This article is based on Ballerina Swan Lake Update 7.2. Today, I want to share insights into implementing GraphQL subgraphs in Ballerina. But before we dive into coding, let's take a moment to understand GraphQL federation and the problems it solves. Ballerina Swan Lake WSO2 is an open-source and cloud-native programming language optimized for integration GraphQL Federation is a way to build a unified GraphQL API by combining multiple GraphQL services.

Have you heard this quote from Edwards Deming? – “In God we trust, all others bring data.” In today’s competitive landscape, if you’re not measuring your performance and closely analyzing each relevant data point, you’re not going to see much success with your strategies. This is the golden rule no matter what type of business you run – whether you’re a small, local jewelry store or Coca-Cola. And KPIs (key performance indicators) help us do just that.

Data democratization can feel like just another business buzzword. But beyond the buzz, it represents an important concept: when your employees lack access to the data they need for decision-making, decisions will stall and your business will suffer. Getting value from your data—and delivering that across your organization—is a persistent challenge. Getting value from your data—and delivering that across your organization—is a persistent challenge.

Two names that have been making waves with their distinct approaches to building web apps are Next.js and Vite.js. Next.js is a React framework specialized in server-side rendering (SSR), static site generation (SSG), and hybrid applications. It provides features like file-based routing, image optimization, and is particularly suited for projects where SEO and fast initial load times are priorities.

Working as a software tester, are you sometimes tired of the repetitive and time-consuming nature of the whole process? If yes, a data-driven framework is exactly what you need. A data-driven framework in Selenium is an approach to automated testing that separates test scripts from test data, enabling testers to run the same test script with different data inputs.