Sample grpcurl request needed for faster debugging

[shim1998]

Is your feature request related to a problem? Please describe. A clear and concise description of what the problem is. Ex. I'm always frustrated when [...] Require a sample grpcurl request so that i am able to benchmark grpc server version of FEAST. Describe the solution you'd like A clear and concise description of what you want to happen. A simple bash file which contains how a grpcurl request would look like and the method call name as well as the proto file name would be really helpful. Describe alternatives you've considered A clear and concise description of any alternative solutions or features you've considered.

Additional context Add any other context or screenshots about the feature request here. a sample json file will be useful too.