1 Reply
      Latest reply on Jul 10, 2019 2:02 AM by Claude31
      Gargoyle Level 2 Level 2 (70 points)

        I'm trying to wrap my head around Combine still, and so in my class that handles web requests I've written this method:


        static func downloadNumbersPublisher(datesByType: [LottoType: (start: Date, end: Date)]) -> URLSession.DataTaskPublisher {
            guard let url = downloadUrl(using: datesByType) else { return }
            var request = URLRequest(url: url)
            request.addValue("gzip", forHTTPHeaderField: "Accept-Encoding")
            let session = URLSession(configuration: .ephemeral)
            return session.dataTaskPublisher(for: request)


        What I'm not clear on though is what I actually return on line 2, the guard statement.