GraphQL Made Easy With Ballerina

Introduction

GraphQL has become a prominent technology in implementing data APIs. It provides a convenient and intuitive approach for querying data. Let’s look at a sample use case using the Ballerina programming language and see how GraphQL compares to other traditional approaches such as implementing REST-style HTTP APIs. 

Use Case: E-commerce Data Query

Let’s take a typical e-commerce scenario of processing orders in an online store. The entity-relationship diagram below shows a typical representation that can be used in a relational database. This is of course a simplified representation of a real-life implementation. 

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