Learn QUARKUS with Real Code Examples

REST API for an e-commerce backend

Reactive messaging with Kafka

CRUD application using Panache ORM

Serverless function deployed to OpenShift/Kubernetes

Event-driven IoT backend

Ensure correct Java version (17+)

Verify Maven/Gradle build configuration

Check extension versions for compatibility

Validate reactive streams for non-blocking errors

Monitor logs for native image compilation issues

Use JUnit for unit testing

Use RestAssured for integration testing

Mock external services with Mockito

Test reactive streams with Mutiny utilities

Run native image tests for performance validation

Deploy to Kubernetes/OpenShift

Package as Docker container

Native image deployment via GraalVM

Cloud serverless deployment

Use CI/CD pipelines for automated deployment

Java 17+ runtime

Maven/Gradle for build and dependency management

Quarkus CLI for project creation

Test frameworks: JUnit, RestAssured, Mockito

Extensions for DB, messaging, and security

Relational databases (PostgreSQL, MySQL) via Panache

NoSQL databases (MongoDB, Redis)

Messaging (Kafka, AMQP)

Cloud-native platforms (Kubernetes, OpenShift)

Security frameworks (Keycloak, OAuth2)

Use Quarkus dev mode for rapid development

Leverage extensions for DB, messaging, security

Write reactive endpoints for scalable apps

Use GraalVM for native image optimization

Automate CI/CD deployment pipelines

Mastering reactive programming in Java

Building and testing native images

Optimizing performance for cloud-native apps

Integrating multiple Quarkus extensions

Securing microservices with OAuth2/JWT