F_A_8_Test_app/src/reducers/auth/signIn/index.js

import * as types from "../../../constants";
import initialState from './../../initialState';

export default function signIn(state = initialState.signIn, {type, payload: user, error}) {
    switch (type) {
        case types.SIGN_IN_REQUEST: {
            return {
                ...state,
                isFetching: true
            }
        }
        case types.SIGN_IN_REQUEST_SUCCESS: {
            return {
                ...state,
                user,
                isFetching: false
            }
        }
        case types.SIGN_IN_REQUEST_FAILURE: {
            return {
                ...state,
                error,
                isFetching: false
            }
        }
        case types.USER_IS_SIGNED_IN: {
            return {
                ...state,
                user
            }
        }
        case types.USER_IS_NOT_SIGNED_IN: {
            return {
                ...state,
                user: null
            }
        }
        default: {
            return state
        }
    }
}