how to json list after converting into json - ios

Question

i am trying this but getting error . whats other way to sort this list of items .
getting error Value of tuple type
'(String, JSON)' has no member 'subscript'
let jsonData = try JSONSerialization.data(withJSONObject: bizSnapshot.value as Any, options: .prettyPrinted)
var bizOfferingsJson = try JSON(data: jsonData)
bizOfferingsJson items contains itemIndex as key as Int , i want to sort based on that itemIndex
bizOfferingsJson = bizOfferingsJson.sorted(by: { $0.["itemIndex"] > $1.["itemIndex"] })
print("bizOfferingsJson===",bizOfferingsJson)
sample bizOfferingsJson data
[
{
"isVisible" : true,
"itemRetailInfo" : {
"units" : "GRAMS",
"quantityPrice" : [
{
"discountPrice" : 0,
"regularPrice" : 25,
"quantity" : 1000,
"quantitySelected" : 1000,
"isEditable" : false
}
]
},
"imageStoragePathList" : [
"ONION_RED.png"
],
"bizOfferingsID" : "Vegetables_0",
"masterImage" : 0,
"vegNonVegInfoEnum" : "NONE",
"description" : "",
"itemQunatitySelected" : 0,
"bizOfferingsHeaderTypeThree" : {
"indexOrder" : 0,
"headerText" : "Vegetables",
"isVisible" : true
},
"itemIndex" : 0,
"totalCountQunatity" : 0,
"primaryText" : "Onion Red"
},
{
"isVisible" : true,
"itemRetailInfo" : {
"units" : "GRAMS",
"quantityPrice" : [
{
"discountPrice" : 0,
"regularPrice" : 25,
"quantity" : 1000,
"quantitySelected" : 1000,
"isEditable" : false
}
]
},
"imageStoragePathList" : [
"POTATO.png"
],
"bizOfferingsID" : "Vegetables_1",
"masterImage" : 0,
"vegNonVegInfoEnum" : "NONE",
"description" : "",
"itemQunatitySelected" : 0,
"bizOfferingsHeaderTypeThree" : {
"indexOrder" : 0,
"headerText" : "Vegetables",
"isVisible" : true
},
"itemIndex" : 1,
"totalCountQunatity" : 0,
"primaryText" : "Potato"
},
{
"isVisible" : true,
"itemRetailInfo" : {
"units" : "PIECES",
"quantityPrice" : [
{
"discountPrice" : 0,
"regularPrice" : 3,
"quantity" : 1,
"quantitySelected" : 0.10000000000000001,
"isEditable" : false
}
]
},
"imageStoragePathList" : [
"CORIANDER_LEAVES_BUNCH.png"
],
"bizOfferingsID" : "Vegetables_2",
"masterImage" : 0,
"vegNonVegInfoEnum" : "NONE",
"description" : "",
"itemQunatitySelected" : 0,
"bizOfferingsHeaderTypeThree" : {
"indexOrder" : 0,
"headerText" : "Vegetables",
"isVisible" : true
},
"itemIndex" : 2,
"totalCountQunatity" : 0,
"primaryText" : "Coriander Leaves Bunch"
},
{
"isVisible" : true,
"itemRetailInfo" : {
"units" : "GRAMS",
"quantityPrice" : [
{
"discountPrice" : 0,
"regularPrice" : 8,
"quantity" : 500,
"quantitySelected" : 500,
"isEditable" : false
}
]
},
"imageStoragePathList" : [
"TOMATO_STANDARD.png"
],
"bizOfferingsID" : "Vegetables_3",
"masterImage" : 0,
"vegNonVegInfoEnum" : "NONE",
"description" : "",
"itemQunatitySelected" : 0,
"bizOfferingsHeaderTypeThree" : {
"indexOrder" : 0,
"headerText" : "Vegetables",
"isVisible" : true
},
"itemIndex" : 3,
"totalCountQunatity" : 0,
"primaryText" : "Tomato Standard"
}
]

Answer 1

You need to clarify which type you sort assuming an array
var bizOfferingsJson = try JSON(data: jsonData).array!
bizOfferingsJson = bizOfferingsJson.sorted(by: { $0["itemIndex"] > $1["itemIndex"] })
or using mutating sort
bizOfferingsJson.sort{ $0["itemIndex"] > $1["itemIndex"] }
using Codable is much better given your json
struct Root: Codable {
let isVisible: Bool
let itemRetailInfo: ItemRetailInfo
let imageStoragePathList: [String]
let bizOfferingsID: String
let masterImage: Int
let vegNonVegInfoEnum, purpleDescription: String
let itemQunatitySelected: Int
let bizOfferingsHeaderTypeThree: BizOfferingsHeaderTypeThree
let itemIndex, totalCountQunatity: Int
let primaryText: String
enum CodingKeys: String, CodingKey {
case isVisible, itemRetailInfo, imageStoragePathList, bizOfferingsID, masterImage, vegNonVegInfoEnum
case purpleDescription = "description"
case itemQunatitySelected, bizOfferingsHeaderTypeThree, itemIndex, totalCountQunatity, primaryText
}
}
// MARK: - BizOfferingsHeaderTypeThree
struct BizOfferingsHeaderTypeThree: Codable {
let indexOrder: Int
let headerText: String
let isVisible: Bool
}
// MARK: - ItemRetailInfo
struct ItemRetailInfo: Codable {
let units: String
let quantityPrice: [QuantityPrice]
}
// MARK: - QuantityPrice
struct QuantityPrice: Codable {
let discountPrice, regularPrice, quantity: Int
let quantitySelected: Double
let isEditable: Bool
}
var res = try! JSONDecoder().decode([Root].self, from: jsonData)
res.sort { $0.itemIndex > $1.itemIndex }