javascript - Why do we need middleware for async flow in Redux? - Stack Overflow

According to the docs, "Without middleware, Redux store only supports synchronous data flow". I don't understand why this is the case. Why can't the container component call the async API, and then dispatch the actions? For example, imagine a simple UI: a field and a button. When user pushes the button, the field gets populated with data from a remote server. import * as React from 'react'; import