$ pod install MHNetwork

pod 'MHNetwork'

import Foundation
import MHNetwork

enum MoviesRequests: Request {
    case getMoviesList

    var path: String {
        return "movies/list/"
    }

    var method: HTTPMethod {
        switch self {
        case .getRandomQuote:
            return .get
        }
    }

    var parameters: RequestParams {
        return .url(["year" : "2018"])
        // can use .body(["year": "20018"]) if the api require body parameters
    }

    var headers: [String : Any]? {
        return ["Authorization": "xyz"]
    }
}

class MovieTasks <T: Codable>: Operations {

    var request: Request {
        return MoviesRequests.getMoviesList
    }

    func execute(in dispatcher: Dispatcher, completed: @escaping (Result<T, NetworkError>) -> Void) {

        do {
            try dispatcher.execute(request: self.request, completion: { (result) in
               switch result {
                               case .success(let response):
                                   switch response {
                                       case .data(let data):
                                           do {

                        let decoder = JSONDecoder()
                        //                        decoder.keyDecodingStrategy = .convertFromSnakeCase
                        //                        uncomment this in case you have some json properties in Snake Case and you just want to decode it to camel Case... workes only for swift 4.1 or higher
                        let object = try decoder.decode(T.self, from: data)
                                               completed(.success(object))
                                           } catch let error {
                                               print("error Parsing with Error: \(error.localizedDescription)")
                                           }
                                           break
                                       case .error(let error):
                                           completed(.failure(error))
                                           break
                                       }
                               case .failure(let error):
                                   completed(.failure(error))
                               }
            })
        } catch {
          completed(.failure(.error(code: nil, error: error, data: nil)))
        }
    }
}

func getMoviesList(onComplete: @escaping (Movie) -> Void, onError: @escaping (Error) -> Void) {
    let environment = Environment(host: "https://imdb.com/api")
    let networkDispatcher = NetworkDispatcher(environment: environment, session: URLSession(configuration: .default))
    let moviesTask = MoviesTasks<Movie>() // Movie Model should be codable
    moviesTask.execute(in: networkDispatcher) { (result) in
          switch result {
            case .success(let users):
                onCompletion(movies)
            case .failure(let error):
                onError(error)
            }
         })
}