private static async Task SendFileMetadata(string fileName, AsyncClientStreamingCall <StartUploadRequest, StartUploadResponse> call)
{
var fileMetadataRequest = new StartUploadRequest()
{
FileMetadata = new FileMetadata
{
FileName = fileName
}
};
await call.RequestStream.WriteAsync(fileMetadataRequest);
}
private static async Task SendFilePayload(string sourceFile, AsyncClientStreamingCall <StartUploadRequest, StartUploadResponse> call, CancellationToken cancellationToken)
{
var chunksize = 0x1F400;
byte[] chunk = new byte[chunksize];
Memory <byte> memory = new Memory <byte>(chunk);
await using (FileStream fileToUpload = new FileStream(sourceFile, FileMode.Open, FileAccess.Read, FileShare.Read, chunksize))
{
int bytesRead = 0;
while ((bytesRead = await fileToUpload.ReadAsync(memory, cancellationToken)) > 0)
{
var filePayloadRequest = new StartUploadRequest()
{
FilePayload = new FilePayload
{
Chunk = Google.Protobuf.ByteString.CopyFrom(memory.Slice(0, bytesRead).Span)
}
};
await call.RequestStream.WriteAsync(filePayloadRequest);
}
}
}
