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

Chapter 2: Getting Started with Ballerina

Cloud native is a new concept that changes the way we think about building applications. It constitutes a whole new way of looking at programming compared to older monolithic architecture-based systems. There are several general-purpose programming languages available to develop cloud native applications. Ballerina is a new programming language that supports cloud native programming with a cloud-friendly programming style. It is a general-purpose programming language written with the integration of systems in mind.

We will start by introducing ourselves to Ballerina and its purpose, followed by performing some setup by downloading the installer and installing the Ballerina development kit. We will use Visual Studio Code (VS Code) and Ballerina VS Code plugins to develop Ballerina code. We will also explore the use of the Ballerina CLI tool to maintain Ballerina projects and the Ballerina type system, where we will cover Ballerina's...