Book Image

WSO2 Developer's Guide

By : Ramón Garrido, Fidel Prieto Estrada
Book Image

WSO2 Developer's Guide

By: Ramón Garrido, Fidel Prieto Estrada

Overview of this book

WSO2 Enterprise Integrator brings together the most powerful servers provided by the WSO2 company for your SOA infrastructure. As an Enterprise Service Bus (ESB), WSO2 Enterprise Integrator provides greater flexibility and agility to meet growing enterprise demands, whereas, as a Data Services Server (DSS), it provides an easy-to-use platform for integrating data stores, creating composite views across different data sources, and hosting data services. Using real-world scenarios, this book helps you build a solid foundation in developing enterprise applications with powerful data integration capabilities using the WSO2 servers. The book gets you started by brushing up your knowledge about SOA architecture and how it can be implemented through WSO2. It will help build your expertise with the core concepts of ESB such as building proxies, sequences, endpoints, and how to work with these in WSO2. Going further, you will also get well-acquainted with DSS data service concepts such as configuring data services, tasks, events, testing, and much more. The book will also cover API management techniques. Along with ESB and DSS, you will also learn about business process servers, the rules server and other components that together provide the control and robustness your enterprise applications will need. With practical use cases, the book covers typical daily scenarios you will come across while using these servers to give you hands-on experience.
Table of Contents (14 chapters)

Working with Ballerina

It's time to put ourselves in the Ballerina programmer′s shoes and start coding our first Ballerina project. After that, we need to download and install it, so we need to go to the official website and download the latest Ballerina tools distribution, which contains the runtime and the tools needed for writing our Ballerina project; for this, visit https://ballerinalang.org/downloads/.

After downloading it, extract the content into a directory that we call <BALLERINA_HOME>, and we need to set the PATH environment variable to the <BALLERINA_HOME>/bin directory:

    export PATH = $PATH:/User/user/ballerina-tools-0.8.3/bin
  

Now, we are ready to start with the classic first example to understand a new programming language, the Hello World project!

To execute the helloWorld project, we must use the following command in a terminal from...