Does setting the TTL automatically set the cache status to none?

[subprime]

Hi,

I'm currently trying to introduce elf cache mechanism with TTL and wondering why the cache status is not set to 'none' after the TTL period. I need to implement a periodically update of values after the TTL is expired. In my opinion the cache status after expiration should be set to 'none' and with const isCached$ = store.pipe(selectIsRequestCached('todos' I can trigger an update of the values.

I think the best way to focus our problem is with an example.

First, we define the store with the following code:

interface Todo {
  id: number;
  label: string;
}


const todosStore = createStore(
  { name: 'todos' },
  withEntities<Todo>(),
  // You can pass the keys type
  withRequestsCache<'todos'>()
);

export const skipWhileTodosCached = createRequestsCacheOperator(todosStore);

Next, we define the data that we want to save:

let todos: { id: number, label: string }[] = [
      { "id": 0, "label": "Available" },
      { "id": 1, "label": "Ready" },
      { "id": 2, "label": "Started" }
  ];

Since we don't want to wait too long to see the result, we define the ttl with a value of 10 seconds:
private readonly TTL = 10000;

Next we update the data in the store

todosStore.update(
      updateRequestCache('todos', { ttl: 10000 }),
      setEntities(todos)
    );

In order to see the changes in the state, we print it to the console:

todosStore
      .pipe(selectRequestCache('todos'))
      .subscribe((cacheStatus: { value: string }) => {
        console.log('Cache status changed to: ' + cacheStatus.value);
      });

As you can see, the data is stored correctly in the store:

but the defined ttl does not have the expected effect:

Can someone help me or tell me if this behavior could be a bug?

Thanks a lot!

[NetanelBasal]

Any reason you're still using selectIsRequestCached and not https://ngneat.github.io/elf/docs/features/requests-result?

[subprime]

Hi, thanks for the replay, but it's not cover my problem. I will try it again in the original question.