Gain insights into Quarkus, a modern Java framework. Learn about creating and configuring applications, REST endpoints, WebSockets, GraphQL, fault tolerance, and database connections for robust microservices.

quarkus.tar.gz

Quarkus run dev application

Quarkus test application

Quarkus run dev application + MongoDB

Quarkus run dev application + PostgreSQL

Quarkus is a modern Java framework that simplifies the creation of web applications. With the help of Quarkus, you can create modern applications and deploy them easily on the cloud.

You’ll begin the course with an introduction to Quarkus and the different features that make it a great Java framework. Next, you’ll explore the basics of Quarkus, such as creating and configuring an application, adding plugins, and testing your code. You’ll learn how to build modern web applications using Quarkus by creating and consuming REST endpoints and documenting them. You’ll also learn how to create a WebSocket server and a GraphQL endpoint and ensure fault tolerance for your application. Lastly,  you’ll add different kinds of database connections to your Quarkus application.

After completing this course, you’ll be equipped to create various applications and microservices using Quarkus, a must-have knowledge for any developer.

Developing Microservices with Quarkus

# Introduction

Quarkus offers multiple ways to configure our application. The most common include:

* System properties
* Environment variables
* An `.env` file in the working directory
* A Quarkus application file (`.properties`  or `.yaml` file)

# System properties

System properties are passed to a Quarkus application with the `-D` flag when running our application.

When working with the developer tools, we can pass all kinds of properties. For example, when we created our application, we used the below command to generate the source code:

mvn io.quarkus.platform:quarkus-maven-plugin:2.15.3.Final:create \
    -DprojectGroupId=io.educative \
    -DprojectArtifactId=maven-test

The example above uses Maven to create a new Quarkus application while passing the `projectGroupId` and `projectArtifactId` properties.

This same logic is applied when running our application with the Quarkus dev mode, a jar, or a native application:

Learn how to configure your Quarkus application.

Introduction to Quarkus

Quarkus Basics

Quarkus Web

Quarkus Data

Epilogue

Appendix

Configuring a Quarkus Application

Introduction

System properties