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 4: Inter-Process Communication and Messaging

Microservice architecture is a trend that has emerged with the recent growth of cloud application technology. Microservice architecture is built by combining small service components. These services should be able to communicate with each other and external services to provide the final output. Communication, therefore, is a key component of cloud native technology that needs a lot of focus and attention.

In this chapter, we will discuss how to use different types of communication protocols with the Ballerina language. We will learn how to find service endpoint connection URLs with service discovery, using different types of synchronous communication methods, such as GraphQL, WebSocket, gRPC, and asynchronous communication protocols such as RabbitMQ and Kafka.

The following is the list of the main topics that we are going to discuss in this chapter:

  • Communication between services in a microservice architecture
  • Synchronous...