After defining the action types, we need to define the actions themselves. In doing so, we are going to define the functions that will return the action objects. These functions are called action creators, of which there are two types:

• Synchronous action creators: These simply return an action object
• Asynchronous action creators: These return an async function, which will later dispatch an action

We are going to start by defining synchronous action creators, then we are going to learn how to define asynchronous action creators.