I'm having issues parsing the JSON I'm getting back from the Wiki API.
Podfile:
platform :ios, ’10.0’
inhibit_all_warnings!
use_frameworks!
target 'GemFinder' do
pod 'Alamofire', '~> 4.0’
pod 'SwiftyJSON', :git => 'https://github.com/appsailor/SwiftyJSON.git', :branch => 'swift3'
end
Swift Code:
import UIKit
import Alamofire
import SwiftyJSON
class WikiAPI: NSObject {
func MineralRequest(minID: (String)) {
Alamofire.request("https://en.wikipedia.org/w/api.php?action=query&titles=\(minID)&exintro=1&prop=pageimages%7Cextracts&format=json&pithumbsize=300", parameters: ["query": "pages"]).responseJSON { response in
if let values = response.result.value as? [String: AnyObject] {
let json = JSON(values)
// Returns null
print("otherJSON: \(json["query"]["pages"][0]["extract"])")
let JSONvalues = values as NSDictionary
print("JSONvalues: \(JSONvalues)")
// This is also working to retrieve everything from below "query"
let parse = JSONvalues.object(forKey: "query")
print("Parse: \(parse)")
let queryValues = values["query"]
// Returns nested "pages" object, but I need to go deeper.
print("queryvalues: \(queryValues?["pages"])")
}
}
}
}
I'm able to get a response, of course, and trying to go deeper, but I keep getting null values when trying to unwrap.
What am I missing? Here's an image of the tree. I'm trying to pull title, images and the extract out.
Following this format, as seen here, still yields null values. Parameters didn't seem to benefit either: How do I access a nested JSON value using Alamofire and SwiftyJSON?
"pages" value is a dictionary so using [0]
on it won't work, you need to use the key instead:
print("otherJSON: \(json["query"]["pages"]["1895477"]["extract"])")
Or if there are many items in pages and you want them all you can iterate through it like:
let pages = json["query"]["pages"]
for (_,page) in pages {
print(page["extract"])
}