JSONModel: Model Collection to JSON and Add Collection Manually - ios

Question

Lets say I have this Model.
#protocol ProductModel
#end
#interface ProductModel : JSONModel
#property (assign, nonatomic) int id;
#property (strong, nonatomic) NSString* name;
#property (assign, nonatomic) float price;
#end
#implementation ProductModel
#end
#interface OrderModel : JSONModel
#property (assign, nonatomic) int order_id;
#property (assign, nonatomic) float total_price;
#property (strong, nonatomic) NSArray<ProductModel>* products;
#end
#implementation OrderModel
#end
Questions:
How I can add products in this array?
Then how I can produce the following JSON.
"products" : [
{
"id": "123",
"name": "Product #1",
"price": 12.95
},
{
"id": "137",
"name": "Product #2",
"price": 82.95
}
]
or the whole object.
{
"order_id": 104,
"total_price": 103.45,
"products" : [
{
"id": "123",
"name": "Product #1",
"price": 12.95
},
{
"id": "137",
"name": "Product #2",
"price": 82.95
}
]
}

Answer 1

I think BWJSONMatcher can help you out in a extremely neat way:
ProductModel *productModel1 = [[ProductModel alloc] init];
productModel1.id = 123;
productModel1.name = #"Product #1";
productModel1.price = 12.95;
ProductModel *productModel2 = [[ProductModel alloc] init];
productModel2.id = 137;
productModel2.name = #"Product #2";
productModel2.price = 82.95;
OrderModel *orderModel = [[OrderModel alloc] init];
orderModel.order_id = 104;
orderModel.total_price = 103.45;
orderModel.products = #[productModel1, productModel2];
NSString *producedJSON = [orderModel toJSONString];