Preface

• Who this book is for
• What this book covers
• Get in touch
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1. Part 1: Introduction to NestJS and Scalable Application Architecture

2. Chapter 1: Overview of NestJS FREE CHAPTER

• Technical requirements
• Introduction to NestJS
• The power of TypeScript
• Key features of NestJS
• The ecosystem of NestJS
• Why choose NestJS?
• Summary

3. Chapter 2: Understanding Scalable Application Architecture Principles and Design Patterns

• Technical requirements
• Principles of Scalable Application Architecture
• Caching strategies for performance optimization
• Design patterns for building scalable NestJS applications
• Understanding asynchronous programming for scalability
• Best practices for building scalable applications
• Summary

4. Chapter 3: Setting Up Your NestJS Environment and Exploring NestJS – Building a Robust App

• Technical requirements
• Installing Node.js and NestJS
• Scaffolding a new NestJS project
• Understanding the NestJS project structure
• Creating and managing modules
• Building controllers for handling requests
• Implementing providers for business logic
• Dependency injection – the magic behind providers
• Handling exceptions with exception filters
• Validating data with pipes and guards
• Summary

5. Chapter 4: Advanced Concepts – Modules, Controllers, Providers, Exception Filters, Pipes, Guards, and Decorators

• Technical requirements
• Diving deeper into modules
• NestJS controller essentials and advanced practices
• Understanding providers in depth
• Understanding request lifecycle
• Summary

6. Part 2: REST APIs and GraphQL in NestJS

7. Chapter 5: Building and Optimizing REST APIs with NestJS

• Technical requirements
• Introduction to REST APIs in NestJS
• Building a basic REST API
• Reflecting on REST API best practices
• Versioning your API
• Robust error handling in REST APIs
• Documenting your API
• Summary

8. Chapter 6: Unleashing the Power of GraphQL and the Apollo Federation Architecture in NestJS

• Technical requirements
• Understanding GraphQL fundamentals in NestJS
• Building and optimizing a GraphQL API with NestJS
• Learning about GraphQL subscriptions
• Securing GraphQL – authentication and authorization
• Introduction to Apollo Federation
• Summary

9. Part 3: Testing and Debugging APIs in NestJS

10. Chapter 7: Testing and Debugging REST APIs in NestJS

• Technical requirements
• Understanding the importance of testing
• Unit testing in NestJS
• Integration testing in NestJS
• Testing guards, interceptors, and middleware
• Debugging REST APIs
• Summary

11. Chapter 8: Testing and Debugging GraphQL APIs in NestJS

• Technical requirements
• Unit testing for GraphQL resolvers
• E2E testing in GraphQL
• Debugging GraphQL APIs
• Summary

12. Part 4: Scaling with Microservices and NestJS

13. Chapter 9: Deep Dive into Microservices: Concepts and Architectural Styles

• Technical requirements
• Understanding microservices
• Benefits of microservices architecture
• Microservices architectural styles
• Summary

14. Chapter 10: Building Scalable Microservices with NestJS

• Technical requirements
• Defining and implementing microservices in NestJS
• Overview of the microservices package in NestJS
• Inter-service communication and data integrity in NestJS
• Best practices for building microservices with NestJS
• Troubleshooting and debugging microservices
• Summary

15. Chapter 11: Testing and Debugging Microservices in NestJS

• Technical requirements
• Unit testing for microservices
• Integration testing for microservices
• Debugging common issues and solutions in microservices testing
• Best practices for testing and debugging microservices
• Summary

16. Part 5: Real-World Application Examples and Case Studies

17. Chapter 12: Case Study 1 - E-commerce Application

• Technical requirements
• Understanding the requirements of an e-commerce application
• Designing the application architecture and data modeling
• Implementing REST APIs for products and orders
• User authentication and authorization in an e-commerce context
• Summary

18. Chapter 13: Case Study 2 – Social Networking Platform

• Technical requirements
• Understanding the requirements of a social networking platform
• Designing the application structure for social networking
• Implementing GraphQL APIs for users, posts, and interactions
• User relationships and social features
• Posting real-time updates and notifications in a social networking context
• Summary

19. Chapter 14: Case Study 3 – Enterprise Resource Planning System

• Technical requirements
• Understanding the requirements of an ERP system
• Designing the system architecture for an ERP system
• Implementing microservices for scalability and modularity
• Data synchronization and consistency in an ERP context
• Handling complex business processes and workflows
• Summary

20. Part 6: Deployment, DevOps, and Beyond

21. Chapter 15: Deploying NestJS Applications

• Technical requirements
• Configuring a local server for production-like testing
• Deployment using Docker
• Deployment on Cloud platforms
• Post-deployment best practices
• Summary
• Further reading

22. Chapter 16: Embracing DevOps: Continuous Integration and Continuous Deployment for NestJS

• Understanding continuous integration and continuous deployment
• Choosing your CI/CD tools
• Setting up a CI/CD pipeline for NestJS
• CI/CD best practices
• Summary

23. Chapter 17: NestJS Performance Optimization

• Technical requirements
• Understanding performance optimization
• Code optimization techniques
• Database optimization techniques
• Caching strategies for NestJS
• Profiling and load testing
• Best practices for performance optimization
• Summary

24. Chapter 18: NestJS Security Best Practices

• Technical requirements
• Understanding application security
• Data security in NestJS
• Authentication and authorization in NestJS
• Preventing common security threats
• Security best practices in NestJS
• Summary

25. Index

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Appendix: Concluding Remarks and Next Steps

• Key takeaways from the book
• Exploring the NestJS ecosystem further
• Keeping up with NestJS updates and best practices
• Other useful resources
• Avoiding common pitfalls
• Final words