Alamofire - SwiftyJSON Wrapper

AFWrapper.swift

//
//  AFWrapper.swift
//  AFSwiftDemo
//
//  Created by Ashish on 10/4/16.
//  Copyright © 2016 Ashish Kakkad. All rights reserved.
//

import UIKit
import Alamofire
import SwiftyJSON

class AFWrapper: NSObject {
    class func requestGETURL(_ strURL: String, success:@escaping (JSON) -> Void, failure:@escaping (Error) -> Void) {
        Alamofire.request(strURL).responseJSON { (responseObject) -> Void in
            
            print(responseObject)
            
            if responseObject.result.isSuccess {
                let resJson = JSON(responseObject.result.value!)
                success(resJson)
            }
            if responseObject.result.isFailure {
                let error : Error = responseObject.result.error!
                failure(error)
            }
        }
    }
    
    class func requestPOSTURL(_ strURL : String, params : [String : AnyObject]?, headers : [String : String]?, success:@escaping (JSON) -> Void, failure:@escaping (Error) -> Void){
        
        Alamofire.request(strURL, method: .post, parameters: params, encoding: JSONEncoding.default, headers: headers).responseJSON { (responseObject) -> Void in
            
            print(responseObject)
            
            if responseObject.result.isSuccess {
                let resJson = JSON(responseObject.result.value!)
                success(resJson)
            }
            if responseObject.result.isFailure {
                let error : Error = responseObject.result.error!
                failure(error)
            }
        }
    }
}

Alamofire 4.0 Update - Swift 3

Ashish, thanks for this. Im relatively new to swift and am having trouble grasping the concept of closures, specially escaping closures; can you please put in an explanation of how this class func will be called?

Are there any example of use? Handling the success and failure async was the problem for me.

Helped me a lot . thanks for this one ,
if someone having issues how to use this just follow the steps below .
swift 4.
import the necessary packages. // SwiftyJSON
enum apiResult{
case sucess
case error
}
`class FetchAPI {
static func getAPI(completion:@escaping (apiResult)->()){
AFWrapper.requestGETURL(url, success: { (JSON) -> Void in
DispatchQueue.global(qos: .userInteractive).async
{
// Background Thread , Save Data Here

                    DispatchQueue.main.async
                        {
                            completionHandler(.sucess)//Main UI Thread ,  Reload your view
                            
                    }
                    
            }
            
        }, failure: { (Error)->Void  in
            print(Error)
            completionHandler(.error)
        })

}

}`

now you can call above class in your ViewController

Eg.

override func viewWillAppear(_animated:Bool)
{
FetchAPI. getAPI{ (result) in
switch result{
case .sucess:
// reload your tableview, collection view
case .error:
//show an error here
}
}
}