Processing URL Session Data Task Results with Combine

URLSession_DataTaskPublisher.swift

// https://developer.apple.com/documentation/foundation/urlsession/processing_url_session_data_task_results_with_combine
import Foundation
import Combine

let cancellable = URLSession.shared
   .dataTaskPublisher(for: URL(string: "https://jsonplaceholder.typicode.com/users")!)
   .tryMap() { element -> Data in
      guard let httpResponse = element.response as? HTTPURLResponse,
         httpResponse.statusCode == 200 else {
            throw URLError(.badServerResponse)
      }
      return element.data
}
.decode(type: UsersList.self, decoder: JSONDecoder())
.sink(receiveCompletion: { print ("Received completion: \($0).") },
      receiveValue: { userslist in
         for userlist in userslist {
            print(userlist)
         }
})

struct UsersListElement: Codable {
   let id: Int
   let name, username, email: String
   let address: Address
   let phone, website: String
   let company: Company
}

struct Address: Codable {
   let street, suite, city, zipcode: String
   let geo: Geo
}

struct Geo: Codable {
   let lat, lng: String
}

struct Company: Codable {
   let name, catchPhrase, bs: String
}

typealias UsersList = [UsersListElement]