Stream content as request content #2167

I'm frustrated when i am using this library to upload a file to GCP Storage.

RestSharp 110.2.0 do have an method AddFile(parameterName, getFile, fileName, contentType) to supply a IO stream to body. However, RestSharp compose the request into multipart/formdata causes GCP Storage API to write the content into the file.

Using native .NET HttpClient allows me to compose the IO stream as stream content
var request = new HttpRequestMessage { Content = new StreamContent(sourceFileStream), };
which flawlessly achieved the goal.

And yes, I understand that using AddParameter(parameterName, rawByteArray, ParameterType.RequestBody) can achieve that, but when the byte array is too big, it going to eat up a lot of memory.

Therefore, allowing passing ContentStream as request content is really important.

Disclaimer:
I might missing some method in RestSharp to achieve that. Your help is much appreciated