URLSession extension using Result.swift

public extension URLSession {
    typealias DataTaskResult = Result<(data: Data, response: URLResponse), Error>
    typealias DataTaskResultCompletion = (DataTaskResult) -> Void

    func dataTask(
        with url: URL,
        completion: @escaping DataTaskResultCompletion
    ) -> URLSessionDataTask {
        dataTask(with: url) { (data, response, error) in
            if let error = error {
                completion(.failure(error))
            } else if let data = data, let response = response {
                completion(.success((data: data, response: response)))
            }
        }
    }
}

// then ... we can do something like:
URLSession.shared
    .dataTask(with: url) { result in
        // ...
    }