This article was written using Ballerina Swan Lake Update 8 (2201.8.0) Introduction GraphQL: Striking a Balance Between Advantages and Limitations GraphQL, a relatively recent addition to the API world, is in a constant process of evolution. Like any innovation, GraphQL possesses strengths and limitations that the dynamic GraphQL community aggressively addresses. Within GraphQL APIs, a key benefit is the…

Introduction This guide is to show how to implement GraphQL subscriptions with Apache Kafka using the Ballerina programming language. In this example, a news alert system is designed. It has the following features. There are predefined news agencies. Publishers can register with a news agency. Subscribers can register to the news…

This article explains how to convert a REST API to a GraphQL API using Ballerina. Ballerina is an open source language mainly focused on network and cloud native programming. If you haven’t installed Ballerina yet, you can download it from here. You can Learn Ballerina easily too! I am not…

ක්‍රිස්ටෝෆර් නෝලන් කියන්නේ “අමුතු” ජාතියේ “වැඩ” කරන අධ්‍යක්ෂ්‍යකවරයෙක් බව සිනමා රසිකයන්ට අළුත් දෙයක් නෙවෙයි. නෝලන්ගේ අළුත් ම “වැඩේ” තමයි TENET. නෝලන් ගේ ගොඩක් කතා වගේ ම, මේකත් එක පාර බැලුවට හරියට ම තේරෙන්නේ නැති, ටිකක් සංකීර්ණ කතාවක්. මේ නොතේරීමට කතාවේ සංකීර්ණ බව වගේ ම, නොපැහැදිලි දෙබස්, මහ හයියෙන් ඇහෙන පසුබිම්…

During this pandemic, we now feel the importance of E-commerce more than ever. Shopify is an E commerce platform which provides merchants to create an online store easily. We, as developers can create various apps on Shopify to help merchants to handle their stores. In order to install a Shopify…

TL; DR; I have implemented a local Kafka cluster to use in tests. Source code is here. I’ve been working in developing Ballerina Kafka module for some time now. It’s been PITA to test this connector! I needed a Kafka cluster to start, then shut down, then start gain, etc. …

This feature is now deprecated in Ballerina SwanLake Apache Kafka is widely-used message streaming platform to handle real-time messaging in network applications. Ballerina on the other hand is a new programming language, which mainly focused on network applications. Ballerina language comes with a handy set of libraries (or modules if…

Previously I explained about how to configure Ballerina-Kafka module to work along with Apache Kafka. Now let’s see how to implement a simple review filtering system using Ballerina and Kafka. If you’re not familiar with Ballerina, please take a look at ballerina language first, before continuing. Consider the following scenario: …

Ballerina is now ships with Kafka module! This setup is no more needed! Ballerina is a rising, cloud-native programming language. Even though there are many languages out there, ballerina is one of a kind. Kafka, on the other hand is a rising, well-used distributed streaming platform. …