Have you used gRPC in your projects for inter-server communication?

Yes, I have used gRPC for inter-server communication in projects. gRPC is a modern remote procedure call (RPC) framework that uses HTTP/2 and Protocol Buffers for efficient data serialization.

Advantages of gRPC:

• High performance and low latency thanks to HTTP/2
• Support for streaming data in both directions
• Automatic generation of client and server code from .proto files

In projects, gRPC was used for message exchange between microservices, where fast and type-safe communication was required.

Example of defining a service in a .proto file:

service UserService {
  rpc GetUser (UserRequest) returns (UserResponse);
}

This makes it easy to create and maintain scalable distributed systems.