how to convert Observable<List<A>>to Flowable<A>

Issue

I tried to convert Observable<List<A>> to Flowable<A> in RxJava, however it doesn't work.

return  resource.flatMap(
    new Function<Observable<List<Product>>, List<Product>>() {
      @Override
      public List<Product> apply(Observable<List<Product>> products) throws Exception {
        return (List<Product>) products;
      }
    }).toFlowable(BackpressureStrategy.BUFFER)

Solution

You need flatMapIterable:

return resource.flatMapIterable(list -> list)
               .toFlowable(BackpressureStrategy.BUFFER)

Answered By - akarnokd