HTTP Requests - Swift

http_requests.swift

func JSONParseDict(jsonString:String) -> Dictionary<String, AnyObject> {
    var e: NSError?
    var data: NSData = jsonString.dataUsingEncoding(
                                               NSUTF8StringEncoding)
    var jsonObj = NSJSONSerialization.JSONObjectWithData(
                      data,
                      options: NSJSONReadingOptions(0),
                      error: &e) as Dictionary<String, AnyObject>
    if e {
        return Dictionary<String, AnyObject>()
    } else {
        return jsonObj
    }
}

func HTTPGetJSON(
    url: String,
    callback: (Dictionary<String, AnyObject>, String?) -> Void) {
    var request = NSMutableURLRequest(URL: NSURL(string: url))
    request.setValue(“application/json”, forHTTPHeaderField: “Accept”)
    HTTPsendRequest(request) {
        (data: String, error: String?) -> Void in
        if error {
            callback(Dictionary<String, AnyObject>(), error)
        } else {
            var jsonObj = JSONParseDict(data)
            callback(jsonObj, nil)
        }
    }
}

HTTPGetJSON(“http://gdata.youtube.com/feeds/api/standardfeeds/most_popular?v=2&alt=json") {
    (data: Dictionary<String, AnyObject>, error: String?) -> Void in
    if error {
        println(error)
    } else {
        if let feed = data[“feed”] as? NSDictionary {
            if let entries = feed[“entry”] as? NSArray {
                for elem: AnyObject in entries {
                    let dict = elem as NSDictionary
                    if let titledict = dict[“title”] as? NSDictionary {
                        if let title = titledict[“$t”] as? NSString {
                            println(title)
                        }
                    }
                }
            }
        }
    }
}