How do I convert url.query to a dictionary in Swift?

Question

I have a URL coming in to the AppDelegate method:

func application(_ application: UIApplication, open url: URL, sourceApplication: String?, annotation: Any) ->         


        

Answer 1

Here is an example using the Swift reduce function. This will turn a string like 'key1=value1&key2=value2&key3=value3' into a dictionary.

let params = queryString.components(separatedBy: "&").map({
    $0.components(separatedBy: "=")
}).reduce(into: [String:String]()) { dict, pair in
    if pair.count == 2 {
        dict[pair[0]] = pair[1]
    }
}