Problem Statement
What is Redux middleware and what problems does it solve?
Explanation
Redux middleware provides a third-party extension point between dispatching an action and the moment it reaches the reducer, allowing you to handle side effects, async logic, logging, crash reporting, or modify actions before they reach reducers. Middleware solves the problem that reducers must be pure functions and cannot handle asynchronous operations or side effects, so middleware intercepts actions and can perform async operations, dispatch multiple actions, or transform actions before passing them along. Popular middleware includes Redux Thunk for async logic, Redux Saga for complex side effects, and redux-logger for debugging.
