Book Image

Cloud Native Applications with Ballerina

By : Dhanushka Madushan
Book Image

Cloud Native Applications with Ballerina

By: Dhanushka Madushan

Overview of this book

The Ballerina programming language was created by WSO2 for the modern needs of developers where cloud native development techniques have become ubiquitous. Ballerina simplifies how programmers develop and deploy cloud native distributed apps and microservices. Cloud Native Applications with Ballerina will guide you through Ballerina essentials, including variables, types, functions, flow control, security, and more. You'll explore networking as an in-built feature in Ballerina, which makes it a first-class language for distributed computing. With this app development book, you'll learn about different networking protocols as well as different architectural patterns that you can use to implement services on the cloud. As you advance, you'll explore multiple design patterns used in microservice architecture and use serverless in Amazon Web Services (AWS) and Microsoft Azure platforms. You will also get to grips with Docker, Kubernetes, and serverless platforms to simplify maintenance and the deployment process. Later, you'll focus on the Ballerina testing framework along with deployment tools and monitoring tools to build fully automated observable cloud applications. By the end of this book, you will have learned how to apply the Ballerina language for building scalable, resilient, secured, and easy-to-maintain cloud native Ballerina projects and applications.
Table of Contents (15 chapters)
1
Section 1: The Basics
4
Section 2: Building Microservices with Ballerina
8
Section 3: Moving on with Cloud Native

Introduction to the Ballerina language

In this section, we will discuss how Ballerina came to be, the purpose of building this new language, and how it functions internally. We will also address how Ballerina manages its non-blocking threading model, which is an integral aspect of creating high-performance applications.

A glimpse of Ballerina

WSO2 has provided integrated solutions for over a decade. WSO2 has provided ESB solutions to integrate SOA-based services. WSO2 adapts Apache Synapse as the underlying mediation engine of the WSO2 ESB. Synapse offers a Domain-Specific Language (DSL)based on XML to describe message handling and logic for transformation. In SOA, messaging between services is mainly done with SOAP requests. XML message manipulation is mainly handled by using Xpath. However, creating complex message and transformation scenarios with a DSL can be difficult, and general programming languages such as Java are used to implement such scenarios.

The Ballerina language...