Issue with Azure chunked upload to fileshare via Azure.Storage.Files.Shares library

Question

I\'m trying to upload files to an Azure fileshare using the library Azure.Storage.Files.Shares.

If I don\'t chunk the file (by making a single UploadRange call) it w

Answer 1

I was able to reproduce the issue. Basically the problem is with the following line of code:

new HttpRange(0, uploadChunk.Length)

Essentially you're always setting the content at the same range and that's why the file is getting corrupted.

Please try the code below. It should work. What I did here is defined the HTTP range offset and moving it constantly with number of bytes already written to the file.

        using (FileStream stream = fileInfo.OpenRead())
        {
            file.Create(stream.Length);

            //file.UploadRange(new HttpRange(0, stream.Length), stream);

            int blockSize = 1 * 1024;
            long offset = 0;//Define http range offset
            BinaryReader reader = new BinaryReader(stream);
            while (true)
            {
                byte[] buffer = reader.ReadBytes(blockSize);
                if (buffer.Length == 0)
                    break;

                MemoryStream uploadChunk = new MemoryStream();
                uploadChunk.Write(buffer, 0, buffer.Length);
                uploadChunk.Position = 0;

                HttpRange httpRange = new HttpRange(offset, buffer.Length);
                var resp = file.UploadRange(httpRange, uploadChunk);
                offset += buffer.Length;//Shift the offset by number of bytes already written
            }

            reader.Close();
        }