Communicating between Node.js microservices with gRPC

In the context of modern web development, the microservices architecture is favored over traditional monolithic structures for its flexibility and scalability, commonly implemented using APIs for communication. Node.js, with its rich libraries and developer tools, is an ideal platform for building microservices, and gRPC (Google RPC) serves as a robust framework for communication between these services, utilizing HTTP/2 and Protobuf serialization. The text provides a tutorial on implementing a microservices communication system using Node.js and gRPC, detailing the creation of three interconnected microservices: a main service that handles food orders via a RESTful API, a recipe selector service, and an order processor service. The tutorial covers setting up the project, defining services with Protobuf, developing and testing gRPC servers with Postman, and finalizing the system with a RESTful interface. The Node.js gRPC API, implemented purely in JavaScript, offers a developer-friendly approach with features like automatic reconnections and client interceptors, and it supports various RPC communication types, including unary and streaming RPCs.