Swift API Requests with SLRequest

swiftTwitter.swift

    // The following two functions are based on: https://dev.twitter.com/docs/ios/making-api-requests-slrequest
    func userHasAccessToTwitter() -> Bool {
        return SLComposeViewController.isAvailableForServiceType(SLServiceTypeTwitter)
    }
    
    func fetchTimelineForUser(username: String) {
        if userHasAccessToTwitter() {
            
            var twitterAccountType: ACAccountType = self.accountStore.accountTypeWithAccountTypeIdentifier(ACAccountTypeIdentifierTwitter)
            
            self.accountStore.requestAccessToAccountsWithType(twitterAccountType, options: nil, completion: { finished, error in
                if finished {
                    var twitterAccounts: NSArray = self.accountStore.accountsWithAccountType(twitterAccountType)
                    var url: NSURL = NSURL(string: "https://api.twitter.com/1.1/statuses/user_timeline.json")
                    var params: [String: String] = [ "screen_name" : username,
                    "include_rts" : "0",
                    "trim_user" : "1",
                    "count" : "3"]
                    
                    var apiRequest: SLRequest = SLRequest(forServiceType: SLServiceTypeTwitter, requestMethod: SLRequestMethod.GET, URL: url, parameters: params)
                    apiRequest.account = twitterAccounts.lastObject as ACAccount
                    
                    apiRequest.performRequestWithHandler( { data, response, error in
                        if data {
                            if response.statusCode >= 200 && response.statusCode < 300 {
                                
                                // Used SwiftyJson to parse: https://github.com/lingoer/SwiftyJSON
                                let twitterData = JSONValue(data)
                                
                                if twitterData {
                                    println("Timeline Response: \(twitterData)")
                                } else {
                                    println("JSON Error")
                                }
                            }
                            else {
                                println("Status code: \(response.statusCode) and error: \(error)")
                            }
                        }
                    })
                }
                else {
                    println(error.localizedDescription)
                }
            })
        }
    }