Publisher+Sink.swift

import Foundation
import Combine

extension Publisher {
    
    @discardableResult
    public func sink(receiveValue: @escaping ((Self.Output) -> Void)) -> AnyCancellable {
        
        sink(receiveCompletion: {
            switch $0 {
            case let .failure(error):
                Swift.print(error)
            case .finished: break
            }
        }, receiveValue: receiveValue)
    }
}

URLSession+Publisher.swift

import Foundation
import Combine

extension URLSession {
    
    @discardableResult
    func dataTaskPublisher<Response: Decodable>(for request: URLRequest, type: Response.Type) -> AnyPublisher<Response, Error> {
        
       dataTaskPublisher(for: request)
            .map { $0.data }
            .decode(type: Response.self, decoder: JSONDecoder())
            .receive(on: DispatchQueue.main)
            .eraseToAnyPublisher()
    }
}