I am currently trying to parse a nested dictionary response using Codable and trying to not use too much custom decoders.

JSON response looks similar to below:

{
  "id": "1234",
  "data": {
    "1": {
      "name": "foo1",
      "types": {
        "a": {
          "value": "bar1"
        },
        "b": {
          "value": "bar2"
        },
        "c": {
          "value": "bar3"
        }
      }
    },
    "2": {
      "name": "foo2",
      "types": {
        "d": {
          "value": "bar4"
        },
        "e": {
          "value": "bar5"
        },
        "f": {
          "value": "bar6"
        }
      }
    }
  }
}

Root Class

struct JSONResponse : Codable {
    let id : String?
    let data : Data?

    enum CodingKeys: String, CodingKey {

        case id = "id"
        case data = "data"
    }

    init(from decoder: Decoder) throws {
        let values = try decoder.container(keyedBy: CodingKeys.self)
        id = try values.decodeIfPresent(String.self, forKey: .id)
        data = try values.decodeIfPresent(Data.self, forKey: .data)
    }

}

Now the data class is where I would end up with many nested containers. Is there any better way to resolve this ?