Swift 4 JSON Decodable with multidimensional and multitype array

Question

{
\"values\":[
[1,1,7,\"Azuan Child\",\"Anak Azuan\",\"12345\",\"ACTIVE\",\"Morning\",7,12,\"2017-11-09 19:45:00\"],
[28,1,0,\"Azuan Child2\",\"Amran\",\"123456\",\"         


        

Answer 1

This answer is build on top of the answer by @Orkhan Alikhanov

Since the values are Int or String, we can better represent them with an enum in place of Any.

The following code can be pasted into Playground

JSON

So let's start with the JSON

let data = """
{
    "values": [
        [1, 1, 7, "Azuan Child", "Anak Azuan", "12345", "ACTIVE", "Morning", 7, 12, "2017-11-09 19:45:00"],
        [28, 1, 0, "Azuan Child2", "Amran", "123456", "ACTIVE", "Evening", 1, 29, "2017-11-09 19:45:00"]
    ]
}
""".data(using: .utf8)!

Data Model

Now we can define our model (which will be Decodable)

enum IntOrString: Decodable {

    case int(Int)
    case string(String)

    init(from decoder: Decoder) throws {

        if let string = try? decoder.singleValueContainer().decode(String.self) {
            self = .string(string)
            return
        }

        if let int = try? decoder.singleValueContainer().decode(Int.self) {
            self = .int(int)
            return
        }

        throw IntOrStringError.intOrStringNotFound
    }

    enum IntOrStringError: Error {
        case intOrStringNotFound
    }
}

As you can see we are explicitly saying that each value will be an Int or a String.

Response

And of course we need our Response type.

struct Response: Decodable {
    var values: [[IntOrString]]
}

Decoding

Now we can safely decode the JSON

if let response = try? JSONDecoder().decode(Response.self, from: data) {
    let values = response.values

    for value in values {
        for intOrString in value {
            switch intOrString {
            case .int(let int): print("It's an int: \(int)")
            case .string(let string): print("It's a string: \(string)")
            }
        }
    }
}

Output

It's an int: 1
It's an int: 1
It's an int: 7
It's a string: Azuan Child
It's a string: Anak Azuan
It's a string: 12345
It's a string: ACTIVE
It's a string: Morning
It's an int: 7
It's an int: 12
It's a string: 2017-11-09 19:45:00
It's an int: 28
It's an int: 1
It's an int: 0
It's a string: Azuan Child2
It's a string: Amran
It's a string: 123456
It's a string: ACTIVE
It's a string: Evening
It's an int: 1
It's an int: 29
It's a string: 2017-11-09 19:45:00