This tutorial is mainly meant for REST API developers, who want to learn how to develop a GraphQL client. It is a comparison of a RestTemplate and GraphQL client. — Let's consider a use case where we have an application we call “producer”, which manages information about a customer. This application exposes REST API and GraphQL. The REST API has GET, POST, PUT, PATCH, and DELETE methods which return, create, update, partially update, and delete the customer accordingly. This application…