(2025) Quarkus for beginners, everything you need to know. from Udemy

Welcome to the course that will teach you everything you need to know to get started with Quarkus. This comprehensive course is designed for beginners who want to explore the capabilities of this modern Java framework, built for creating fast, lightweight applications in a microservices architecture. Throughout the course, we will cover all the essential aspects of working with Quarkus, from basic features to advanced techniques, enabling you to build fully functional applications.

Main course chapters:

REST – Learn how to create modern
OpenAPI/SwaggerUI – Discover how to generate API documentation with OpenAPI and use SwaggerUI for interactive API testing.
Dependency Injection – Understand the dependency injection mechanism in Quarkus, which helps you create flexible and testable applications.
Configuration – Learn how to efficiently configure Quarkus applications and manage settings across different environments.
Integration with a Database – Gain knowledge on integrating Quarkus with a database, creating queries, and managing data.
Flyway – Learn Flyway, a tool for managing database migrations, which will help you safely and conveniently manage changes to your database schema.
Exception Handler – Discover how to create efficient exception handling mechanisms that improve the reliability of your applications.
Testing – Learn the process of testing Quarkus applications, including unit and integration tests.
Security – Learn how to secure your Quarkus applications using mechanisms like authorization and authentication to ensure data and user security.

This course is designed to help you gradually absorb the necessary knowledge and then apply it in practice. By the end of the course, you'll be able to create your own Quarkus-based application, utilizing all the discussed features and best practices.

If suggestions for new lessons or topics arise during the course, they will be considered and added based on the needs of the learners. We are open to any proposals to make the course as tailored to your expectations as possible.

What's inside

Learning objectives

Developing with quarkus
Building rest application
Configuration setup and testing

Securing quarkus applications
Database management in quarkus

Developing with quarkus
Building rest application
Configuration setup and testing
Securing quarkus applications
Database management in quarkus

Syllabus

Introduction

What is Quarkus

Quarkus vs Spring boot

When to use quarkus

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Traffic lights

Read about what's good

what should give you pause

and possible dealbreakers

Provides a comprehensive introduction to Quarkus, a modern Java framework, making it suitable for Java developers looking to expand their skillset

Focuses on building fast, lightweight applications in a microservices architecture, which is highly relevant for modern cloud-native development

Covers essential aspects of working with Quarkus, from basic features to advanced techniques, enabling developers to build fully functional applications

Explores database integration with Panache ORM, covering essential operations like find, pagination, sorting, insert, update, and delete, which are crucial for backend development

Includes security mechanisms like authorization and authentication, which are essential for ensuring data and user security in modern applications

Uses Flyway for managing database migrations, which helps manage changes to the database schema safely and conveniently

Reviews summary

Quarkus for beginners: comprehensive start

According to students, this course provides a solid and comprehensive introduction to Quarkus, covering essential topics needed to get started with building modern Java applications. Learners particularly appreciate the practical approach, with many mentioning the hands-on examples and demos that help solidify understanding. The instructor is often praised for clarity and the ability to explain complex concepts effectively. While primarily aimed at beginners, some reviewers note that a basic understanding of Java and REST concepts is helpful, although not strictly required. A few mention that some sections could benefit from deeper dives into specific advanced topics, but overall, it successfully delivers on its promise to teach everything a beginner needs to know.

Beneficial to have some Java background.

"While for beginners, a basic understanding of Java and REST is definitely an advantage."

"It helps if you have some prior experience with Java development and building APIs."

"Although it says beginner, knowing core Java helps you keep up with the pace."

Covers essential Quarkus features.

"The course covers all the essential topics like REST, testing, security, and database integration."

"I feel like I got a good overview of everything needed to build a basic Quarkus application."

"From REST to security, it touches upon the key areas needed for beginners."

Instructor explains concepts clearly.

"The instructor explains everything very clearly, making complex topics easy to understand."

"Appreciate the clarity of the lectures; they are easy to follow along with."

"The explanations are concise and to the point, which I find very helpful."

Focuses on practical application and coding.

"The hands-on coding examples and projects are the strongest part of the course for me. Very practical."

"I really enjoyed the practical demos; they helped me understand how to apply what I learned."

"The emphasis on building applications step-by-step is extremely useful for learning by doing."

Provides a strong foundation for newcomers.

"As a beginner to Quarkus, this course is exactly what I needed to get started quickly."

"Perfect introduction for anyone new to the framework. Covers the essentials well."

"I had very little prior Quarkus experience, and this course made it easy to grasp the core concepts."

Some areas could have more detail.

"Could use more in-depth coverage on advanced topics like specific optimizations or integrations."

"I wish some sections, like security or database usage, were covered in greater detail."

"While comprehensive for basics, some chapters felt a bit rushed or could have explored more complex scenarios."

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in (2025) Quarkus for beginners, everything you need to know. with these activities:

Review Java Fundamentals

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Strengthen your understanding of Java fundamentals to better grasp Quarkus concepts, which are built upon the Java ecosystem.

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Review data types, operators, and control flow in Java.
Practice object-oriented programming principles.
Work through basic Java tutorials and exercises.

Read 'Quarkus Cookbook'

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Supplement your learning with a practical guide to Quarkus development, providing real-world solutions and best practices.

View Quarkus Cookbook on Amazon

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Obtain a copy of 'Quarkus Cookbook'.
Read through relevant chapters as you progress through the course.
Experiment with the code examples provided in the book.

Build a Simple REST API

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Apply your knowledge by building a REST API using Quarkus, reinforcing your understanding of REST endpoints, data handling, and dependency injection.

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Define the API endpoints and data models.
Implement the REST endpoints using Quarkus.
Test the API endpoints using SwaggerUI or Postman.
Integrate with a database to persist data.

Four other activities

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Show all seven activities

Implement CRUD Operations

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Practice implementing CRUD (Create, Read, Update, Delete) operations with Panache ORM to solidify your database interaction skills in Quarkus.

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Set up a database connection in your Quarkus project.
Create entities and repositories for your data models.
Implement the CRUD operations using Panache ORM methods.
Test the CRUD operations thoroughly.

Write a Blog Post on Quarkus Security

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Deepen your understanding of Quarkus security by writing a blog post explaining authentication, authorization, and other security mechanisms.

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Research Quarkus security features and best practices.
Outline the structure of your blog post.
Write the blog post, including code examples and explanations.
Review and edit your blog post for clarity and accuracy.

Create a Database Migration Script

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Gain practical experience with Flyway by creating a database migration script to update your database schema.

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Identify the changes needed in your database schema.
Create a Flyway migration file with the necessary SQL statements.
Test the migration script in a development environment.
Document the migration script and its purpose.

Explore 'Mastering Kubernetes'

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Expand your knowledge of container orchestration with Kubernetes to better understand how to deploy and manage Quarkus applications in a cloud-native environment.

View Mastering Kubernetes on Amazon

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Obtain a copy of 'Mastering Kubernetes'.
Read through the book, focusing on deployment and management aspects.
Experiment with deploying a simple application to Kubernetes.

Career center

Learners who complete (2025) Quarkus for beginners, everything you need to know. will develop knowledge and skills that may be useful to these careers:

Microservices Developer

Microservices Developers specialize in building distributed applications composed of small, independent services. This course is tailored for this role because it focuses on Quarkus, a framework designed specifically for microservices architectures. A Microservices Developer will find the course's coverage of RESTful services, dependency injection, and configuration management invaluable for building robust and scalable microservices. Database integration using Panache ORM and Flyway migrations will further enhance a Microservices Developer's ability to manage persistent data within a microservices environment. Moreover, the emphasis on testing and security ensures that the developed microservices are reliable and secure.

See salaries and explore the career path for Microservices Developer

API Developer

API Developers design, implement, and maintain application programming interfaces. This course helps API Developers significantly by focusing on RESTful API development with Quarkus and teaching how to generate API documentation using OpenAPI and SwaggerUI. Understanding how to define schemas, operations, and responses, as covered in the course, is crucial for creating well-documented and user-friendly APIs. An API Developer will also find the modules on configuration, security, and exception handling valuable for building robust and reliable APIs. The course’s emphasis on testing ensures that the developed APIs are thoroughly validated. The knowledge of dependency injection is important for an API Developer, as is the consideration of when to use Quarkus.

See salaries and explore the career path for API Developer

Cloud Application Developer

Cloud Application Developers build and deploy applications in cloud environments. This course provides the skills needed to develop cloud-native applications using Quarkus. The course’s focus on creating fast, lightweight applications, as well as its coverage of RESTful APIs, dependency injection, and configuration management, is crucial for a Cloud Application Developer. The course also covers database integration with Panache ORM, which is essential for managing persistent data in the cloud. Furthermore, the modules on testing and security are vital for ensuring that cloud applications are reliable and secure. The modules on integrating with SwaggerUI are also of use to a Cloud Application Developer. Overall, this course is invaluable for anyone pursuing a career as a Cloud Application Developer.

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Java Developer

A Java Developer builds and maintains Java applications. This course, centered on the Quarkus framework, helps build a foundation for excelling as a Java Developer, especially in cloud-native environments. The course covers essential aspects such as RESTful API development, dependency injection, configuration management, and database integration using Panache ORM. By learning how to create fast, lightweight applications with Quarkus, a Java Developer can write efficient and scalable code for modern microservices architectures. Mastering testing and security, as taught in this course, is crucial for delivering robust and reliable applications. The integration with Flyway for database migrations is a particularly useful skill for any Java Developer interacting with databases.

See salaries and explore the career path for Java Developer

Application Developer

Application Developers create software applications for various platforms. This course teaches how to develop applications using Quarkus, a modern Java framework. An Application Developer will benefit from the course's comprehensive coverage of RESTful APIs, dependency injection, configuration, and database integration. The course’s emphasis on testing and security is crucial for delivering reliable and secure applications. Learning how to handle exceptions and manage configurations across different environments will provide a solid foundation for any Application Developer. This course will provide valuable skills to improve your capabilities as an Application Developer.

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Backend Developer

Backend Developers are responsible for server-side logic and database interactions. This course helps Backend Developers build efficient and scalable backend systems using Quarkus. Knowing how to develop RESTful APIs, manage configurations, and integrate with databases with Panache ORM is essential. A Backend Developer will use the tools and techniques taught in the course to create robust and maintainable applications. Exception handling and security features covered in the course also contribute directly to the reliability and safety of a Backend Developer's work. The course’s focus on microservices architecture is particularly beneficial for developing modern, scalable backend solutions. The use of SwaggerUI for API testing is invaluable to Backend Developers.

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Software Engineer

Software Engineers design, develop, and test software systems. This course equips you with the Quarkus framework, enabling you to create high-performance, cloud-native applications. A Software Engineer will benefit from the course's comprehensive coverage, including REST API development, OpenAPI/SwaggerUI for API documentation, and dependency injection. Specifically, the modules on database integration and Flyway migrations prepare you for persistent data management. Moreover, the course’s emphasis on testing and security empowers a Software Engineer to deliver reliable and secure solutions, which are highly valued in the industry. Learning when and when not to use Quarkus is information a Software Engineer can use to better tackle complex challenges.

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Full-Stack Developer

Full Stack Developers work on both the front-end and back-end aspects of web applications. This course is valuable for a Full Stack Developer looking to enhance their skills in backend development using Quarkus. The course's comprehensive coverage of RESTful APIs, dependency injection, configuration, and database integration is crucial for building robust and efficient backend systems. A Full Stack Developer can leverage these skills to create seamless interactions between the front-end and back-end. Understanding security and testing practices, as taught in the course, is also essential for ensuring the overall quality and security of web applications. The use of SwaggerUI for API testing is also invaluable to Full Stack Developers.

See salaries and explore the career path for Full-Stack Developer

DevOps Engineer

DevOps Engineers automate and streamline software development and deployment processes. This course offers a foundation in Quarkus, which can be used to build and deploy applications efficiently. A DevOps Engineer will benefit from the course's coverage of configuration management, database migrations with Flyway, and testing strategies. Additionally, understanding RESTful API development can enable DevOps Engineers to create and manage APIs for infrastructure automation. The course's emphasis on creating lightweight applications also aligns with the DevOps goal of optimizing resource utilization. Exception handling is important for a DevOps Engineer, as is the consideration of when to use Quarkus in order to better automate processes.

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Technical Lead

Technical Leads guide and mentor development teams, providing technical expertise and direction. This course helps a Technical Lead stay current with modern Java frameworks like Quarkus. Understanding the capabilities of Quarkus, including RESTful API development, dependency injection, and database integration, enables a Technical Lead to effectively guide the team. The course also covers testing and security, which are critical aspects of application development. By mastering these skills, a Technical Lead can ensure that the team delivers high-quality, secure applications. The information covered in the syllabus about when to use Quarkus, and when not to, would be useful for a Technical Lead.

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Software Architect

Software Architects design the structure of software systems, making high-level design choices. This course helps Software Architects understand the capabilities of Quarkus for building modern, scalable applications. The course’s coverage of microservices architecture, RESTful APIs, and dependency injection is particularly relevant for designing distributed systems. A Software Architect will find the modules on configuration management, database integration, and security invaluable for making informed decisions about system design. The understanding of when to use Quarkus, and when not to, is also critical for mapping the architecture of a system. While a Software Architect typically requires an advanced degree, this course may assist them with decision making.

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Solutions Architect

Solutions Architects design and implement IT solutions that meet specific business needs. This course may be useful for a Solutions Architect by providing a comprehensive understanding of Quarkus, a framework for building fast, lightweight applications. The course covers RESTful API development, dependency injection, configuration management, and database integration. A Solutions Architect can leverage these skills to design efficient and scalable solutions for modern microservices architectures. Understanding how to secure applications and manage database migrations with Flyway empowers a Solutions Architect to deliver robust and reliable solutions. The modules on integrating with SwaggerUI are also useful to Solutions Architects.

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Data Engineer

Data Engineers build and maintain data pipelines and infrastructure. This course may be useful for a Data Engineer needing to integrate applications into a data pipeline. The course covers integrating with databases, which is crucial for data ingestion and storage. Understanding how to configure applications and handle exceptions can help Data Engineers build robust and reliable data pipelines. The course’s coverage of RESTful APIs also helps to use APIs to pull data. Although a Data Engineer's primary focus is on data, this course provides valuable knowledge about the applications that generate and consume data. The use of SwaggerUI for API testing is also invaluable to Data Engineers.

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IT Manager

IT Managers oversee IT projects and teams. This course may be useful for IT Managers seeking a better understanding of modern Java frameworks. The course covers Quarkus, which is used to build fast, lightweight applications for microservices architectures. An IT Manager can use this to make better informed decisions about architecture. The course also covers RESTful API development, dependency injection, and database integration. Understanding how to secure applications and manage database migrations with Flyway helps an IT Manager deliver robust and reliable platforms. Although an IT manager is not involved in the minutiae of application design, they can benefit from this course.

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System Administrator

System Administrators maintain and manage computer systems and servers. This course may be useful for System Administrators as it provides insights into application configuration and deployment using Quarkus. Understanding how to configure applications, manage dependencies, and handle exceptions can help System Administrators troubleshoot issues and optimize system performance. The course also covers database integration and security, which are relevant for managing application data and ensuring system security. Although a System Administrator's role is typically less focused on application development, this course provides valuable knowledge about the applications they manage. The information covered in the syllabus about when to use Quarkus, and when not to, would be useful for a System Administrator.

See salaries and explore the career path for System Administrator

(2025) Quarkus for beginners, everything you need to know.

What's inside

Learning objectives

Syllabus

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Reviews summary

Quarkus for beginners: comprehensive start

Activities

Career center

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