Kasun Indrasiri & Danesh Kuruppu 
gRPC: Up and Running [PDF ebook] 
Building Cloud Native Applications with Go and Java for Docker and Kubernetes

Get a comprehensive understanding of g RPC fundamentals through real-world examples. With this practical guide, youll learn how this high-performance interprocess communication protocol is capable of connecting polyglot services in microservices architecture, while providing a rich framework for defining service contracts and data types.Complete with hands-on examples written in Go, Java, Node, and Python, this book also covers the essential techniques and best practices to use g RPC in production systems. Authors Kasun Indrasiri and Danesh Kuruppu discuss the importance of g RPC in the context of microservices development.