gRPCd
gRPCd is a component within the gRPC ecosystem that acts as a server implementation. It is not a standalone, distinct product but rather a way of describing a server that uses the gRPC framework to expose services. When developers build a gRPC application, they define services and their methods using Protocol Buffers. A gRPC server then implements these services, and gRPCd refers to the runtime environment and code that handles incoming gRPC requests, deserializes messages, invokes the appropriate service methods, and serializes the responses back to the client. Essentially, gRPCd is the server-side manifestation of a gRPC service. It leverages the underlying gRPC libraries and the chosen transport protocol (typically HTTP/2) to manage communication. Different programming languages have their own gRPC server libraries that effectively function as gRPCd for that specific language. These libraries provide the necessary tools to build, configure, and run a gRPC server, enabling efficient, high-performance communication between distributed systems. The term "gRPCd" itself is not a formal product name but a descriptive term used to denote the server aspect of gRPC.