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iOS Build a Weather App with Swift (Retired) Pulling Data From the Web Making a Network Call

Posted by Todd Deluca
Todd Deluca
1,352 Points

Problem with making API call for "Stormy"

There was a change in the code and I entered the new code as instructed. However I am getting an error that says I am returning a nil in an unwrapped optional. Since this code was in the teacher's notes and not the video there is no instruction. I don't know how to proceed.

import UIKit

class ViewController: UIViewController {

private let apiKey = "3e04d92db5835cf57669dcf845ce0f27"

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.


    let baseURL = NSURL(string: "https://api.forecast.io/forecast/\(apiKey)/")

    let forecastURL = NSURL(string: "43.064117, -70.762250", relativeToURL: baseURL)

    let weatherData = NSData(contentsOfURL: forecastURL!, options: nil, error: nil)

    println(weatherData)


  }
    override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.

2 Answers

Stone Preston
Stone Preston
42,016 Points
Stone Preston
Stone Preston
42,016 Points

remove the space between the coordinates in your url:

right now you have a space after the comma of your first coordinate:

let forecastURL = NSURL(string: "43.064117, -70.762250", relativeToURL: baseURL)

remove the space: 

let forecastURL = NSURL(string: "43.064117,-70.762250", relativeToURL: baseURL)

URLs cannot have spaces in them, so thats probably why you were getting nil

Bruno Paes Leme
Bruno Paes Leme
1,796 Points
Bruno Paes Leme
Bruno Paes Leme
1,796 Points

Great stuff man, thanks a lot.

Todd Deluca
Todd Deluca
1,352 Points
Todd Deluca
Todd Deluca
1,352 Points

Thank you, that took care of it.

Stone Preston
Stone Preston
42,016 Points
Stone Preston
Stone Preston
42,016 Points

cool glad that fixed it