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React Redux Toolkit: Is it okay to write to localStorage in createSlices "reducers" parameter?

Hatahle

I'm implementing a simple favorites list. Currently there's no backend part so it will be persisted in localStorage. In the future it may become an API call. Is it okay to call:

localStorage.setItem localStorage.getItem

from within a rtk slice?

for example:

createSlice({
  name: "slice",
  initialState,
  extraReducers: extraReducers,
  reducers: {
    setLocalStorageThing: (
      state,
      action: PayloadAction<{ payload: string }>
    ) => {
      let localStoragething= JSON.parse(
        localStorage.getItem("key")
      );
      if (localStorageThing !== payload) {
        localStorage.setItem(
          "key",
          JSON.stringify(payload)
        );
      }
    },
 }

Alternatively, is this possible as a thunk? Ultimately I'd like to be able to use the useSelector hook to access this information, so when/if the swap happens I only have to change the action/reducer in the slice. This seems like a side effect, but I'm not sure the harm in it. It has already been done else where in the code without issue (so far).

Thanks!