gRPC

gRPC (short for Google Remote Procedure Calls) is an open-source remote procedure call (RPC) system that uses HTTP/2 as the transport layer. It is designed to be efficient, lightweight, and easy to use, and enables developers to build high-performance, scalable, and reliable systems by providing a simple and consistent interface for communication between different services.

gRPC uses a version of the Protocol Buffers serialization format to encode and decode messages, which allows for efficient and compact communication over the network. It also provides support for bidirectional streaming, load balancing, and authentication, among other features.

gRPC is used in a wide range of applications and systems, including microservices architectures, distributed systems, and mobile and web applications. It is implemented in many languages, including C++, Java, Python, and Go, and can be used to build APIs and services that can be accessed from any platform or language.