Xtykutl

As you can see, the right hand data has keys like "7", "8" etc...
Now I know that these are not quite "integers" because they are numbers in String.
However, when I decode them, I need to use that key name as the variable name.
But, we cannot have number as a variable name.

What should I do in this case? How can I decode this?

Is it just better to re-create the dataset so that it does not have the number as the key? But then, what do people do when they do not have control the dataset?

The entire code is too long and irrelevant so I just took a screenshot.
If you want, you can see the JSON data here
https://api.myjson.com/bins/11r19i

You can define your own coding keys:

struct A: Decodable {

    let one: [Int]

    let two: [Int]



    enum CodingKeys : String, CodingKey {

        // this basically means that the key "1" will correspond to the property "one"

        case one = "1"

        // key "2" will correspond to the property "two"

        case two = "2"

    }

}

Example:

let json = "{"1": [1,2,3], "2": [4,5,6]}"

let data = json.data(using: .utf8)

let decoder = JSONDecoder()

let a = try! decoder.decode(A.self, from: data!)

print(a.two) // [4,5,6]

You can use CodingKey to achieve that.

struct bus: Codable {

    var one: String?

    var two: String?

    var three: String?

    enum CodingKeys: String, CodingKey {

        case one  = "1"

        case two = "2"

        case three = "3"

    }

}

it will decode those keys inside each case, you should be able to recognize now.