Redux Toolkit state doesn't update even after adding extraReducers - redux-toolkit

Question

I have a very limited understanding of the redux toolkit compared to its previous version. I am struggling to understand why isn't my state getting updated on the trigger of getUsers.
I have added the extraReducers as well.
import { createAsyncThunk, createSlice } from '#reduxjs/toolkit';
import { fetchSample } from './filterAPI';
export const getUsers = createAsyncThunk(
'primaryFilters/getUsers',
async (dispatch, getState) => {
console.log(getState, dispatch);
const response = await fetchSample();
return response;
}
);
const primaryFiltersSlice = createSlice({
name: 'primaryFilters',
initialState: {
dateFilter: {
dates: {
key: 'selection',
startDate: new Date(),
endDate: new Date(),
},
dummyData: null,
},
status: null,
},
extraReducers: (builder) => {
builder
.addCase(getUsers.pending, (state) => {
state.status = 'loading';
})
.addCase(getUsers.fulfilled, (state, action) => {
state.status = 'idle';
state.dummyData = action.payload;
})
.addCase(getUsers.rejected, (state, action) => {
state.status = 'failed';
});
},
});
export default primaryFiltersSlice.reducer;
Here's fetchSample function:
export const fetchSample = async () => {
const response = await fetch('https://jsonplaceholder.typicode.com/todos/1');
return response.json();
};
Additionally, I want to point out that my status is triggering from pending to idle and so on but my actual state isn't updating.
Here's the screenshot for the same:
I would also like to know how can we log the messages within those extraReducers.

Answer 1

For one, looking at your data structure, you probably want to update state.dateFilter.dummyData, not state.dummyData - at least assuming you want to match your initialState structure.
Also, createAsyncThunk does not take a callback dispatch, getState:
correct would be
export const getUsers = createAsyncThunk(
'primaryFilters/getUsers',
async (arg, {dispatch, getState}) => {
(but that does not make a difference here since you are using neither)
As for logging... just console.log? Or do you mean you are getting a Proxz object? In that case console.log(current(state))

Answer 2

For some reason, I am able to dispatch actions by keeping the status update at the bottom instead of the top. I would love to have a better explanation for the same, here's what exactly fixed my code:
import { createAsyncThunk, createSlice } from '#reduxjs/toolkit';
import { fetchSample } from './filterAPI';
export const getUsers = createAsyncThunk(
'primaryFilters/getUsers',
async (dispatch, getState) => {
console.log(getState, dispatch);
const response = await fetchSample();
return response;
}
);
// export const updateDates = () => {
// }
const primaryFiltersSlice = createSlice({
name: 'primaryFilters',
initialState: {
dateFilter: {
dates: {
key: 'selection',
startDate: new Date(),
endDate: new Date(),
},
dummyData: null,
},
status: null,
},
reducer: {
updateDate: (state, action) => {
console.log('Actions = ', action);
},
},
extraReducers: (builder) => {
builder
.addCase(getUsers.pending, (state) => {
state.status = 'loading';
})
.addCase(getUsers.fulfilled, (state, action) => {
state.dummyData = action.payload;
state.status = 'idle';
})
.addCase(getUsers.rejected, (state, action) => {
state.status = 'failed';
});
},
});
export default primaryFiltersSlice.reducer;