NSURLSession send parameters with get

I’m trying to parse information from a php, but i need to send a dictionary parameter so i try things … i saw tutorials,examples but i’m stuck so i went back to the start: (What it’s the good way for do this?)

       func asd(){
    let urlPath = "http://xxxxx.php"

    let url: NSURL = NSURL(string: urlPath)

    let request = NSMutableURLRequest(URL: url)
    request.HTTPMethod = "GET"
    var parm = ["id_xxxx": "900"] as Dictionary

    //I THINK MY PROBLEM IT'S HERE! i dont know how to link parm with session, i try is with session.uploadTaskWithRequest(<#request: NSURLRequest?#>, fromData: <#NSData?#>) but doesn't work

    let session = NSURLSession.sharedSession()
    let task = session.dataTaskWithURL(url, completionHandler: {data, response, error -> Void in
        println("Task completed")
        if(error) {
            // If there is an error in the web request, print it to the console
        var err: NSError?
        var jsonResult = NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers, error: &err) as NSDictionary
        if(err?) {
            // If there is an error parsing JSON, print it to the console
            println("JSON Error \(err!.localizedDescription)")
        let results: NSArray = jsonResult["x"] as NSArray
        dispatch_async(dispatch_get_main_queue(), {
            self.tableData = results


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  • 4 Solutions Collect From Internet About “NSURLSession send parameters with get”

    GET data needs to be part of the url’s query string. Some methods will accept a dictionary of parameters for POST/PUT requests, but these methods will not add the dictionary to the url for you if you’re using the GET method.

    If you’d like to keep your GET parameters in a Dictionary for cleanliness or consistency, consider adding a method like the following to your project:

    func buildQueryString(fromDictionary parameters: [String:String]) -> String {
        var urlVars:[String] = []
        for (k, value) in parameters {
            if let encodedValue = value.stringByAddingPercentEncodingWithAllowedCharacters(NSCharacterSet.URLQueryAllowedCharacterSet()) {
                urlVars.append(k + "=" + encodedValue)
        return urlVars.isEmpty ? "" : "?" + urlVars.joinWithSeparator("&")

    This method will take a dictionary of key/value pairs and return a string you can append to your url.

    For example, if your API requests allow for multiple request methods (GET/POST/etc.) you’ll only want to append this query string to your base api url for GET requests:

    if (request.HTTPMethod == "GET") {
        urlPath += buildQueryString(fromDictionary:parm)

    If you’re only making GET requests, there’s no need to check for which method you’ll be using to send your data.

    @paul-mengelt’s answer in Objective C:

    -(NSString *) buildQueryStringFromDictionary:(NSDictionary *)parameters {
        NSString *urlVars = nil;
        for (NSString *key in parameters) {
            NSString *value = parameters[key];
            value = [value stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLHostAllowedCharacterSet]];
            urlVars = [NSString stringWithFormat:@"%@%@=%@", urlVars ? @"&": @"", key, value];
        return [NSString stringWithFormat:@"%@%@", urlVars ? @"?" : @"", urlVars ? urlVars : @""];

    Adapted for Swift 3

      static func buildQueryString(fromDictionary parameters: [String:String]) -> String {
        var urlVars:[String] = []
        for (k,value) in parameters {
            if let encodedValue = value.addingPercentEncoding(withAllowedCharacters: CharacterSet.urlQueryAllowed) {
                urlVars.append(k + "=" + encodedValue)
        return urlVars.isEmpty ? "" : "?" + urlVars.joined(separator: "&")

    Bit crazy that none of the answers here suggest using NSURLComponents and NSURLQueryItem objects. That is the safest and most modern way to do this.

    var iTunesSearchURL = URLComponents(string: "https://itunes.apple.com/search")!
    iTunesSearchURL.queryItems = [URLQueryItem(name: "term", value: trackName),
                                  URLQueryItem(name: "entity", value: "song"),
                                  URLQueryItem(name: "limit", value: "1")]
    let finalURL = iTunesSearchURL.url