gistfile1.swift

import Foundation
import ObjectMapper

class News : Mappable {
    let id: Int
    let username : String
    let date: String
    let share_url: String
    let image: String
    let title: String
    let text: String
    
    required init?(_ map: Map) {
        if let _id = map["id"] {
            id = _id
        } else {
            return nil
        }
        ...
    }
}