Setup for config in persistState

Hi, I’m struggling to figure out how to select a subset of what config needs to look like with keys/values inside of persistState. There are code snippets but it’s a little difficult to piece them together and figure out what is needed to just select a subset of fields to sync to localStorage. Would you be able to elaborate more on how to accomplish this? My state currently looks like below.

{
  key1: {},
  key2: {
    innerKey1: [],
    innerKey2: [],
    innerKey3: null
  }
}

If I wanted to select innerKey1 here, how would I go about that?

// Pseudocode
compose(
  applyMiddleware(thunk),
  persistState('key2', /* config_to_access_innerKey1 */)
);

[Petesta]

Here’s how it needs to be done.

function customSlicer() {
  return (state) => {
    const { auth } = state;
    return { auth };
  }
}

compose(
  applyMiddleware(thunk),
  persistState(null, { slicer: myCustomSlicer() })
);

[cyberpolin]

Any one is getting TypeError: Object(...) is not a function