Store JSON data into model class array in Swift 4

Question

I want to store the fetched JSON data to my model class array propertyArray. Some how I got the JSON data using Alamofire library and now I want to parse that data to the properties of PropertyList model class. I am not able to parse JSON data to propertyArray. I referred many other solutions to this question on stack overflow but did not get any appropriate solution.

Declared Model Class Array

var propertyArray: [PropertyList]? = []

Alamofire Function

func dataPass()  {
    print("Landlord id is \(land.id)")
    let  para: Parameters = ["id": land.id]
    Alamofire.request(URL_Landlord_Property_List, method: .post, parameters: para).responseJSON { response in
        if let dictionary = response.result.value as? [String : AnyObject]{
            var prop = PropertyList()
            let data = dictionary["data"] as! [Any]
            print(data)
        }
    }
}

PropertyList

import Foundation

struct PropertyList{
    var property_id: String?
    var user_id: String?
    var property_code: String?
    var property_added_date: String?
    var property_updated_date: String?
    var property_termination_date: String?
    var property_ASYS_no: String?
    var propertyCode: String?
    var property_address_1:String?
    var property_address_2: String?
    var property_address_3: String?
    var property_city: String?
    var property_cluster:String?
    var property_area:String?
    var property_postcode: String?
    var property_landlord_ref_code: String?
    var property_landlord_id: String?
}

JSON Data

{
  "success": true,
  "data": [
    {
      "property_id": "1",
      "user_id": "1",
      "property_code": "0001",
      "property_added_date": "2017-12-13",
      "property_updated_date": "2017-12-13 00:00:00",
      "property_termination_date": null,
      "property_ASYS_no": "ASYS 001",
      "propertyCode": "0001-PUNE1",
      "property_address_1": "PUNE1",
      "property_address_2": "PUNE2",
      "property_address_3": "PUNE3",
      "property_city": "PUNE",
      "property_cluster": "1",
      "property_area": "1",
      "property_postcode": "424031",
      "property_landlord_ref_code": null,
      "property_landlord_id": "1"
    },
    {
      "property_id": "2",
      "user_id": "1",
      "property_code": "0002",
      "property_added_date": "2017-12-14",
      "property_updated_date": "2017-12-18 00:00:00",
      "property_termination_date": null,
      "property_ASYS_no": "asys 0200",
      "propertyCode": "0002-hadpasar1",
      "property_address_1": "hadpasar1",
      "property_address_2": "hadpasar2",
      "property_address_3": "hadpasar3",
      "property_city": "pune",
      "property_cluster": "9",
      "property_area": "2",
      "property_postcode": "012121",
      "property_landlord_ref_code": null,
      "property_landlord_id": "1"
    }
  ]
}

Answer 1

Looks like your JSON is an array that contains dictionaries. (Key-Value data structure)

This should do the trick.

 let data = dictionary["data"] as! [[String: Any]]

Then parse it inside your constructor:

struct PropertyList{

    init(dict: [String: Any){
     //parse here...
       self.property_id = dict["property_id"] as! String
    }

}

To add to array:

 for dict in data{
      let propertyList = PropertyList(dict: dict)
      propertyArray.append(propertyList)
 }