rpc-spring-boot-starter | rpc framework , support Java serialization

I've created a simple test gRPC server(Java, Spring) to test the technology.

When trying to call a function from the server I am getting an error { "error": "2 UNKNOWN: Stream removed" }

image of error from blumRpc

Inside the application, no stack trace is printed, I can't catch the program execution using breakpoint invisible for me code

I have a Spring Boot micro-service which listens through GRPC using LogNet/grpc-spring-boot-starter

By default GRPC payload maximum size is 4MB. At client side, it's easy to set the response payload size, but I want to increase the request size at the server side.

At client side,

I'm new to gRpc, I'm trying to use it between a Java 11(Spring Boot 2) server and a Java 8 (Spring Boot 1.5) client using gRpc 1.27.1 and protobuf 3.11.

Here is my setup:

I have data model library with just 1 proto definition file and maven files to generate java source code that is shared between the client and the server

The relevant parts of the pom.xml:

I am trying to set up Spring Boot microservices which will communicate via gRPC. I am using the LogNet (https://github.com/LogNet/grpc-spring-boot-starter) Spring Boot starter and am trying to figure out how to have a client/consumer service "connect" to a server/producer service without using service discovery (e.g. Eureka).

I have not been able to find information on how to configure the producer to listen to a port that I specify.

I would then attempt to connect to it from the consumer with code like the following:

I am implementing a gRPC API using LogNet grpc-spring-boot-starter.

I want to return, for instance, an INVALID_ARGUMENT error code when an incorrect argument has been passed.

If I throw a custom exception it ends up with io.grpc.StatusRuntimeException: UNKNOWN.

Q: Is it possible to define some exception handling mechanism so that exceptions of a particular type will always lead to correct gRPC statuses?

There is unfortunately not so much documentation in the project.

I want to create a Reactor Flux from a gRPC StreamObserver. This needs to be done as long as StreamObserver does not implement the respective interfaces natively (see e.g. this issue).

What I came up with is roughly like the following:

I am trying to use the LogNet/grpc-spring-boot-starter to test using Spring Boot with gRPC. It seems like all the Spring Boot/gRPC examples have the spring-boot-starter-web module included in the build. Is that starter module required in order for the server class annotated with @GRpcService to be always active when started as a Spring Boot jar?

Thanks very much,

Steve