How to make JSON from nested struct - arrays

Question

I have a nested struct:
struct Order: Codable {
let foodList: [FoodList]
let name: String
let phone: String
let email: String
}
struct FoodList: Codable {
let foodName: String
let foodID: String
let foodAmount: Int
}
I need to make JSON from this struct. It have to be like this:
{
"name": "Name",
"phone": "[phone]",
"email": "email#email.email",
"foodList": [
{
"foodName": "Big Mac",
"foodID": "115",
"foodAmount": 2
},
{
"foodName": "Naggets",
"foodID": "221",
"foodAmount": 5
}
]
}
But I always get this JSON )
[
{
"email": "Name",
"phone": "[phone]",
"foodList": {
"foodAmount": 2,
"foodID": "115",
"foodName": "Big Mac"
},
"name": "email#email.email"
},
{
"email": "email#email.email",
"phone": "[phone]",
"foodList": {
"foodAmount": 5,
"foodID": "221",
"foodName": "Naggets"
},
"name": "Name"
}
]
In JSON it have to be 1 Person and array of selected food.
I code JSON to struct with this code:
let orderList = [OrderList]()
for index in 0..<subMenuList.count {
if subMenuList[index].foodList.foodSelectedAmount != 0 {
orderList.append(OrderList(
foodList: FoodListOrder(
foodName: subMenuList[index].foodList.foodName,
foodID: subMenuList[index].foodList.foodID,
foodAmount: subMenuList[index].foodList.foodSelectedAmount),
name: mainView.nameTextField.text!,
phone: mainView.phoneTextField.text!,
email: mainView.emailTextField.text!))
}
let jsonEncoder = JSONEncoder()
do {
let jsonData = try jsonEncoder.encode(orderList)
print(String(data: jsonData, encoding: .utf8)!)
} catch {
print(error)
}
Something wrong in "FOR" block and textfields... I think. I am appending person's data from textfields each time it loops.

Answer 1

Assuming Order is equal to OrderList and FoodList is equal to FoodListOrder you have to create first the FoodList array and then create the (single) Order object.
var foodList = [FoodList]()
for item in subMenuList { // don't use an index based loop if you actually don't need the index
if item.foodList.foodSelectedAmount != 0 {
foodList.append(FoodList(foodName: item.foodList.foodName,
foodID: item.foodList.foodID,
foodAmount: item.foodList.foodSelectedAmount)
}
}
let order = Order(foodList: foodList,
name: mainView.nameTextField.text!,
phone: mainView.phoneTextField.text!,
email: mainView.emailTextField.text!)
let jsonEncoder = JSONEncoder()
do {
let jsonData = try jsonEncoder.encode(order)
print(String(data: jsonData, encoding: .utf8)!)
} catch {
print(error)
}