Nested Json Decoder Swift - ios

Question

While decode the json, i getting nil response. I have nested json. whether i dont know, i'm parsing right way or not.
Here is my code.
struct ProfileModelClass : Codable {
let status : Int?
let message : String?
let profile : Profile?
enum CodingKeys: String, CodingKey {
case status = "status"
case message = "message"
case profile
}
init(from decoder: Decoder) throws {
let values = try decoder.container(keyedBy: CodingKeys.self)
status = try values.decodeIfPresent(Int.self, forKey: .status)
message = try values.decodeIfPresent(String.self, forKey: .message)
profile = try Profile(from: decoder)
}
}
struct Profile : Codable {
let name : String?
let email : String?
let verified : Bool?
let phone : Int?
let articletype : [String]?
let ai_score : Int?
let bfi : String?
let pic : String?
let cover : String?
let background : String?
let layout : String?
let customcolors : Customcolors?
let widgets : [String]?
let basket : [Basket]?
let joindate : String?
let linklink_id : String?
let gps : Bool?
let radius : Int?
let showme : Bool?
enum CodingKeys: String, CodingKey {
case name = "name"
case email = "email"
case verified = "verified"
case phone = "phone"
case articletype = "articletype"
case ai_score = "ai_score"
case bfi = "bfi"
case pic = "pic"
case cover = "cover"
case background = "background"
case layout = "layout"
case customcolors
case widgets = "widgets"
case basket = "basket"
case joindate = "joindate"
case linklink_id = "linklink_id"
case gps = "gps"
case radius = "radius"
case showme = "showme"
}
init(from decoder: Decoder) throws {
let values = try decoder.container(keyedBy: CodingKeys.self)
name = try values.decodeIfPresent(String.self, forKey: .name)
email = try values.decodeIfPresent(String.self, forKey: .email)
verified = try values.decodeIfPresent(Bool.self, forKey: .verified)
phone = try values.decodeIfPresent(Int.self, forKey: .phone)
articletype = try values.decodeIfPresent([String].self, forKey: .articletype)
ai_score = try values.decodeIfPresent(Int.self, forKey: .ai_score)
bfi = try values.decodeIfPresent(String.self, forKey: .bfi)
pic = try values.decodeIfPresent(String.self, forKey: .pic)
cover = try values.decodeIfPresent(String.self, forKey: .cover)
background = try values.decodeIfPresent(String.self, forKey: .background)
layout = try values.decodeIfPresent(String.self, forKey: .layout)
customcolors = try Customcolors(from: decoder)
widgets = try values.decodeIfPresent([String].self, forKey: .widgets)
basket = try values.decodeIfPresent([Basket].self, forKey: .basket)
joindate = try values.decodeIfPresent(String.self, forKey: .joindate)
linklink_id = try values.decodeIfPresent(String.self, forKey: .linklink_id)
gps = try values.decodeIfPresent(Bool.self, forKey: .gps)
radius = try values.decodeIfPresent(Int.self, forKey: .radius)
showme = try values.decodeIfPresent(Bool.self, forKey: .showme)
}
}
struct Basket : Codable {
let mood : String?
let score : Int?
enum CodingKeys: String, CodingKey {
case mood = "mood"
case score = "score"
}
init(from decoder: Decoder) throws {
let values = try decoder.container(keyedBy: CodingKeys.self)
mood = try values.decodeIfPresent(String.self, forKey: .mood)
score = try values.decodeIfPresent(Int.self, forKey: .score)
}
}
struct Customcolors : Codable {
let text : String?
let opacity : Double?
let bg : String?
enum CodingKeys: String, CodingKey {
case text = "text"
case opacity = "opacity"
case bg = "bg"
}
init(from decoder: Decoder) throws {
let values = try decoder.container(keyedBy: CodingKeys.self)
text = try values.decodeIfPresent(String.self, forKey: .text)
opacity = try values.decodeIfPresent(Double.self, forKey: .opacity)
bg = try values.decodeIfPresent(String.self, forKey: .bg)
}
}
Here is my json response also
{"status":1,"message":"Fetched data","profile":{"name":"Prem Kumar","email":"a#a.com","verified":true,"phone":"[phone]","articletype":["fun","article","insight"],"ai_score":100,"bfi":"100%","pic":"","cover":"","background":"","layout":"3column","customcolors":{"text":"#e7e7e7","opacity":"0.8","bg":"#272323"},"widgets":["interest","education","hobbies","media","habits","profession","weather","smabusinesstypes","orderhistory","newspaper","country","wishlist"],"basket":[{"mood":"sadness","score":5},{"mood":"fear","score":4},{"mood":"anger","score":4},{"mood":"disgust","score":3},{"mood":"hate","score":3},{"mood":"jealousy","score":2},{"mood":"satisfaction","score":0},{"mood":"competetive","score":0},{"mood":"frustration","score":0},{"mood":"joy","score":0},{"mood":"elevation","score":0},{"mood":"love","score":0},{"mood":"energetic","score":0}],"joindate":"2017-12-10T07:50:06.379Z","linklink_id":"5a435b0a5c23904f78b76542","gps":true,"radius":5,"showme":true}}

Answer 1

Please read the error messages. They are pretty clear
In Profile the value for key phone is String
In CustomColors the value for key opacity is String
Every value in double quotes is String, even "0", "1.0" and "false"
You can delete all coding keys and all initializers because they are provided implicitly. And do not declare everything carelessly as optional. Declare only those properties as optional whose corresponding key could be missing. This particular JSON works without any optional property

Answer 2

As #vadian rightly said, remove all the initializers and do not declare everything as optional straightaway. Identify the keys which can be missing in the response and declare only those keys as optionals. The JSON that you have provided does not require any optionals.
Just to be more clear, please check the following code
struct ProfileModelClass : Codable {
let status : Int
let message : String
let profile : Profile
}
struct Profile : Codable {
let name : String
let email : String
let verified : Bool
let phone : String
let articletype : [String]
let ai_score : Int
let bfi : String
let pic : String
let cover : String
let background : String
let layout : String
let customcolors : Customcolors
let widgets : [String]
let basket : [Basket]
let joindate : String
let linklink_id : String
let gps : Bool
let radius : Int
let showme : Bool
}
struct Customcolors : Codable {
let text : String
let opacity : String
let bg : String
}
struct Basket : Codable {
let mood : String
let score : Int
}