.

Accordingly, when should I use Redux with react?

When using Redux with React, states will no longer need to be lifted up; thus, it makes it easier for you to trace which action causes any change. As seen above, the component does not need to provide any state or method for its children components to share data among themselves. Everything is handled by Redux.

Furthermore, why do we use Redux? Redux is used mostly for application state management. To summarize it, 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).

Beside above, do I really need redux?

Redux is a good fit for a small applications – it actually doesn't require a lot of boiler code, but gives much. Redux is a good fit for a huge application, as long you control every part, you can test and reuse every part.

Is Redux frontend or backend?

Pure Redux is for javascript apps, not only for the frontend. In the backend, the Node environment, it runs well if you need it. Its core pattern is subscription, some modules alter the state, some modules listen for the changes and react to them.