UploadFileForUser using Stream as parameter(Unity 3D)

Question

Hi!

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

Code:

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

Stream ReadStream(byte[] bytes){
        Stream s = new MemoryStream();
        for (int i = 0; i < bytes.Length; i++)
        {
            s.WriteByte(bytes[i]);
        }
        s.Position = 0;
        s.Close();
        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());

Error:

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? :)

Answer 1

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);

 

Thanks

/Naresh