MapleBacon | 🍁🥓 Lightweight and fast Swift library | DevOps library

First, you need to map a UIImage to a UIImage?. The sensible way to do this is of course to wrap each element in an optional.

Then, you try to turn a publisher that sometimes produces errors to a publisher that Never produces errors. You replaceError(with:) an element of your choice. What element should you replace errors with? The natural answer, since your publisher now publishes optional images, is nil! Of course, assertNoFailure works syntactically too, but you might be downloading an image here, so errors are very likely to happen...

Finally, we need to turn this into an AnyPublisher by doing eraseToAnyPublisher