How to make model class for following JSON response in swift iOS

Question

Hi i am beginner for swift ios and my requirement is have to display Json response to table list i got response from web-services and response seems like below

MY requirement is how to map that model classes to Array and how to display them in tableList can some one help me please

JsonResponse:-

[{
  "_id" : "5470def9e0c0be27780121d7",
  "imageUrl" : "https:\/\/s3-eu-west-1.amazonaws.com\/api-static\/clubs\/5470def9e0c0be27780121d7_180.png",
  "name" : "Mondo",
  "hasVip" : false,
  "location" : {
    "city" : "Madrid"
  }
}, {
  "_id" : "540b2ff281b30f3504a1c72f",
  "imageUrl" : "https:\/\/s3-eu-west-1.amazonaws.com\/api-static\/clubs\/540b2ff281b30f3504a1c72f_180.png",
  "name" : "Teatro Kapital",
  "hasVippler" : false,
  "location" : {
    "address" : "Atocha, 125",
    "city" : "Madrid"
  }
}, {
  "_id" : "540cd44581b30f3504a1c73b",
  "imageUrl" : "https:\/\/s3-eu-west-1.amazonaws.com\/api-static\/clubs\/540cd44581b30f3504a1c73b_180.png",
  "name" : "Charada",
  "hasVippler" : false,
  "location" : {
    "address" : "La Bola, 13",
    "city" : "Madrid"
  }
}]

mapping:

Club:-

class Club { 

    var id: String = ""
    var name: String = ""
    var imageUrl: String = ""
    var hasVip: Bool = false
    var desc: String = ""
    var location: [Location] = []

}

Location:-

class Location {

    var country: String = ""
    var city: String = ""
    var address: String = ""
    var zip: String = ""
    var underground: [String] = []

}

NSURlSession code:-

class BackGroundPostCall: NSObject {

    var delegate:PostProtocol?

    func callPostService(url:String,params:NSDictionary){

        print("url is===>\(url)")

        let request = NSMutableURLRequest(URL: NSURL(string:url)!)

        let session = NSURLSession.sharedSession()
        request.HTTPMethod = "POST"

        //Note : Add the corresponding "Content-Type" and "Accept" header. In this example I had used the application/json.
        request.addValue("application/json", forHTTPHeaderField: "Content-Type")
        request.addValue("application/json", forHTTPHeaderField: "Accept")

        request.HTTPBody = try! NSJSONSerialization.dataWithJSONObject(params, options: [])

        let task = session.dataTaskWithRequest(request) { data, response, error in
            guard data != nil else {
                print("no data found: \(error)")
                return
            }

            do {
                if let json = try NSJSONSerialization.JSONObjectWithData(data!, options: []) as? NSArray {
                    print("Response: \(json)")
                } else {
                    let jsonStr = NSString(data: data!, encoding: NSUTF8StringEncoding)// No error thrown, but not NSDictionary
                    print("Error could not parse JSON: \(jsonStr)")
                }
            } catch let parseError {
                print(parseError)// Log the error thrown by `JSONObjectWithData`
                let jsonStr = NSString(data: data!, encoding: NSUTF8StringEncoding)
                print("Error could not parse JSON: '\(jsonStr)'")
            }
        }

        task.resume()
    }
}

Answer 1

For mapping you can use Alamofire's extension ObjectMapper.

Ex:

[{
"_id" : "5470def9e0c0be27780121d7",
"imageUrl" : "https:\/\/s3-eu-west-1.amazonaws.com\/api-static\/clubs\/5470def9e0c0be27780121d7_180.png",
"name" : "Mondo",
"hasVip" : false,
"location" : {
    "city" : "Madrid"
}
}, {
    "_id" : "540b2ff281b30f3504a1c72f",
    "imageUrl" : "https:\/\/s3-eu-west-1.amazonaws.com\/api-static\/clubs\/540b2ff281b30f3504a1c72f_180.png",
    "name" : "Teatro Kapital",
    "hasVippler" : false,
    "location" : {
        "address" : "Atocha, 125",
        "city" : "Madrid"
    }
}, {
    "_id" : "540cd44581b30f3504a1c73b",
    "imageUrl" : "https:\/\/s3-eu-west-1.amazonaws.com\/api-static\/clubs\/540cd44581b30f3504a1c73b_180.png",
    "name" : "Charada",
    "hasVippler" : false,
    "location" : {
        "address" : "La Bola, 13",
        "city" : "Madrid"
    }
}]

And mapper class:

import ObjectMapper

class Location: Mappable {
    var address: String?
    var city: String?

    required init?(map: Map){

    }

    func mapping(map: Map) {
        address <- map["address"]
        city <- map["city"]
    }
}

class Club: Mappable {
    var id: String?
    var imageUrl: Int?
    var name: String?
    var hasVip: Bool = false
    var location: Location?

    required init?(map: Map){

    }

    func mapping(map: Map) {
        id <- map["_id"]
        imageUrl <- map["imageUrl"]
        name <- map["name"]
        hasVip <- map["hasVippler"]
        location <- map["location"]
    }
}

And this way very flexible and transparent to use.

https://github.com/Alamofire/Alamofire https://github.com/tristanhimmelman/AlamofireObjectMapper

Using example:

Alamofire.request(URL).responseArray { (response: DataResponse<[Club]>) in

    let clubs = response.result.value

    if let clubs = clubs {
        for club in clubs {
            print(club.name)
            print(club.location.city)           
        }
    }
}

Answer 2

You can make model class using this url : http://www.jsoncafe.com/

open this link and put your json in JSON tab and select any Code Template that is you want. and there is you can also add prefix class name and root class name if you want other wise it is optional. and last click on generate button, your json class is ready.!!