How do I set up Redux Observable in my React app?

How do I set up Redux Observable in my React app?

To set up Redux Observable, first install the necessary packages: redux, redux-observable, and rxjs. You can do this using npm or yarn.

What are the main steps after installing the packages?

After installation, you'll need to create an epic, configure the middleware, and integrate it into your Redux store.

Can you give me an example of an epic?

Sure! An epic is a function that takes a stream of actions and returns a stream of actions. For example:

const myEpic = action$ => action$.pipe(
  ofType('FETCH_DATA'),
  mergeMap(action => ajax.getJSON('/api/data')
    .pipe(
      map(response => ({ type: 'FETCH_DATA_SUCCESS', payload: response })),
      catchError(() => of({ type: 'FETCH_DATA_ERROR' }))
    ))
);