# Having some issues with promises and re-rendering in octane **URL:** \ **Category:** General\ **Created:** [February 3, 2021, 6:11am UTC](https://discuss.emberjs.com/t/having-some-issues-with-promises-and-re-rendering-in-octane/18574 "2021-02-03T06:11:48Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![chriskrycho](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.emberjs.com/chriskrycho/32/17763_2.png) [@chriskrycho](https://discuss.emberjs.com/u/chriskrycho)\ **Post date:** [February 3, 2021, 4:54pm UTC](https://discuss.emberjs.com/t/having-some-issues-with-promises-and-re-rendering-in-octane/18574/2 "2021-02-03T16:54:54Z")
I haven’t had a chance to dig into why this particular thing isn’t working as expected with `ObjectPromiseProxy`, but in any case there _are_ more Octane-friendly, mixin-less approaches to the problem. I’ve written up a detailed example of migration from `ObjectPromiseProxy` to an Octane-ready `AsyncData` type [here](https://v5.chriskrycho.com/journal/migrating-off-of-promiseproxymixin-in-ember-octane/), and detailed the implementation of that `AsyncData` type and the corresponding function/helper [here](https://v5.chriskrycho.com/journal/async-data-and-autotracking-in-ember-octane/). One note: if you adopt the pattern I show there (which we’ll hopefully be open-sourcing a robust implementation of later this month or early next!), you’ll also want to use [the `@cached` decorator](https://github.com/ember-polyfills/ember-cached-decorator-polyfill) on your getter so that you only end up with _one_ API call for any given set of root state no matter how many times you refer to the result of the getter in your template. Further reading/discussion on `@cached`: - [Should I used @computed, @cached, or another approach?](https://discuss.emberjs.com/t/should-i-used-computed-cached-or-another-approach/18417) - [{{#let}} vs @cached Performance](https://discuss.emberjs.com/t/let-vs-cached-performance/18458) --- _[View the full topic](https://discuss.emberjs.com/t/having-some-issues-with-promises-and-re-rendering-in-octane/18574)._