Book Image

Building RESTful Web services with Go

By : Naren Yellavula
Book Image

Building RESTful Web services with Go

By: Naren Yellavula

Overview of this book

REST is an architectural style that tackles the challenges of building scalable web services and in today's connected world, APIs have taken a central role on the web. APIs provide the fabric through which systems interact, and REST has become synonymous with APIs. The depth, breadth, and ease of use of Go, makes it a breeze for developers to work with it to build robust Web APIs. This book takes you through the design of RESTful web services and leverages a framework like Gin to implement these services. The book starts with a brief introduction to REST API development and how it transformed the modern web. You will learn how to handle routing and authentication of web services along with working with middleware for internal service. The book explains how to use Go frameworks to build RESTful web services and work with MongoDB to create REST API. You will learn how to integrate Postgres SQL and JSON with a Go web service and build a client library in Go for consuming REST API. You will learn how to scale APIs using the microservice architecture and deploy the REST APIs using Nginx as a proxy server. Finally you will learn how to metricize a REST API using an API Gateway. By the end of the book you will be proficient in building RESTful APIs in Go.
Table of Contents (20 chapters)
Title Page
Credits
About the Author
Acknowledgments
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Introduction to GRPC


GRPC is a transport mechanism that sends and receives messages between two systems. These two systems are traditionally a server and a client. As we described in the previous chapters, RPC can be implemented in Go for transferring JSON. We called it a JSON RPC service. Similarly, Google RPC is specially designed to transfer data in the form of protocol buffers. 

GRPC makes the service creation easy and elegant. It provides a nice set of APIs to define services and start running them. In this section, we will mainly focus on how to create a GRPC service and use it. The main advantage of GRPC is that it can be understood by multiple programming languages. Protocol buffers provide a common data structure. So, the combination enables the seamless communication between various tech stacks and systems. This is the integral concept of distributed computing.

Square, Netflix, and so on leverage this GRPC to scale their huge traffic-prone services. Google's former product manager...