将带有 object 的 json 阵列添加到 Z818056DBD7E201243206B9C7CD8848 中的 Codable model

Question

I have json reponse from server which contains array with json object. How do i store it to my product modal.

{
    "status": 200,
    "image_galleries":[
        {"image_url":"8331663c9c5437a4f047ed45a56190a1-2-600x600.jpeg"},
        {"image_url":"31875021aa1f2a37f3192610223eb12b-3-600x600.jpeg"},
        {"image_url":"ac1312a66aa1bf8c34676a5d550c5e24-4-600x600.jpeg"},
        {"image_url":"5880621259e66151938a412e4197d8be-5-600x600.jpeg"}
    ],
    "id": "12345678"
}

My ProductModel

struct ProductModel: Codable{
    //var image_galleries: [String: [String?]]?
    var image_galleries: [String: [Array<String?>]]?
    var product_id: String?
}

Adding response object to my ProductModel

let data = try JSONDecoder().decode(ProductModel.self, from: response!)
self.Product = data

When i print the image_galleries it always return null

print("Images", self.Product?.image_galleries as Any) // will print nil
print("Id", self.Product?.product_id) // Will print 12345678

Answer 1

When you are using codable you don't need to do the Array<String> and stuff like that. You can simply make an another decodable and codable and achieve it.

struct ProductModel: Decodable{
    var image_galleries: [Galleries]
    let id: String
    let status: Int
}

struct Galleries: Decodable {
let image_url: String
}

Also, instead of writing image_galleries , you should use imageGalleries and when you are decoding, you can use .convertFromSnakeCase , it is a key decoding strategy as in Swift we follow camelCase instead of snake_case.

let decoder = JSONDecoder()
decoder.keyDecodingStrategy = .convertFromSnakeCase
do {

let json = try decode.decode(ProducModel.self, from: data) 
} catch let error {
 print(error)
}