How to Decode Badly Formatted JSON in Swift using Codable - json

Question

I am trying to decode the Yelp REST API business search response in Swift using codable. I have managed to decode this using the traditional method of serializing the response into a NSDictionary and just marshaling objects using values from the dictionary; however, as an exercise to myself I am trying to refactor the code to use the Codable protocols and JSONDecoder() in Swift. Yelp really wrote a shitty API and this is the response that I need to decode:
{
businesses = (
{
alias = "dos-caminos-new-york-7";
categories = (
{
alias = mexican;
title = Mexican;
},
{
alias = bars;
title = Bars;
}
);
coordinates = {
latitude = "40.7593727";
longitude = "-73.9853281";
};
"display_phone" = "[phone]";
distance = "55.57057440108928";
id = 2iwT3iutZvmqzmu7oOkWFw;
"image_url" = "https://s3-media2.fl.yelpcdn.com/bphoto/eHvXPqv6iLcTXfT486z6JA/o.jpg";
"is_closed" = 0;
location = {
address1 = "1567 Broadway";
address2 = "";
address3 = "";
city = "New York";
country = US;
"display_address" = (
"1567 Broadway",
"New York, NY 10036"
);
state = NY;
"zip_code" = 10036;
};
name = "Dos Caminos";
phone = "[phone]";
price = "$$";
rating = "3.5";
"review_count" = 644;
transactions = (
delivery,
pickup
);
url = "https://www.yelp.com/biz/dos-caminos-new-york-7?adjust_creative=RzPd81IBxDPwaWBeNhRk8w&utm_campaign=yelp_api_v3&utm_medium=api_v3_business_search&utm_source=RzPd81IBxDPwaWBeNhRk8w";
},
{
alias = "bond-45-new-york-2";
categories = (
{
alias = italian;
title = Italian;
},
{
alias = pizza;
title = Pizza;
},
{
alias = newamerican;
title = "American (New)";
}
);
coordinates = {
latitude = "40.7591637016814";
longitude = "-73.9859788257256";
};
"display_phone" = "[phone]";
distance = "77.44246334243893";
id = "8-Ug0Zjs5sL6MARspRJ7CA";
"image_url" = "https://s3-media2.fl.yelpcdn.com/bphoto/CEfwtx0YtfDGog0hWmQ72A/o.jpg";
"is_closed" = 0;
location = {
address1 = "221 W 46th St";
address2 = "";
address3 = "";
city = "New York";
country = US;
"display_address" = (
"221 W 46th St",
"New York, NY 10036"
);
state = NY;
"zip_code" = 10036;
};
name = "Bond 45";
phone = "[phone]";
price = "$$";
rating = "3.5";
"review_count" = 755;
transactions = (
delivery,
pickup
);
url = "https://www.yelp.com/biz/bond-45-new-york-2?adjust_creative=RzPd81IBxDPwaWBeNhRk8w&utm_campaign=yelp_api_v3&utm_medium=api_v3_business_search&utm_source=RzPd81IBxDPwaWBeNhRk8w";
}
);
region = {
center = {
latitude = "40.758896";
longitude = "-73.98513";
};
};
total = 5300;
}
The top level object has a value of businesses which has a list? of Businesses that I want to create. I have created the corresponding Swift Codable structs as such:
struct Response: Codable {
var businesses: [Business]
enum CodingKeys: CodingKey {
case businesses
}
init(from decoder: Decoder) throws {
let values = try decoder.container(keyedBy: CodingKeys.self)
// ERROR: Swift.DecodingError.typeMismatch(Swift.Dictionary<Swift.String, Any>, Swift.DecodingError.Context(codingPath: [CodingKeys(stringValue: "businesses", intValue: nil), _JSONKey(stringValue: "Index 0", intValue: 0)], debugDescription: "Expected to decode Dictionary<String, Any> but found an array instead.", underlyingError: nil))).
businesses = try values.decode([Business].self, forKey: .businesses)
print("values is \(values.allKeys)")
}
func encode(to encoder: Encoder) throws {
//TODO
}
}
and
struct Business: Codable {
var name: String
var category:
var latitude: Double = 0.0
var longitude: Double = 0.0
var phoneNumber: String = ""
var distance: Double = 0.0
var imageURL: String = ""
var price: Price
var yelpURL: String
enum CodingKeys: String, CodingKey {
case name = "name"
case category = "categories"
case coordinates = "coordinates"
case phoneNumber = "phone"
case distance = "distance"
case imageURL = "image_url"
case price = "price"
case yelpURL = "url"
}
enum CategoryCodingKey: String, CodingKey {
case alias = "alias"
case title = "title"
}
enum CoordinateInfoKeys: String, CodingKey {
case latitude = "latitude"
case longitude = "longitude"
}
init(from decoder: Decoder) throws {
let values = try decoder.container(keyedBy: CodingKeys.self)
name = try values.decode(String.self, forKey: .name)
// TODO, will add more here but the error is not really here
}
func encode(to encoder: Encoder) throws {
}
}
The error that I get when I try to run this code is in a comment in the Response struct above. It seems to me that the YELP API is formatted in such a way that the value for businesses is not a list of objects but some other type that Swift does not recognize. How do I go about using Codable to decode this Response into the Response struct that will hold a list of Businesses? Is this even possible with the way the YELP API has been setup?