BaseQueryEnhancer is dropping types of FetchBaseQuery?

[msutkowski]

Need to investigate, but it appears that BaseQueryEnhancer is dropping the types of what's passed into it.

Current workaround is to:

const isBaseQueryError = (
    result: any
  ): result is { error: FetchBaseQueryError } => 'error' in result;

  if (isBaseQueryError(result)) {
    if (result.error.status === 401) {
      api.dispatch(logoutUser());
    }
  }

[msutkowski]

Adding notes here for posterity before adding docs to the site. If you find that your error type is unknown when using hooks, this applies to you.

This can be solved by:

const baseQuery = retry(otherEnhancer(fetchBaseQuery({ baseUrl: 'http://example.com/' })));`
const api = createApi({ baseQuery, endpoints: () => ({}) });