According to the docs, redux-saga is a library that aims to make application side effects (i.e. asynchronous things like data fetching and impure things like accessing the browser cache) easier to manage, more efficient to execute, simple to test, and better at handling failures.
Why You Should Use Redux Saga
Redux is a predictable state container for JavaScript apps. It’s a popular library to manage state in React apps. Redux maintains the state of an entire application in a single immutable state tree (object), which can’t be changed directly. When something changes, a new object is created (using actions and reducers).
Benefits Of Redux
