nunzio giulio caggegi nunzio giulio caggegi - 1 year ago 90
Swift Question

Swift POST request don't work

I'm trying to make a post request with Swift. my goal is to post the accesstoken facebook to a server but does not work. here's the code:

let myUrlfb = NSURL(string: "MyApiServer");

let requestfb = NSMutableURLRequest(URL:myUrlfb!);

requestfb.HTTPMethod = "POST";// Compose a query string

//costruiamo la stringa della post
let postStringfb = FBSDKAccessToken.currentAccessToken().tokenString

requestfb.HTTPBody = postStringfb.dataUsingEncoding(NSUTF8StringEncoding);

let task = NSURLSession.sharedSession().dataTaskWithRequest(requestfb) {
data, response, error in

if error != nil


the answer is as follows:

{"statusCode":400,"error":"Bad Request","message":"child \"access_token\" fails because [access_token is required]","validation":{"source":"payload","keys":["access_token"]}})

Answer Source

Here this way you can consume POST web services:

func webApi() {
            let request = NSMutableURLRequest(URL: NSURL(string: "your url")!)
                    request.HTTPMethod = "POST"

            var string = "access_token="
            var postString =       string.stringByAppendingString(FBSDKAccessToken.currentAccessToken().tokenString)
                request.HTTPBody = postString.dataUsingEncoding(NSUTF8StringEncoding)
                let task = NSURLSession.sharedSession().dataTaskWithRequest(request) { data, response, error in
                    guard error == nil && data != nil else {                                                          // check for fundamental networking error

                    if let httpStatus = response as? NSHTTPURLResponse where httpStatus.statusCode != 200 {           // check for http errors
                        print("statusCode should be 200, but is \(httpStatus.statusCode)")
                        print("response = \(response)")

                    let responseString = NSString(data: data!, encoding: NSUTF8StringEncoding)
                    print("responseString = \(responseString)")

    }//End of webapi function
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