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…

In this article, we are going to cover the HTTP services support in the Ballerina programming language (Swan Lake release). We will be looking at the basics of creating an HTTP service, and then see how the Ballerina language provides a convenient abstraction for defining complex operations as well. Anatomy of an HTTP Service A…

In this article, we will take a look at how to create long-running workflows using AWS Step Functions and the Ballerina language. AWS Step Functions allow us to define state machines that can have tasks such as executing a Lambda function, inserting a message to a queue using AWS Simple…

In this article, we will take a look at how Ballerina’s AWS Lambda functionality can be used in implementing an integration scenario between the AWS Simple Storage Service (S3) and the AWS Rekognition service. In this use case, the users will upload images to an S3 bucket where the Lambda…

In this article, we will show you how to create a serverless solution for implementing a scalable Optical Character Recognition (OCR) system. In a system like this, scalability is a requirement. At certain times, we can expect possible bursts of traffic into the system where we need to process all…

Ballerina since v1.2.5 has built-in support for Azure Functions. In this way, you can take a Ballerina function and expose it as a serverless function in Azure Functions. Azure Functions take on a unique approach in defining serverless functions with the function trigger and bindings concept. In this way, we…

There seem to be increasing interest for people in knowing how to migrate a Spring Boot application to Ballerina. Spring Boot has been a very popular platform for writing HTTP/RESTful services; and then came along Ballerina, which is introduced as a programming language that is specialized in writing network-aware applications…

GitHub has introduced the ability to execute custom workflows for events you generate within GitHub using GitHub Actions. For instance, using this functionality, you can implement CI/CD using GitHub’s infrastructure itself. No need to subscribe for a special service to build/test and deploy your application, but rather these can be…

Introduction Azure cloud provides a vast range of services that can be used to implement and deploy virtually any type of scenario. In this write up, I will explore the capabilities of scalable request processing of Azure cloud in conjunction with the Ballerina programming language. Ballerina provides a natural approach for…