Empty streams are not supported

[zibizz1]

minio-dotnet/Minio/DataModel/Args/PutObjectArgs.cs

Line 72 in 56d687f

if (ObjectStreamData is not null && ObjectSize == 0)

I would like to upload empty file but providing streams and 0 object size results in exception.

Maybe object size should be "long?" type or different way should be used to check if object Size was set (other than comparing with 0)

[Lukas-EyeC]

I have the same issue right now

[fissssssh]

same problem when I want to create a directory like some_directory/

[Lukas-EyeC]

My workaround for the empty file was:

if( data.Length == 0 )
{
	var tempFileName = Path.GetTempFileName();
	await m_minio.PutObjectAsync(
		new PutObjectArgs().WithBucket( key.Bucket ).WithObject( key.Key ).WithFileName( tempFileName ) );
	return;
}

[fissssssh]

My workaround for the empty file was:

if( data.Length == 0 )
{
	var tempFileName = Path.GetTempFileName();
	await m_minio.PutObjectAsync(
		new PutObjectArgs().WithBucket( key.Bucket ).WithObject( key.Key ).WithFileName( tempFileName ) );
	return;
}

#612 I think this PR is not reasonable. The ObjectSize should be defined as a long? type, and it should be checked for null rather than 0.

I tried using your method, and it worked. Thank you.