Read only CurrentValueSubject?

Question

Is there a way to create a CurrentValueSubject that is read-only?

So you could sink it publicly, read value publicly, but could only send values to it internally/privately. Want to use it in a library module.

Answer 1

The best pattern is to have it declared private:

private let _status = CurrentValueSubject<ThisStatus?, Never>(nil)

and expose it through a computed property:

public var status: AnyPublisher<ThisStatus?, Never> {
    _status
        .eraseToAnyPublisher()
}