Explore Nest.js, a powerful Node.js framework for building scalable and robust applications, and learn all about REST APIs, GraphQL, and more Key Features Understand the basics of robust modern apps, design patterns, and NestJS architecture Build, test, and scale Rest APIs and GraphQL APIs using NestJS Utilize microservice architecture, DevOps, security, and communication patterns for modern API development Purchase of the print or Kindle book includes a free PDF eBook Book DescriptionIn this book, Pacifique C. Linjanja, a globally recognized software engineer and open-source contributor, shares his deep technical expertise and practical insights from his extensive experience delivering enterprise-level applications to unpack the full potential of NestJS, the cutting-edge Node.js framework.This book covers the core concepts, design patterns, and best practices for building scalable, high-performance applications with NestJS. You’ll learn REST API and GraphQL implementations, harness the power of microservices, and explore real-world case studies, including e-commerce, social networking, and ERP systems. The chapters provide step-by-step guidance for setting up your development environment with TypeScript and npm, structuring projects effectively, and using the Apollo Federation architecture to create efficient GraphQL APIs. This book offers hands-on guidance for testing and debugging APIs, handling exceptions, and validating data using pipes and guards, all while helping you build a complete NestJS application from scratch.By the end, you'll be ready to apply DevOps principles for continuous integration and deployment, as well as secure your NestJS applications using advanced techniques. What you will learn Master NestJS architecture and set up your environment with Node.js, npm, and TypeScript Apply design patterns and best practices to build robust, maintainable apps Build REST APIs and leverage GraphQL for flexible querying Use microservices architecture to efficiently scale your applications Understand how to test and debug APIs for optimal performance Implement Apollo Federation for efficient GraphQL APIs in a federated system Secure NestJS apps with advanced techniques Who this book is forIf you are a software engineer, developer, or a tech lead looking to build scalable applications using NestJS, REST, GraphQL, and microservices, this book is for you. Whether you're new to NestJS or a seasoned developer, this guide will help you leverage NestJS for your next big project. It’s also ideal for project managers and other IT professionals seeking insights into enterprise-level efficient development, testing strategies, and deployment processes. Even technology enthusiasts will find this book enlightening. Table of Contents Overview of Nest.js Understanding Scalable Application Architecture Principles and Design Patterns Setting Up Your Nest.js Environment and Exploring Nest.js: Building a Robust App Advanced Concepts: Modules, Controllers, Providers, Exception Filters, Pipes, Guards, and Decorators Building and Optimizing REST APIs with Nest.js Unleashing the Power of GraphQL and Apollo Federation Architecture in Nest.js Testing and Debugging REST APIs in Nest.js Testing and Debugging GraphQL APIs in Nest.js Deep Dive into Microservices: Concepts and Architectural Style Building Scalable Microservices with Nest.js Testing and Debugging Microservices in Nest.js Case Study 1: E-commerce Application Case Study 2: Social Networking Platform Case Study 3: Enterprise Resource Planning (ERP) System(N.B. Please use the Read Sample option to see further chapters)