How can I insert my array of Objects in a JSON? - json

Question

I've created an Array of Objects in Swift which has the following structure:
var myCart:[FoodItem] = []
var dump:
▿ 3 elements
▿ [0]: TablePinAdolfoTesting.FoodItem #0
- id: 5
- name: Taco
- cant: 2
▿ [1]: TablePinAdolfoTesting.FoodItem #1
- id: 6
- name: Burrito
- cant: 1
▿ [2]: TablePinAdolfoTesting.FoodItem #2
- id: 4
- name: Enchiladas
- cant: 3
I used Alamofire to get said object from my API but now, after changing them a little bit, I want to insert it into a new JSON which I created like so:
var json: JSON = ["idUser": idUser, "total_loyalty_points": totalLP, "total_price": totalPrice, "car": []]
printed json:
{
"total_price" : 50000,
"car" : [
],
"idUser" : 58,
"total_loyalty_points" : 5000
}
I have 2 issues with this...
for some reason "car" is being placed at the 2nd position even though I put it last during the JSON declaration.
The second issue is that I don't know how to place my Array of Objects within that JSON to obtain something like this:
{"idUser": (int),
"total_loyalty_points": (double),
"total_price":(double),
"car":[
{
"id": (string),
"name": (string),
"cant": (int)
}
]
}
Where "car" is an Array of Objects within that JSON. I would prefer to do this using SwiftyJSON if possible to maintain consistency but it is not a requirement.
One thing that I tried but does not work is the following
for object in cart.myCart{
var name = [String: String]()
name["id"] = object.id
name["name"] = object.name
json["car"] = JSON(name)
json["car"]["cant"] = JSON(object.cant)
}
The reason it does not work is that this will not create an array in Cart, it will just overwrite the JSON
Thanks.

Answer 1

For first problem there is no solution as Map or Dictionary doesn't maintain the order.
Second problem is because of you are assigning json["car"] to JSON which is a object not array of objects. Modified code is:
var cars = [[String: String]]()
for object in cart.myCart{
var name = [String: String]()
name["id"] = object.id
name["name"] = object.name
name["cant"] = object.cant
cars.append(name)
}
json["car"] = JSON(cars)