Simple Swift Post Request using Task and Alamofire

Simple Swift Post Request using Task

you need to use the following in your controller
import UIKit
import ObjectMapper
import SwiftyJSON
import Alamofire

    func postToServer(userID : Int) {
        let headers = [
            "\(GlobalConstants.ApiKey)": "\(GlobalConstants.ApiKeyValue)",
            "Accept": "*/*",
            "Cache-Control": "no-cache",
            "Host": "example.com",
            "accept-encoding": "gzip, deflate",
            "Connection": "keep-alive",
            "cache-control": "no-cache"
        ]
     
 let endpoint = "\(GlobalConstants.get_messages)"
 let postString = "user_id=\(userID)";
      let endpointUrl = URL(string: endpoint)
        do {

            var request = URLRequest(url: endpointUrl!)
            request.httpMethod = "POST"
            request.httpBody = postString.data(using: String.Encoding.utf8);
            request.allHTTPHeaderFields = headers
            let task = URLSession.shared.dataTask(with: request){ (data, response, error) in
                if let error = error {
                    print("error: \(error)")
                } else {
                    if let response = response as? HTTPURLResponse {
                        print("statusCode: \(response.statusCode)")
                    }
                    

                  
                    if let data = data, let dataString = String(data: data, encoding: .utf8) {
                        
                        print("data: \(dataString)")
                      //
                          do {
                            
                    
                            let jsonResult = try JSONSerialization.jsonObject(with: data, options: JSONSerialization.ReadingOptions.mutableContainers) as! [String:Any]
                           
 
                          } catch let parseError as NSError {
                            print("JSON Error \(parseError.localizedDescription)")
                        }
                    }
                }
                    
                
            }
            task.resume()
            
            
        }catch{
        }

    }
    


}

Also you could use Alamofire to return response string

    func getMessages(userID : Int) {

     
 let endpoint = "\(GlobalConstants.get_messages)"

      let endpointUrl = URL(string: endpoint)

   

            
           // view.showHUD(view)
            

          
            
            
            let url = endpointUrl!
        var _id :  NSString = NSString(string: "\(userID)")
            print(url)
            let parameters : [String : NSString] = [
                "user_id":   _id]
            let headers    = [ "\(GlobalConstants.ApiKey)": "\(GlobalConstants.ApiKeyValue)"]
            
            
            Alamofire.request(url, method: .post, parameters: parameters, headers: headers).responseString{ response in
                
         
                
                
             //   debugPrint(response)
                
                switch response.result {
                case .success:
                    print(response.response?.statusCode)
                    print(response.result.value!)
                case .failure:
                   print("\(response.error)")
                }
                
                
         
                
                    
            }
            
            
       
 

    
        
    }

or you could return response as json

    func getMessages(userID : Int) {

     
 let endpoint = "\(GlobalConstants.get_messages)"

      let endpointUrl = URL(string: endpoint)

   

            
           // view.showHUD(view)
            

          
            
            
            let url = endpointUrl!
        var _id :  NSString = NSString(string: "\(userID)")
            print(url)
            let parameters : [String : NSString] = [
                "user_id":   _id]
            let headers    = [ "\(GlobalConstants.ApiKey)": "\(GlobalConstants.ApiKeyValue)"]
            
            
            Alamofire.request(url, method: .post, parameters: parameters, headers: headers).responseJSON() { response in
                
         
                
                
             //   debugPrint(response)
                
                switch response.result {
                case .success:
                    print(response.response?.statusCode)
                    print(response.result.value!)
                    
                    let json = JSON(response.result.value)
                    
                    let dictionaryPost = NSMutableDictionary()
                    
                    if let id = json["uid"].int {
                        dictionaryPost.setValue(id, forKey: "uid")
                        print("here here \(id)")
                    }
                    
                case .failure:
                   print("\(response.error)")
                }
                
                
         
                
                    
            }
            
            
       
 

    
        
    }
    
    /*
    // MARK: - Navigation

    // In a storyboard-based application, you will often want to do a little preparation before navigation
    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        // Get the new view controller using segue.destination.
        // Pass the selected object to the new view controller.
    }
    */

}