ios - Swift upload to s3 bucket does not end -


i'm trying upload image bucket. connection made, upload apparently starts not progress. permissions on server consider correct, because android app able upload. in appdelegate have this:

let credentialsprovider = awscognitocredentialsprovider(regiontype: awsregiontype.useast1, identitypoolid: "us-east-1:xxxxxx-xxxx-xxxx-xxxx-xxxx”, unauthrolearn: "arn:aws:iam::xxxxx:role/cognito_mybucketunauth_role", authrolearn: "arn:aws:iam::xxxxx:role/cognito_mybucketauth_role", identityprovidermanager: nil)  let configuration = awsserviceconfiguration(region: awsregiontype.useast1, credentialsprovider: credentialsprovider)         awsservicemanager.defaultservicemanager().defaultserviceconfiguration = configuration

and image , upload

func imagepickercontroller(picker: uiimagepickercontroller, didfinishpickingmediawithinfo info: [string : anyobject]){      //getting details of image     let uploadfileurl = info[uiimagepickercontrollerreferenceurl] as! nsurl      let imagename = uploadfileurl.lastpathcomponent     let documentdirectory = nssearchpathfordirectoriesindomains(.documentdirectory, .userdomainmask, true).first! string      // getting local path     let localpath = (documentdirectory nsstring).stringbyappendingpathcomponent(imagename!)       //getting actual image     let image = info[uiimagepickercontrolleroriginalimage] as! uiimage     let data = uiimagepngrepresentation(image)     data!.writetofile(localpath, atomically: true)      let imagedata = nsdata(contentsoffile: localpath)!     imageurl = nsurl(fileurlwithpath: localpath)      campoimagem.image = image      picker.dismissviewcontrolleranimated(true, completion: nil)     uploadimage() }   func uploadimage(){      //defining bucket , upload file name     let s3bucketname: string = “mybucket"     let s3uploadkeyname: string = "profile/testimage.jpg"      let expression = awss3transferutilityuploadexpression()     /*expression.uploadprogress = {(task: awss3transferutilitytask, bytessent: int64, totalbytessent: int64, totalbytesexpectedtosend: int64) in         dispatch_async(dispatch_get_main_queue(), {             let progress = float(totalbytessent) / float(totalbytesexpectedtosend)             print("progress is: \(progress)")         })     }*/       self.uploadcompletionhandler = { (task, error) -> void in         dispatch_async(dispatch_get_main_queue(), {             if ((error) != nil){                 print("failed error")                 print("error: \(error!)");             }             else{                 print("sucess")             }         })     }      let transferutility = awss3transferutility.defaults3transferutility()      transferutility.uploadfile(imageurl, bucket: s3bucketname, key: s3uploadkeyname, contenttype: "image/jpeg", expression: expression, completionhander: uploadcompletionhandler).continuewithblock { (task) -> anyobject! in         if let error = task.error {             print("error: \(error.localizeddescription)")         }         if let exception = task.exception {             print("exception: \(exception.description)")         }         if let _ = task.result {             print("upload starting!")         }          return nil;     } }

print: upload starting!

i suspect it's when id , permission complete upload aws, think if upload not start, correct? how can solve this?

please check code can check adding credentials in demo project

https://github.com/awslabs/aws-sdk-ios-samples/blob/master/s3transferutility-sample/swift/s3backgroundtransfersampleswift/firstviewcontroller.swift


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