Using JSON Decodable in Swift 4.1 - json

Question

{
"count":30,
"recipes":[
{
"publisher":"Closet Cooking",
"f2f_url":"http://food2fork.com/view/35382",
"title":"Jalapeno Popper Grilled Cheese Sandwich",
"source_url":"http://www.closetcooking.com/2011/04/jalapeno-popper-grilled-cheese-sandwich.html",
"recipe_id":"35382",
"image_url":"http://static.food2fork.com/Jalapeno2BPopper2BGrilled2BCheese2BSandwich2B12B500fd186186.jpg",
"social_rank":100.0,
"publisher_url":"http://closetcooking.com"
}
]
}
How can I parse this JSON using Swift 4.1 Decodable please?

Answer 1

Your previous question is quite close but you have to add the struct for the root object
Declare the struct members non-optional as much as possible. The URLs can be decoded as URL
struct Root : Decodable {
let count : Int
let recipes : [Recipe]
}
struct Recipe : Decodable { // It's highly recommended to declare Recipe in singular form
let recipeId : String
let imageUrl, sourceUrl, f2fUrl : URL
let title : String
let publisher : String
let socialRank : Double
let page : Int?
let ingredients : [String]?
}
Now decode
let decoder = JSONDecoder()
decoder.keyDecodingStrategy = .convertFromSnakeCase
let result = try decoder.decode(Root.self, from: data)
self.recipes = result.recipes

Answer 2

below are the models for your JSON:
struct Recipe: Codable{
let publisher: String
let f2f_url: String
let title: String
let source_url: String
let recipe_id: String
let image_url: String
let social_rank: Float
let publisher_url: String
}
struct Model: Codable {
let count: Int
let recipes: [Recipe]
}
and below is JSON decodable:
let json = """
{
"count":30,
"recipes":[
{
"publisher":"Closet Cooking",
"f2f_url":"http://food2fork.com/view/35382",
"title":"Jalapeno Popper Grilled Cheese Sandwich",
"source_url":"http://www.closetcooking.com/2011/04/jalapeno-popper-grilled-cheese-sandwich.html",
"recipe_id":"35382",
"image_url":"http://static.food2fork.com/Jalapeno2BPopper2BGrilled2BCheese2BSandwich2B12B500fd186186.jpg",
"social_rank":100.0,
"publisher_url":"http://closetcooking.com"
}
]
}
""".data(using: .utf8)!
let decoder = JSONDecoder()
do {
let model = try decoder.decode(Model.self, from: json) //Decode JSON Response Data
print(model)
} catch let parsingError {
print("Error", parsingError)
}