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iOS Build a Weather App with Swift Managing Complexity Callback Methods With Closures

Girri M Palaniyapan
Girri M Palaniyapan
7,829 Points
Posted by Girri M Palaniyapan
Girri M Palaniyapan
7,829 Points

Please help check code. Unclear why code is wrong.

Hi, I think I am doing the steps right, I keep on getting the same error message asking me to check whether the method's name and syntax is right.

Callbacks.swift 
import Foundation

class NetworkOperation {
    lazy var config : NSURLSessionConfiguration = NSURLSessionConfiguration.defaultSessionConfiguration()
    lazy var session : NSURLSession = NSURLSession(configuration: self.config)

    let queryURL: NSURL

    init(url: NSURL){
        self.queryURL = url
    }
    typealias BlogPostCompletion = ([String:AnyObject]? -> ())

    func fetchTreehouseBlogPosts (completion: BlogPostCompletion) {
        let request: NSURLRequest = NSURLRequest(URL: queryURL)
        let dataTask = session.dataTaskWithRequest(request) {
            (let data, let response, let error) in
            if let httpResponse = response as? NSHTTPURLResponse {
                switch(httpResponse.statusCode){
                case 200:
                    //Create a JSON object from the data
                    let jsonDictionary = NSJSONSerialization.JSONObjectWithData(data , options: nil , error: nil) as? [String: AnyObject]
                    completion(jsonDictionary)



                default: "GET Request not successful. Error code is \(httpResponse)"
                }


            } else {
                println("Error: Not a valid HTTP response")
            }



        }




        dataTask.resume()

    }}
James Hoffman
James Hoffman
6,354 Points
James Hoffman
James Hoffman
6,354 Points

Only problem I see is that you are missing the println statement here: default: "GET Request not successful. Error code is (httpResponse)" Hope this helps!