UploadFileForUser using Stream as parameter(Unity 3D)

0 votes


Using url(string) as parameter, works correctly, but using Stream it doesn't.


//give to ReadStream() the picture in bytes...

Stream ReadStream(byte[] bytes){
        Stream s = new MemoryStream();
        for (int i = 0i < bytes.Lengthi++)
        s.Position = 0;
        return s;


And send it:

Stream stream = GetStream(); //here does many things and finally ReadStream to get the bytes array

uploadService.UploadFileForUser("picture","name",stream,UploadFileType.IMAGE,"picture description",new UploadPictureCallBack());


NullReferenceException: Object reference not set to an instance of an object

com.shephertz.app42.paas.sdk.csharp.connection.RESTConnectorWWW.ExecuteMultipart (System.String name, System.IO.Stream stream, System.Collections.Generic.Dictionary`2 queryParams, System.Collections.Generic.Dictionary`2 postParams, System.Collections.Generic.Dictionary`2 headerParams, System.String url, System.String accept, App42CallBack callBack)
com.shephertz.app42.paas.sdk.csharp.upload.UploadService.UploadFile (System.String name, System.IO.Stream inputStream, System.String fileType, System.String description, App42CallBack callBack)
PictureUploader.UploadProfilePicture (System.IO.Stream stream) (at Assets/EtorkiGames/Assets/Scripts/Others/PictureUploader.cs:74)
PictureUploader.Update () (at Assets/EtorkiGames/Assets/Scripts/Others/PictureUploader.cs:22)
Any help? :)
asked Aug 22, 2014 in App42 Cloud API-BaaS by etorkigames (25 points)

1 Answer

0 votes
Hi Etorkigames,
This exception occurs when your Stream object is empty or null as shown in below code snippet.
Stream stream  = new MemoryStream();
upload.UploadFile("File-1",stream,"image","My File",callBack);
Please use correct Stream object something like this and pass proper stream object pointing to valid file.
Stream stream  = new FileStream(@"C:\Users\Public\Pictures\Sample Pictures\Koala.jpg", FileMode.Open);
upload.UploadFile("File-1",stream,"image","My File",callBack);


answered Aug 23, 2014 by naresh (350 points)
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