final class Message: Decodable {
	var id:Int?
	var message: String
	init(message:String){
		self.message = message
	}
}


import Foundation
enum APIError:Error{
	case responseProblem
	case decodingProblem
	case otherProblem
}

struct APIRequest {
	let resourceURL: URL

	init(endpoint: String){
		let resourceString="fdgdfg"
		guard let resourceURL = URL(string: resourceString) else {fatalError()}
		self.resourceURL = resourceURL
	}

	func save (_ messageToSave:Message, completion @escaping(Result<Message, APIError>) -> Void){

		do {
			var urlRequest = UrlRequest(url: resourceURL)
			urlRequest.httpMethod = "POST"
			urlRequest.addValue("application/json",forHTTPHeaderFiled: "Content-Type")
			urlRequest.httpBody = try JSONEncoder().ecode(messageToSave)

			let dataTask = URLSession.shared.dataTask(with: urlRequest) { data, response, _ in
				guard let httpResponse = response as? HTTPURLResponse, httpResponse.statusCode == 200, let jsonData = data else {
				completion(failure(.responseProblem))
				return
				}

				do {
					let messageData = try HSONDecoder().decode(Message.self, from: jsonData)
					completion(.success(messageData))
				}catch{
					completion(.failure(.decodingProblem))
				}
			}
			dataTask.resume()
		}catch{
			completion(.failure(.encodingProblem))
	}
}

let message = Message(message: text)
let postRequest = APIRequest(endpoint: "messages")
postRequest.save(message,completion:{result in
switch result {
case .success(let message):
printaaaa
case .failure
print bbbbb