gRPC is an open-source remote procedure call(RPC) framework created by Google. It is an inter-process communication technology based on HTTP/2, that is used for client-server and duplex streaming of data, and this data streaming is highly efficient because of the use of protocol buffers.

What exactly is gRPC?

What is gRPC? gRPC is a modern, open source remote procedure call (RPC) framework that can run anywhere. It enables client and server applications to communicate transparently, and makes it easier to build connected systems.

Why do we need gRPC?

gRPC uses HTTP/2 to support highly performant and scalable API’s and makes use of binary data rather than just text which makes the communication more compact and more efficient. gRPC makes better use of HTTP/2 then REST. gRPC for example makes it possible to turn-off message compression.