Is dispatch method necessary?

Tell us what’s happening:
I have a doubt. The following code works correctly. But I don’t understand how the action argument gets the values from the defined actions, in the reducer method. I would need to use the dispatch method, wouldn’t I?

Your code so far

const defaultState = {
authenticated: false

const authReducer = (state = defaultState, action) => {
// change code below this line
switch (action.type) {
  case 'LOGIN':
    return {authenticated: true};
  case 'LOGOUT':
    return {authenticated: false};
    return state;
// change code above this line

const store = Redux.createStore(authReducer);

const loginUser = () => {
return {
  type: 'LOGIN'

const logoutUser = () => {
return {
  type: 'LOGOUT'

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Challenge: Use a Switch Statement to Handle Multiple Actions

Link to the challenge: