Parse Simple Dictionary Array from HTTP Request

I have a JSON response in the following format:

{
  "coordinates": [
    "-0.88676",
    "51.47533"
  ],
[
    "-0.88646",
    "51.47549"
]
}

I am struggling to parse this data and append each coordinates value into an array.
I can see that this is a dictionary array but if I try to parse as a dictionary I get an error. Parsing as an array returns just the one item which essentially is the json as a single entry.

I am not adding any of my code as I believe this would be fruitless, because I have been unable to achieve what I need without errors, and have tried numerous options, all without success.

>Solution :

At the moment your JSON is not valid JSON data. But that might be a typo.

If we change this into valid JSON…

{
  "coordinates": [
    [
      "-0.88676",
      "51.47533"
    ],
    [
      "-0.88646",
      "51.47549"
    ]
  ]
}

Then you could represent this as a struct like…

struct Response: Decodable {
  let coordinates: [[String]] // <- this is a 2D array of coordinate pairs.

  var locations: [CLLocation2D] {
    coordinates
      .map { $0.compactMap(Double.init) }
      .filter { $0.count < 2 }
      .map { ($0[0], $0[1]) }
      .map(CLLocation2D.init(latitude:longitude:))
  } // Something like that anyway
}

Then you can decode it like…

let data = // get the data from the network or a file etc...
let response = JSONDecoder().decode(Response.self, from: data)

That should give you the struct you want.