Querying Data With GraphQL & Ballerina

Querying Data With GraphQL & Ballerina

GraphQL is a technology that makes data querying tasks much more efficient and intuitive for the users. Here, we have looked at how it solves potential problems such as data over-fetching and solves network latency problems that can arise in a services-based solution. Ballerina provides built-in support for implementing GraphQL services in a quick and easy manner, where the user can just concentrate on the business logic.

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.

graphql querying data ballerina

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