In this blog, we are going to see how we can use Postman for GraphQL APIs. And we will learn this by implementing a complete checkout process on a Magento eCommerce website. Before moving forward, let's see what is GraphQL. What is GraphQL? GraphQL is a data query language developed internally by Facebook in 2012 before being publicly released in 2015. Magento implements GraphQL to provide an alternative to REST and SOAP web APIs for front-end development. How to access Magento's GraphQL APIs? You can use any GraphQL IDE like GraphiQL or Postman . Or you can install chrome extensions ( GraphiQL extension ) for accessing GraphQL APIs. Among all the above options we are going to learn how to access GraphQL using Postman. How to use Postman for GraphQL APIs? Let's start learning a fresh tab in Postman. Once you install postman, you will be able to see as below screenshot. Now please follow the below steps to use GraphQL in Postman. Get the GraphQL endpoint. For example