Support for Unix Domain Sockets at the client-side?

[fukaminakrize]

Hi, grpc-dotnet supports UDS at the server-side. Are there plans for supporting UDS at the client-side ?

Thanks!

[JamesNK]

Yes. It will require a planned new feature in .NET 5 - https://github.com/dotnet/corefx/issues/35404

[scalablecory]

This has been resolved via the API added here in .NET 5: dotnet/runtime#41949

[jsmouret]

TLDR;
https://docs.microsoft.com/en-us/aspnet/core/grpc/interprocess?view=aspnetcore-5.0

using System.Net.Http;
using System.Net.Sockets;
using System.Threading;
using Grpc.Net.Client;

public GrpcChannel ForUnixSocket(string path)
{
	var endpoint = new UnixDomainSocketEndPoint(path);
	return GrpcChannel.ForAddress("http://localhost", new GrpcChannelOptions {
		HttpHandler = new SocketsHttpHandler {
			ConnectCallback = async (SocketsHttpConnectionContext _, CancellationToken cancellationToken) => {
				var socket = new Socket(AddressFamily.Unix, SocketType.Stream, ProtocolType.Unspecified);
				try {
					await socket.ConnectAsync(endpoint, cancellationToken).ConfigureAwait(false);
					return new NetworkStream(socket, true);
				} catch {
					socket.Dispose();
					throw;
				}
			}
		}
	});
}