I'm implementing autocomplete right now using apollo-link-rest. Everytime the search term changes, apollo client (useQuery) will kick off a new request. However, I don't want to have my server keep doing expensive search ranking for a result that I'm going to ignore so I'd like to cancel the request.

maybe something like?

const MyComponent  = () => {
  const abortController = useRef(new AbortController());
  const [searchTerm, setSearchTerm] = useState("");
  useEffect(() => {
    abortController.current.abort()
    abortController.current = new AbortController()
  }, [searchTerm])

  const { error, loading, data } = useQuery(SearchQuery, {
    variables: { searchTerm }
    context: { fetchOptions: { signal: abortController.current.signal } }
  })
}

All you really have to do is grab this fetchOptions field from context and make it available in requestOptions and everything should workout correctly