Support promise based queryFn function

[nitedani]

Which @ngneat/query-* package(s) are relevant/releated to the feature request?

query

Description

I would like to use a basic async function as the queryFn.

For example this one:

export const getPets = async () => {
  const response = await fetch('https://pokeapi.co/api/v2/pokemon');
  const json: {
    results: { name: string; url: string }[];
  } = await response.json();

  return json;
};

Proposed solution

Add the extra types for all of the exported functions, so they will accept basic async functions where they can, instead of only supporting observables. Check if the queryFn returns a promise or observable. If it returns a promise, then use that/wrap it with from.

Alternatives considered

Wrapping every promise in from, but I would like cleaner code.

Do you want to create a pull request?

No

[NetanelBasal]

Most Angular developers work with the HTTP client, which returns an observable, so I think it's not more than "nice to have".

[marcinmajkowski]

I like the suggestion, since Angular also allow Promise where Observable can be used. See ResolveFn, AsyncValidator, APP_INITIALIZER and AsyncPipe.