gRPC is an open source remote procedure call (RPC) system

developed at Google.

▪ gRPC is a framework to efficiently connect services and build

distributed systems.

▪ It is focused on high performance and uses the HTTP/2 protocol to

transport binary messages.

▪ It is relies on the Protocol Buffers language to define service contracts.

▪ Protocol Buffers (Protobuf), allow to define the interface to be used in

service to service communication regardless of the programming

language.

▪ It generates cross-platform client and server bindings for many

languages.

▪ Most common usage scenarios include connecting services in

microservices style architecture.

https://grpc.io/