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iOS Build a Weather App with Swift Interacting with Data From the Web Constructing a URL

I'm stuck on this challenge!

The challenge is: 'To access information about a course we can use a URL like: https://api.teamtreehouse.com/course/COURSE_ID. Given the variable treehouseCourseID, create an absolute URL, named courseURL, to retrieve information about a user's progress on a certain course. It should have a path that's relative to the treehouseBaseURL.'

I have attached my code below. What's wrong?

Please HELP ASAP!

Thanks.

urls.swift
import Foundation

let treehouseCourseID = 25

// Add your code below
let treehouseBaseURL = NSURL(string: "https://api.teamtreehouse.com/")
let courseURL = NSURL(string: "https://api.teamtreehouse.com/course/\(treehouseCourseID)", relativeToURL: treehouseBaseURL)

1 Answer

Hello Hammad :

import Foundation


let treehouseCourseID = 25

// Add your code below
let treehouseBaseURL = NSURL(string: "https://api.teamtreehouse.com/“)

// Since the base URL already holds most of the link that does not change, 
// you don’t have to add the whole link, you only add the second part.

let courseURL = NSURL(string: "course/\(treehouseCourseID)", relativeToURL: treehouseBaseURL)

Hope it helps