Building High-Performance Web APIs with FastAPI

Master FastAPI to Build Secure, High-performance Web APIs with Modern Python— from Fundamentals to Full-scale Applications.

Key Features

● Comprehensive coverage of FastAPI from fundamentals to deployment.
● Build production-ready APIs by integrating authentication, databases, and async programming.
● Practical guidance on testing, scaling, and securing APIs for production.

Book Description

APIs are the backbone of today’s interconnected digital world, powering everything from mobile apps to enterprise systems. Building them to be fast, scalable, and secure is critical for modern software success. Building High-Performance Web APIs with FastAPI shows you how to achieve exactly that—using Python’s cutting-edge FastAPI framework.

Starting with RESTful API fundamentals and FastAPI’s core principles, you will set up your development environment, install the framework, and explore its key features. You will progress through designing and validating data models with Pydantic, implementing authentication and authorization, handling file uploads, and integrating relational databases like SQLite, PostgreSQL, and MySQL.

From there, you will master testing and debugging techniques, learn deployment strategies with Docker and Kubernetes, and scale your APIs with best practices for performance and security. Real-world projects and step-by-step examples make each concept easy to grasp and apply.

Thus, by the end, you will have the skills and confidence to design, build, and deploy production-ready APIs that meet today’s performance and reliability standards.

Hence, whether you are a developer, architect, or engineer, Building High-Performance Web APIs with FastAPI is your roadmap to mastering high-performance API development—start building the APIs your users deserve.

What you will learn

● Understand FastAPI’s architecture and RESTful API principles.
● Set up a complete development environment, and install FastAPI.
● Design and validate request/response models with Pydantic.
● Implement authentication, authorization, and file handling.
● Connect to databases (SQLite, PostgreSQL, and MySQL) with SQLAlchemy.
● Deploy and scale FastAPI applications, using Docker and Kubernetes.

Who is this book for?

This book is tailored for Python developers, backend engineers, full-stack developers, and API architects with basic programming and HTTP knowledge who want to master modern API development. Familiarity with Python syntax and core web concepts will help readers quickly apply FastAPI to real-world, production-grade projects.

1. Introduction to FastAPI and RESTful APIs
2. Setting Up the Development Environment
3. Installing FastAPI
4. Core Features of FastAPI
5. Dependency Injection
6. Request and Response Models with Pydantic
7. Authentication and Authorization
8. File Uploading
9. Connecting to Databases
10. Testing and Debugging
11. Deployment and Scalability
12. Managing Application Configuration
13. Building Practical Projects
14. Future of FastAPI
15. Appendices
Index

Girish Vas is a multi-domain Python expert, AI engineer, and backend architect with over 12 years of professional experience in software development. His career spans several industries—including healthcare, finance, wellness tech, e-commerce, edtech, and social media—where he has built scalable APIs, intelligent automation systems, and production-grade machine learning Solutions.

Starting with a passion for writing clean, maintainable Python code, Girish evolved into a full- fledged problem solver with hands-on experience in FastAPI, Django, SQLAlchemy, PostgreSQL, Redis, Docker, Kubernetes, and modern DevOps practices. His journey has included architecting real-world solutions such as DNA- based wellness applications, mental health bots, e-commerce platforms, RAG pipelines for knowledge retrieval, social media APIs, and trading dashboards—each with a strong focus on performance, security, and developer ergonomics.

About the Technical Reviewer

Thinknyx® Technologies is a team of professionals with years of experience in Information Technology. Their expertise ranges from software development to the management of IT infrastructure, cloud, automation, container management, web and app development, security, and professional services. Recognized as a reputable brand, Think Nyx® Technologies provides IT consulting services, offering comprehensive information technology and soft skills’ training. Additionally, they offer talent acquisition and recruitment solutions to diverse organizations worldwide.

Mr. Kulbhushan Mayer, the Co-Founder of Thinknyx® Technologies, is a certified expert in DevOps, SRE, Cloud, and Containerisation, with over 17 years of IT experience. He has expertise in technologies such as Public/Private Cloud, Containers, Automation tools, Continuous Integration/Deployment/Delivery tools, Monitoring and Logging tools, and more. Mr. Mayer is passionate about sharing his technical expertise with a global audience through various forums, conferences, webinars, blogs, and LinkedIn. Furthermore, he has reviewed multiple books on Automation, DevOps, DevTools, and more for different vendors.