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

Posted by sergio chancay
sergio chancay
Courses Plus Student 2,651 Points

hi, i don't find error

this code appear with error

Callbacks.swift 
import Foundation

// Add your code below
typealias BlogPostCompletion = ((NSData!, NSURLResponse!, NSError!) -> Void)


// Add your code below
func fetchTreehouseBlogPosts (completion: BlogPostCompletion) {
let blogURL = NSURL(string: "http://blog.teamtreehouse.com/api/")
  let requestURL = NSURL(string: "get_recent_summary/?count=20", relativeToURL: blogURL)

  let request = NSURLRequest(URL: requestURL!)

  let config = NSURLSessionConfiguration.defaultSessionConfiguration()
  let session = NSURLSession(configuration: config)

  // Add your code between the comments
let dataTask : NSURLSessionDataTask = session.dataTaskWithRequest(request) {(let data, let response, let error) in 

}
  dataTask.resume()
}

1 Answer

Kristofer Doman
Kristofer Doman
18,307 Points
Kristofer Doman
Kristofer Doman
18,307 Points

There's no error (well from what I can see with a quick glance), but you're not finishing the question, it asks for you to call the methods completion handler, which you haven't done, it's done like this: 

let dataTask : NSURLSessionDataTask = session.dataTaskWithRequest(request) {(let data, let response, let error) in 
     completion(data, response, error)
}