This book offers beginners and backend developers with practical guidance on developing robust server-side applications with Java 17. Each chapter is structured around hands-on examples, real-world challenges, and step-by-step solutions tailored to Java professionals aiming to elevate their expertise in backend systems. It seamlessly transitions through essential development phases, covering foundational elements like from object-oriented design and basic REST endpoints to advanced microservices architecture and container orchestration.

It covers from wiring up databases with Hibernate to managing asynchronous communication with Apache Kafka and securing endpoints with Spring Security. You will explore caching strategies with Redis and diving into techniques to boost performance and reduce database load. It also covers Spring Cloud concepts like Eureka for service discovery and Config Server for centralized management, showing how microservices function cohesively. The book also covers testing and debugging topics, highlighting modern tools and practices such as JUnit, Mockito, integration tests, and distributed tracing. The book clearly encourages consistent coding standards, efficient concurrency patterns, and a layered approach for verifying logic.

As the book moves forward, it clearly illustrates how to maintain code quality and automate deployment workflows using continuous integration and delivery pipelines. Towards the book's end, you will know how to run Java 17 backend applications in simple production environments, and you will be applying best practices for logging, monitoring, security, and scalability. You will witness how all of these pieces fit together in a coherent ecosystem, whether they are deploying on Tomcat or containerizing with Docker.

Key Learnings

• Set up RESTful APIs and data mappings.
• Use Spring Security for robust user authentication and role-based access control.
• Employ Redis caching techniques to offload databases and enhance performance.
• Integrate Kafka to establish asynchronous, high-throughput communication among microservices.
• Adopt Spring Cloud tools for configuration, discovery, and gateway-based microservice architectures.
• Employ Docker containerization for portable deployments across environments.
• Construct CI/CD pipelines to automate testing, building, and delivery of microservices.
• Conduct thorough integration testing with real databases, brokers, and external dependencies.
• Use debugging tools, logs, and distributed tracing to isolate production issues.
• Optimize concurrency, resource usage, and monitoring to handle large-scale backend demands.

Table of Content

1. Introduction to Java 17 and Backend Development
2. Setting up Development Environment
3. Introduction to Spring and Spring Boot
4. Building RESTful APIs with Spring Boot
5. Data Persistence with Hibernate ORM and JPA
6. Managing Database Interactions
7. User Authentication and Authorization with Spring Security
8. Caching with Redis
9. Messaging with Apache Kafka
10. Microservices Architecture with Spring Cloud
11. Testing and Debugging Backend Applications
12. Deploying Java Backend Applications

A must-have for anyone looking to become an expert in application programming interface (API) developer, tester, integrator, or manager; this revised and updated edition of "Mastering Postman" covers every aspect of API development, including the noteworthy new features of Postman 11.

In this all-inclusive book, developers of all skill levels will find modern methods and best practices that cover every stage of the API lifecycle. This book provides a solid grounding in API design, documentation, and implementation, starting with the basics of Postman 11. Using Postman's most recent features, you'll learn the ins and outs of automated testing, error handling, and real-time monitoring—all of which are essential for APIs. It focuses mostly on the updated features of Postman 11.

This version discusses the new scripting features that enable more complex testing scenarios, as well as the improved integration options that make connecting to other platforms and services easier than ever before. Also covered is the latest Postman CLI and how to use it to automate and improve API testing and deployment in CI/CD pipelines. It also covers Postman's real-time collaboration features helping API teams collaborate more efficiently. You will also find out how to use Postman's new performance testing features, such as advanced load testing, to make sure your APIs can manage actual user traffic.

Key Features

• Manage the entire API lifecycle, from planning to development, testing, and release.
• Automate complex API tests with Postman 11's improved scripting capabilities.
• Use strong authentication methods for APIs, such as OAuth 2.1 and JWT.
• Use Postman's real-time collaboration tools for efficient API teamwork.
• Apply Postman and Newman load testing to ensure API scalability under pressure.
• Optimize data flow and system communication by seamlessly integrating APIs with various platforms.
• Use Postman's updated documentation tools to automate API documentation.
• Track API performance in real time to find and fix bottlenecks.
• Use caching and asynchronous processing to improve API performance.
• Set up CI/CD pipelines using Postman Command Line Interface (CLI).

Table of Content

1. API LifeCycle and Postman 11
2. API Design
3. API Development
4. API Testing
5. API Security
6. Using Postman CLI
7. API Documentation & Publishing
8. API Integration
9. API Performance

This capsule book is designed to provide DevOps teams, Networking Professionals, and Cloud Enthusiasts with the practical knowledge and skills required to set up and operate a robust service mesh with Linkerd. The book begins by demystifying the concept of service meshes, building a solid basis with an analysis of their evolution, key concepts, and the issues they face in modern cloud-native systems. It digs into Linkerd's architecture, explaining its components, features, and the seamless orchestration of microservices communication that it enables. As readers progress through the chapters, they are taken step by step through the installation and configuration of Linkerd. The book focuses on actual implementation, guiding readers through imperative and declarative methods to ensure a complete comprehension of the setup process.

The following chapters cover advanced subjects such as safeguarding interservice communications, configuring secure multi-cluster links, and implementing zero-trust authorization schemes in Kubernetes clusters. Topics includes how to organize services within Linkerd, manage error handling, retries, and timeouts, and implement effective multi-cluster communication and rollout strategies. A key chapter is about Rust programming, emphasizing its importance in developing efficient and secure micro proxies. Readers learn how to construct, integrate, and optimize these proxies to improve their service mesh deployment.

The book's conclusion prepares readers to work around progressive delivery, high availability, and integration with a variety of cloud settings and tools. This book serves as a complete guide, transforming its readers into skilled architects of Linkerd-based service mesh solutions, prepared to face the dynamic challenges of modern cloud-native infrastructures.

Key Learnings

• Grasp the essentials of service mesh technology, focusing on Linkerd's transformative role in it.
• Uncover the architecture of Linkerd, understanding its components and operational dynamics.
• Master the installation and configuration of Linkerd, ensuring a seamless setup process.
• Learn to secure interservice communication, enhancing the reliability and safety of your network.
• Explore multi-cluster communication strategies, enabling robust and efficient service interactions.
• Delve into Rust programming for building high-performance, secure micro proxies in xii Linkerd.
• Gain insights into advanced traffic management using Linkerd for optimal service routing.
• Navigate the intricacies of progressive delivery for deploying updates with minimal user impact.
• Discover the power of high availability in service meshes, ensuring uninterrupted service.
• Develop proficiency in integrating and optimizing linkerd2-proxy, harnessing its full potential.

Table of Content

1. Introduction to Service Mesh
2. Linkerd Architecture: Up and Running
3. Installing and Configuring Linkerd
4. Securing Communication with Linkerd
5. Advanced Traffic Management
6. Multi-Cluster Communication and Rollouts
7. Progressive Delivery and Ingress Integration
8. Building Micro Proxies with Rust