convert Codable to Json (Dictionary) Swift - swift

Question

How can I convert Codable to Json Dictionay its a nested struct
struct one
struct User: Codable {
var name = "siddhant"
var age = 12
var topInt = ["1","2","3"]
var moreDetails = MoreDetails()
}
struct Two
struct MoreDetails: Codable {
var image = "ImageUrl"
}
I need out put as a Json when I convert this to Json it just convert me the struct one not the 2nd struct
do {
let sid = try JSONEncoder().encode(users)
let dict = try JSONSerialization.jsonObject(with: sid, options: []) as? [String: Any]
print(dict)
}
catch {
print(error)
}
current output which is wrong:
(["name": siddhant, "topInt": <__NSArrayI 0x2831a1c20>(1,2,3),
"moreDetails": {
image = ImageUrl;
}, "age": 12])
I want output like
{
"name": "siddhant",
"topInt": ["1", "2", "3"],
"moreDetails": {
"image": "ImageUrl"
},
"age": 12
}

Answer 1

You can create an extension on Encodable so that you can use it for all elements that conform to Encodable protocol
extension Encodable {
var dictionary: [String: Any]? {
guard let data = try? JSONEncoder().encode(self) else { return nil }
return (try? JSONSerialization.jsonObject(with: data, options: .allowFragments)).flatMap { $0 as? [String: Any] }
}
}
In your case if the model is user of type User
guard let userDict = user.dictionary else { return }

Answer 2

what I did now is
let users = User()
let staticJson = ["name": users.name,
"age": users.age,
"topInt": users.topInt,
"moreDetails": ["image": users.moreDetails.image]] as? [String: Any]

Answer 3

You need to specify what is your desired result. Following your code:
struct User: Codable {
var name = "siddhant"
var age = 12
var topInt = ["1","2","3"]
var moreDetails = MoreDetails()
var dictionaryJson: [String : Any] {
let encoder = JSONEncoder()
return (try? JSONSerialization.jsonObject(with: encoder.encode(self), options: .allowFragments)) as? [String: Any] ?? [:]
}
}
struct MoreDetails: Codable {
var image = "ImageUrl"
}
do {
let users = User()
let jsonData = try JSONEncoder().encode(users)
let jsonString = String(data: jsonData, encoding: .utf8)!
print(jsonString)
print("\n")
print(users.dictionaryJson)
print("\n")
print("Getting the var from dictionary")
print(users.dictionaryJson["moreDetails"])
} catch {
print(error)
}
The output:
{"age":12,"moreDetails":{"image":"ImageUrl"},"name":"siddhant","topInt":["1","2","3"]}
["topInt": <__NSArrayI 0x6000008e8150>(
1,
2,
3
)
, "name": siddhant, "age": 12, "moreDetails": {
image = ImageUrl;
}]
Getting the var from dictionary
Optional({
image = ImageUrl;
})