CODEWITHSUNDEEP
xcodeswift
Sinan Samet
Sinan Samet

Reputation: 6752

Cannot invoke initialiser for type 'JSON' with an argument list of type (data: NSUrlConnection?)

I am getting this error:

Cannot invoke initialiser for type 'JSON' with an argument list of type (data: NSUrlConnection?)

When I try to execute this code:

var url = NSURL(string: "http://****")
var request = NSMutableURLRequest(URL: url!, cachePolicy: NSURLRequestCachePolicy.ReturnCacheDataElseLoad, timeoutInterval: Double.infinity);
if IJReachability.isConnectedToNetwork(){
    request = NSMutableURLRequest(URL: url!, cachePolicy: NSURLRequestCachePolicy.UseProtocolCachePolicy, timeoutInterval: Double.infinity);
}
var response: NSURLResponse?
let data = NSURLConnection?
do {
    data = try NSURLConnection.sendSynchronousRequest(request, returningResponse: &response)
} catch (let e) {
    print(e)
}
if data != nil {
    var dataArray = JSON(data: data)
    let dutch_sentence = dataArray[id]["dutch_sentence"]
    let polish_sentence = dataArray[id]["polish_sentence"]
    let navigationTitle = dutch_sentence.string!.uppercaseString
    self.title = navigationTitle

    //Populate labels
    dutchSentenceLabel.text = dutch_sentence.string!
    polishSentenceLabel.text = polish_sentence.string!

}

I am new to Swift and I am trying to fix the errors out of my code since it is updated but I am having a hard time on it since I am not experienced with the language.. can someone please help me out? I wouldn't be surprised if I messed up the whole code already actually..

I also tried this:

    let url = NSURL(string: "http://****")        
    var request = NSMutableURLRequest(URL: url!, cachePolicy: NSURLRequestCachePolicy.ReturnCacheDataElseLoad, timeoutInterval: Double.infinity);
    if IJReachability.isConnectedToNetwork(){
        request = NSMutableURLRequest(URL: url!, cachePolicy: NSURLRequestCachePolicy.UseProtocolCachePolicy, timeoutInterval: Double.infinity);
    }
    let task = NSURLSession.sharedSession().dataTaskWithRequest(request) { (data, response, error) -> Void in
        var dataArray = JSON(data: data!)
        let dutch_sentence = dataArray[self.id]["dutch_sentence"]
        let polish_sentence = dataArray[self.id]["polish_sentence"]
        let navigationTitle = dutch_sentence.string!.uppercaseString
        self.title = navigationTitle

        //Populate labels
        self.dutchSentenceLabel.text = dutch_sentence.string!
        self.polishSentenceLabel.text = polish_sentence.string!
    }
    task.resume()

It has no errors but I don't know if it is the correct way and if it will work. I have to replace it on a lot of places so I want to be sure about if it works before I do that.

Upvotes: 0

Views: 840

Answers (1)

lane0335
lane0335

Reputation: 125

I believe you were intending to use JSONObjectWithData:options:error

Unless you were doing this using SwiftyJSON. If so, here is an excellent article detailing how to install and use it.

Upvotes: 1

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