swift 4 Parse JSON without keys with Alamofire

Question

Guys i want to get all names from JSON (screenshot below) and put them to tableView. The problem is...i got dictionary with this code. Now, how i can get each name value and put them on tableView.

func getDataFromApi(){
    Alamofire.request("https://api.coinmarketcap.com/v2/listings/").responseJSON{ response in

        if let locationJSON = response.result.value{
            let locationObject: Dictionary = locationJSON as! Dictionary<String, Any>
            for (key, value) in locationObject {
                print("id:\(key), value:\(value)")
            }
        }
    }
}

Answer 1

I would suggest convert the dictionaries response to a Currency object:

class Currency: NSObject {
    var id: Int!
    var name: String!
    var symbol: String!
    var websiteSlug: String!

    init(id: Int, name: String, symbol: String, websiteSlug: String) {
        super.init()

        self.id = id
        self.name = name
        self.symbol = symbol
        self.websiteSlug = websiteSlug
    }
}

Then under the variables' section define the currencies array:

var currencies = [Currency]()

Finaly change the getDataFromApi implementation to this:

func getDataFromApi() {
    Alamofire.request("https://api.coinmarketcap.com/v2/listings/").responseJSON{ response in
        if let locationJSON = response.result.value as? [String: Any] {
            let data = locationJSON["data"] as! [[String: Any]]
            for dataItem in data {
                let currency = Currency(id: dataItem["id"] as! Int,
                                        name: dataItem["name"] as! String,
                                        symbol: dataItem["symbol"] as! String,
                                        websiteSlug: dataItem["website_slug"] as! String)

                self.currencies.append(currency)
            }

            print(self.currencies)
        }
    }
}

I always suggest model the responses to objects because it allows you to do a better managing of the data you need to display on screen and keep your code structure organised.

Now you can easily show the data in a UITableView object from the currencies array.