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

Summary

In this chapter, we focused on connecting a Ballerina application with databases and building a simple order management system that runs on a distributed system. We discussed how to connect different types of databases with Ballerina built-in libraries. We further discussed using MySQL as the backend database and how we can use different types in the Ballerina language to map to different MySQL data types.

The order management system that we discussed in the first chapter was implemented as an example by using the MySQL database. We also discussed transaction management, which is an essential part of building any application.

Further, we discussed writing applications in a distributed manner using different methodologies. To handle distributed transactions, we discussed the saga pattern. To hold the previous status of the system, we discussed using event stores. We also discussed CQRS patterns that separate read and write operations along with the event store. All of...