A simple network manager class with URL Session to get, post, put, and delete data on the server in swift language.

How to use NetworkManager.swift

Create NetworkManager.swift class instance in your ViewControler.swift class.

  let networkManager = NetworkManager()

Create your URL request and call request method with your URL request.

  do {
      let request = try Router.all.requestURL()
      networkManager.request(request) { (result: Result<[Country], Error>) in
        switch result {
        case .success(let countries):
            print("Number of Countries: ", countries.count)
        case .failure(let error):
            if let error = error as? NetworkError {
                let message = ErrorMapper(error: error).message
                    print(message)
                } else {
                    print(error)
                }
            }
       }        
    } catch {
        print("Error: \(error)")
    }