RPC is a form of Client-Server Communication that

uses a function call rather than a usual HTTP call.

▪ In GRPC, client application can directly call a method on

a server application on a different machine like a local

object.

▪ gRPC is based on the idea of defining a service and

methods, and these can be called remotely with their

parameters and return types.

▪ On the server side, the server implements this interface

and runs a gRPC server to handle client calls.

▪ On the client side, the client has a stub that provides the

same methods as the server.

▪ gRPC clients and servers can work and talk to each

other in a different of environments.

https://medium.com/@xenonstack/grpc-adoption-and-working-architecture-f18568452f30