How to add thunk with getDefaultMiddleware and custom middleware

[DeepikaSharma5]

import {configureStore} from '@reduxjs/toolkit';
import {createEpicMiddleware} from 'redux-observable';
import {rootEpic} from '../epics';
import {rootReducer} from '../reducer';

const epicMiddleware = createEpicMiddleware();

export const store = configureStore({
  reducer: rootReducer,
  middleware: getDefaultMiddleware =>
    getDefaultMiddleware({
      thunk: true,
      serializableCheck: false,
      immutableCheck: false,
    }).concat(epicMiddleware),
});

epicMiddleware.run(rootEpic);

export type AppDispatch = typeof store.dispatch;
export type RootState = ReturnType<typeof store.getState>;

This is my current store configuration. But I am getting error as Error: Actions must be plain objects. Instead, the actual type was: 'array'. You may need to add middleware to your store setup to handle dispatching other values, such as 'redux-thunk' to handle dispatching functions. See https://redux.js.org/tutorials/fundamentals/part-4-store#middleware and https://redux.js.org/tutorials/fundamentals/part-6-async-logic#using-the-redux-thunk-middleware for examples., js engine: hermes

So I tried to add redux-thunk, but still don't know how to configure. Can anyone help me with please.

[EskiMojo14]

your store setup is fine (also thunk: true is the default value so you can remove it). based on the error message you seem to be dispatching an array instead of an action, and none of your middleware/enhancers are intercepting it before it reaches your reducers.

https://github.com/reduxjs/redux/blob/ba472102578f0967f79b61d3798c193bca75f22e/src/createStore.ts#L280-L287

[DeepikaSharma5]

Does that means, I can's pass like this in reducers =>

case customerTypes.SET_CUSTOMER_SESSION_DETAILS:
      return {
        ...state,
        isFetching: false,
        sessionDetails: {
          sessionId: action.payload,
          nonce: GCM.getNonceValue(),
      },
};

[EskiMojo14]

dispatch({ type: myType, payload: [] }) fine

dispatch([]) not fine