What is gRPC and How to Implement It? — gRPC with Microservice Architecture

gRPC is a framework developed by Google for Remote Procedure Call, meaning it allows us to use a method in another service or a remote server as if it were a method of our own service. It provides an easy and fast way for communication in client-server relationships.

RPC is a method that has existed for a long time. So, it’s not a new concept, but with HTTP/2, it has become quite usable and beneficial for inter-service communication through collaboration with Google. RPC can be generally defined as the client directly executing a function/method in the service. gRPC is an open-source and free framework developed by Google and is part of the Cloud Native Computing Foundation (CNCF) ecosystem.

At a high level, methods and procedures are defined for gRPC, and the framework handles everything else.

What is Protocol Buffer (ProtoBuf)?

gRPC is the communication protocol that serializes data in binary format. You can define the methods and messages of the services, and gRPC generates the code for you and makes it easy to use. All that’s left for us is to implement the logic.