斯威夫特：意外地发现零

Question

I'm not sure where the nil value is here. I also tried explicitly allocating the error var and still had the issue. The code is taken almost directly from Twitter documentation.

let statusesShowEndpoint = "https://api.twitter.com/1.1/users/profile_banner.json?"
let params = ["screen_name":"twitter"]
var clientError :NSError?

let request = Twitter.sharedInstance().APIClient.URLRequestWithMethod(
            "GET", URL: statusesShowEndpoint, parameters: params,
           error: &clientError)

    if request != nil {
        Twitter.sharedInstance().APIClient.sendTwitterRequest(request) {
                (response, data, connectionError) -> Void in
                if (connectionError == nil) {
                    var jsonError : NSError?
                    let json : AnyObject? =
                    NSJSONSerialization.JSONObjectWithData(data,
                        options: nil,
                        error: &jsonError)
                }
                else {
                    println("Error: \(connectionError)")
                }
        }
    }
    else {
        println("Error: \(clientError)")
    }

I get this error on the request:

fatal error: unexpectedly found nil while unwrapping an Optional value

Answer 1

I haven't spent much time with the twitter api, but the http endpoint you are trying to access requires that you have the qAuth authority have you done this? as the http link is coming back "bad authentication data" when i try to access it