This removes much of the work needed compared to implementing REST-style APIs. You will see how easy it is to prepare the server for responding to different queries. The server will run using Node and Express and the client will be based on Angular 7. In this tutorial, I will be showing you how to develop a simple GraphQL web application. A single request in GraphQL can contain multiple queries to the underlying model. Using GraphQL you will typically have only a single endpoint, and the client can explicitly state which data should be returned.

In REST APIs you will have a different endpoint for each type of resource and the response to the request is determined by the server. The main difference between traditional REST and GraphQL is the way queries are sent to the server. Some regard it as a new revolutionary way of creating web APIs. During the last three years, it has created quite a stir.

GraphQL is a query language that was invented by Facebook and released to the public in 2015. Recently a new concept has emerged, GraphQL.

During the past 10 years or so, the concept of REST APIs for web services has become the bread and butter for most web developers.

Express graphql