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.

We're excited to share that deploying applications with buildpacks is now available on the Choreo platform. This empowers users to build their applications on the cloud faster and more easily than before.

In today's evolving technology landscape, businesses are increasingly recognizing the potential of migrating legacy systems to the cloud. Even though they are the backbone of many organizations, legacy systems and services deployed via on-premises servers often need help to keep up with modern business requirements. Cloud migration offers a transformative opportunity to enhance scalability, flexibility, and efficiency, while enabling access to a wealth of innovative services.

In the past, enterprise software focused on protecting network access through on-premises firewalls and VPNs, working on the assumption that everything within the network was secure. However, today, as accessing data has extended beyond on-premises locations to cloud and hybrid networks, SaaS platforms require a security model that can address a broader range of attack vectors. Zero Trust security addresses this pressing need.

As the technology landscape continues to rapidly evolve, creating a platform that introduces the correct abstractions for software development and delivery has become an increasingly compelling proposition. But the pivotal question remains: is building what’s known as an internal developer platform (IDP) or digital platform in-house the right move for your organization? The choice isn't merely technical; it's strategic.

Choreo now allows you to specify WSO2’s Micro Integrator runtime version and update level when deploying integrations. Previously, Choreo defaulted all deployments of WSO2 Micro Integrator projects to a specific runtime version and update level. With this improvement, developers can specify the exact runtime version and update level required for their integrations. This improvement simplifies the development and troubleshooting process for integration developers.

We're delighted to unveil Choreo API Chat, Choreo's innovative approach to interacting with APIs, powered by Generative Pre-trained Transformer (GPT) 3.5 large language model (LLM) from Azure OpenAI. This allows users to try out APIs running or proxied via Choreo using natural language, serving as a complementary tool to traditional methods. It offers a convenient way to quickly try out endpoints without delving deeply into API specifications or crafting intricate JSON payloads.

Choreo is an internal developer platform where you can develop, deploy, and manage your cloud native applications with minimal effort. Authentication and authorization are essential to consider when restricting access to your application. Determining the legitimacy of the consumer of your cloud application is the main purpose of authentication. Authorization guarantees that the consumer has the necessary permissions to access your applications.

One of the main challenges API producers face is making improvements and enhancements to their APIs without getting their clients to upgrade API versions (i.e., change their applications). We're excited to introduce semantic version-based intelligent routing in Choreo, making API consumption easier than ever. This feature groups APIs into their major versions, and the corresponding URLs are simplified to include only the major version number.