Swift JSON parsing and printing a specified value from an array - ios

Question

Hi I'm trying to get data from a certain JSON API. I can gat a snapshot of all values from the API, which is shown below. But I can't manage to put a specifiek row in a variable. This is the JSON form which I get. I want to print the "Description" value.Can someone help me with this?
And Hier is my code:
func apiRequest() {
let config = URLSessionConfiguration.default
let username = "F44C3FC2-91AF-5FB2-8B3F-70397C0D447D"
let password = "G23#rE9t1#"
let loginString = String(format: "%#:%#", username, password)
let userPasswordData = loginString.data(using: String.Encoding.utf8)
let base64EncodedCredential = userPasswordData?.base64EncodedString()
let authString = "Basic " + (base64EncodedCredential)!
print(authString)
config.httpAdditionalHeaders = ["Authorization" : authString]
let session = URLSession(configuration: config)
var running = false
let url = NSURL(string: "https://start.jamespro.nl/v4/api/json/projects/?limit=10")
let task = session.dataTask(with: url! as URL) {
( data, response, error) in
if let taskHeader = response as? HTTPURLResponse {
print(taskHeader.statusCode)
}
if error != nil {
print("There is an error!!!")
print(error)
} else {
if let content = data {
do {
let array = try JSONSerialization.jsonObject(with: content, options: JSONSerialization.ReadingOptions.mutableContainers) as AnyObject
print(array)
if let items = array["items"] {
if let description = items["Description"] as? [[String:Any]]{
print(description as Any)
}
}
}
catch {
print("Error: Could not get any data")
}
}
}
running = false
}
running = true
task.resume()
while running {
print("waiting...")
sleep(1)
}
}

Answer 1

First of all the array is not an array and not AnyObject, it's a dictionary which is [String:Any] in Swift 3.
let dictionary = try JSONSerialization.jsonObject(with: content) as! [String:Any]
print(dictionary)
I don't know why all tutorials suggest .mutableContainers as option. That might be useful in Objective-C but is completely meaningless in Swift. Omit the parameter.
The object for key itemsis an array of dictionaries (again, the unspecified JSON type in Swift 3 is Any). Use a repeat loop to get all description values and you have to downcast all values of a dictionary from Any to the expected type.
if let items = dictionary["items"] as? [[String:Any]] {
for item in items {
if let description = item["Description"] as? String {
print(description)
}
}
}

Answer 2

Looks like items is an array that needs to be looped through. Here is some sample code, but I want to warn you that this code is not tested for your data.
if let items = array["items"] as? [[String: AnyObject]] {
for item in items {
if let description = item["Description"] as? String{
print("Description: \(description)")
}
}
}
This code above, or some variation of it, should get you on the right track.

Answer 3

use the SwiftyJSON and it would be as easy as json["items"][i].arrayValue as return and array with items Values or json["items"][i]["description"].stringValue to get a string from a row