Live Coding. Document RESTful APIs with Swagger UI from Scratch

Master REST API documentation in this hands-on live coding tutorial!

Learn how to implement professional, interactive API documentation using Swagger UI and the OpenAPI 3.1 specification within a cloud-native Java microservices environment.

What You Will Learn:
- OpenAPI Basics: Understand the shift to OpenAPI 3.1 and JSON Schema 2020-12 (0:02:18).
- Jakarta Bean Validation: Automatically generate rich API documentation using annotations like @Pattern, @Size, and @NotNull (0:09:23).
- Resource Documentation: Best practices for documenting REST endpoints with @Operation and @APIResponses (0:12:00).
- Interactive Playground: Learn to use the Swagger UI endpoint for real-time API testing, schema inspection, and request debugging (0:22:35).
- Advanced Features: Handling nullable fields, implementing type-safe Java enums for categories, and managing complex webhook documentation (0:41:46 - 1:26:08).

This session leverages GitHub Codespaces and mvn liberty:dev to enable a seamless development workflow in which code changes are reflected instantly in your documentation. Perfect for Java, Spring Boot, and Microservices developers looking to improve API discoverability and developer experience.

#Microservices #Java #OpenAPI #SwaggerUI #RESTAPI #CloudNative #LiveCoding #JakartaEE #MicroProfile

🔥 Welcome to Our Live Stream! 🔥

We will explore Swagger UI, OpenAPI specification, and real-world REST API documentation best practices through a hands-on live coding walkthrough. Whether you are a backend developer, Java developer, Spring Boot engineer, or working with microservices, this session will help you improve API clarity and usability.

We’ll be building and running a production-grade microservice in GitHub Codespaces!

🚀 Dive into the world of cloud-native microservices! This session will help you get started with a powerful, lightweight, and scalable framework for modern apps.

🎯 What You'll Learn:

Hands-on Demo 👨‍💻 – Step-by-step guide to building your cloud-native microservices.

✅ A quick intro to this open-source Java runtime designed for cloud-native development.
✅ How to build RESTful web services using lightweight architecture and fast startup times.
✅ How to externalize configuration from your code, enabling dynamic environment-based configurations without rebuilding your application.
✅ Enable readiness and liveness checks that integrate seamlessly with Kubernetes, improving system reliability.
✅ Automatically generate OpenAPI docs for your RESTful endpoints, making your APIs easy to understand and consume.
✅ Implement resilience patterns like retries, circuit breakers, and timeouts to build robust, fail-safe services.
✅ Secure your services using JSON Web Tokens (JWT), supporting stateless authentication and fine-grained authorization.
✅ Call other services with a type-safe client-side REST API, reducing boilerplate and improving maintainability
✅ Trace and visualize request flows across services using OpenTelemetry. Learn both automatic instrumentation and how to use @WithSpan for manual tracing enhancements.
✅ Best Practices 🏆 – Tips for designing, deploying, and scaling microservices in a cloud environment.

By mastering these specs, you'll gain the confidence and skills to architect scalable, resilient, and cloud-native microservices. This will all take place in real-time within GitHub Codespaces. Let's code the future together!

This live tutorial is ideal for Java developers, Spring Boot developers, microservices architects, backend engineers, and anyone building or consuming REST APIs. If you want to master API documentation and make your APIs easier to understand, test, and integrate, this session is for you.
💬 Q&A Session: Have questions? We’ve got answers! Join the chat, and let's discuss your microservices challenges in real time.

🎯 By the End of This Stream, You'll:

🚀 Have a solid foundation to start building & deploying cloud-native microservices.
🔧 Gain hands-on experience with Open Liberty, Jakarta EE, and MicroProfile.
💡 Learn best practices from experts to build scalable, resilient applications.

📌 Don't forget to:
👍 Like this video
🔔 Subscribe & hit the notification bell
💬 Drop your questions in the chat!

🛠 Tools & Technologies Covered:
🔹 Java (Jakarta EE & MicroProfile)
🔹 Docker & Kubernetes (for containerization & orchestration)
🔹 RESTful APIs

👨‍💻 Who Should Join?
✅ Java Developers exploring microservices
✅ Cloud-Native Enthusiasts
✅ DevOps Engineers & Architects
✅ Anyone interested in modern application development

🌍 Let's build the future of cloud-native applications together!
See you in the stream! 🎥✨
Don't miss out on this opportunity to enhance your microservices skills and collaborate with a global community of developers!

#LiveCoding #GitHubCodespaces #MicroProfile #JakartaEE #CloudDevelopment #CodingMarathon #DevCommunity #codewithus
#OpenLiberty #CloudNative #DevOps

Видео Live Coding. Document RESTful APIs with Swagger UI from Scratch канала DevSkills