So what are gRPC and Protobuf? gRPC is a modern, open source remote procedure call (RPC) framework that can run anywhere. It enables client and server applications to communicate transparently and makes it easier to build connected systems. gRPC is incubating in CNCF. As a fun project, build a streaming server in JSON over HTTP. javax.jms.JMSException - Wire format negociation timeout - peer did not send his wire format. FAQ > Errors > Exceptions > javax.jms.JMSException - Wire format negociation timeout - peer did not send his wire format. In this post, I want to focus on the implementation of server streaming and client consumption of the stream when using gRPC with .NET Core. The samples in this post are based on versions you can find in my complete demo application up on my gRPC Demos GitHub repository.