igor-reducers-user.js

const USER_SET = 'USER_SET';
const USER_SET_STATE = 'USER_SET_STATE';

const initialState = {
    user: {},
    loading: false
};

export default (state = initialState, action = {}) => {
    switch (action.type) {
        case USER_SET:
            return { ...state, user: action.data };
        case USER_SET_STATE:
            return { ...state, loading: action.state };
        default:
            return state;
    }
}