(timeout),
  );
  console.log(date);
}

to avoid calling addon if the signal is already aborted and clean-up listener to avoid memory leaks