如何創建一個struct反序列化JSON進，與多級節點

Question

可以說我有這個JSON例如

{ 
    "kind": "Listing", 
    "data": { 
     "children": { 
      "domain": "twitlonger.com", 
      "other": "blahblah" 
     }, 
     "children": { 
      "domain": "Otherplace.com", 
      "other": "blahblah" 
     } 
    } 
} 

我怎麼能創建一個結構來反序列化爲例如這個

-Psuedo代碼 -

struct JSONResp { 
    let kind:String 
    let data:[String: Any] { 
     let children:[String: Any] { 
      let domain:String 
      let other:String 
     }   
    } 
} 

extension JSONResp { 
    init?(json: [String: Any]) { 
     // Deserialize my stuff 
    } 
} 

我從Golang未來，我只想能夠做到

type JSONResp struct { 
    Kind string 
    Data []children 
} 

type children struct { 
    Domain string 
    Other string 
} 

的任何信息將是巨大的感謝在哪裏。

這裏有點兒我到目前爲止所做的事情，我不知道它是否正確，只是做了一些我通過Go教會我的直覺。

import Foundation 

struct Subreddit { 
    let kind:String 
    let data:[Data] 

} 

struct Data { 
    let modhash:String 
    let children:[Children] 
} 

struct Children { 
    let kind:String 
    let data:[Payload] 
} 

struct Payload { 
    let contest_mode:Bool 
    let banned_by:NSNull 
    let domain:String 
    let subreddit:String 
    let selftext_html:String 
    let selftext:String 
    let likes:NSNull 
    let suggested_sort:NSNull 
    let saved:Bool 
    let id:String 
    let gilded:Int 
    let clicked:Bool 
    let author:String 
    let name:String 
    let score:Int 
    let over_18:Bool 
    let hidden:Bool 
    let thumbnail:String 
    let subreddit_id:String 
    let link_flair_css_class:String 
    let author_flair_css_class:String 
    let permalink:String 
    let Preview:[Preview] 
    let locked:Bool 
    let stickied:Bool 
    let created:Float64 
    let url:String 
    let author_flair_text:String 
    let quarantine:Bool 
    let title:String 
    let created_utc:Float64 
    let link_flair_text:String 
    let num_comments:UInt32 
    let visited:Bool 
    let ups:UInt32 
} 

struct Preview { 
    let images:[Images] 
} 

struct Images { 
    let source:[String:Any] 
    let resolutions:[String:Any] 
    let id:String 
} 

extension Subreddit { 
    init?(json: [String: Any]) { 

    } 
} 

Answer 1

對於給定的JSON聲明兩個結構Child和JSONResp。

如果kind，data和children的值之一是缺少

struct Child { 
    let domain : String 
    let other : String 
} 

struct JSONResp { 
    let kind : String 
    var children = [Child]() 

    init?(json: [String: Any]) { 
    guard let kind = json["kind"] as? String, 
     let data = json["data"] as? [String:Any], 
     let kids = data["children"] as? [[String:Any]] else { 
     return nil 
    } 
    self.kind = kind 
    for child in kids { 
     if let domain = child["domain"] as? String, 
     let other = child["other"] as? String { 
     children.append(Child(domain: domain, other: other)) 
     } 
    } 
    } 
}