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FastAPI in Practice: Database Engineering and Scalable Backend Architecture
Paperback
Series: Modern Backend Engineering with Fastapi, Book 2
Publisher: Independently Published
Published: Jul 7 2026
Pages: 556
Weight: 2.10
Height: 1.13 Width: 7.00 Depth: 10.00
Language: English
Building APIs is only the beginning. As applications grow, backend systems become harder to maintain, optimise, and evolve. Database performance begins to matter. Business logic spreads across the codebase. Small architectural shortcuts become long-term technical debt.
FastAPI in Practice: Database Engineering and Scalable Backend Architecture is written for developers who already understand the fundamentals of FastAPI and are ready to build backend systems with stronger structure, better persistence design, and more scalable engineering habits.
This book takes you beyond simple CRUD tutorials and guides you through the design and evolution of ScaleCore, a production-oriented FastAPI backend platform built to simulate the kinds of systems used in SaaS products, internal business platforms, and scalable API-driven applications.
Instead of teaching isolated framework features, this volume focuses on how backend systems are designed, organised, optimised, and maintained as they grow.
You will learn how to:
Move from basic API development into scalable backend engineering.
Design layered FastAPI architectures using routers, services, repositories, schemas, and models.
Model complex database relationships with SQLAlchemy.
Manage schema evolution professionally with Alembic migrations.
Optimise ORM queries and avoid N+1 performance problems.
Apply indexing strategies for database performance.
Build asynchronous database workflows with SQLAlchemy.
Use repository and service layer patterns to keep business logic maintainable.
Design modular FastAPI applications that can grow without collapsing into confusion.
Manage transactions, data integrity, and partial failure scenarios.
Introduce Redis caching and performance-aware backend workflows.
Understand concurrency, background tasks, and scalable request processing.
Structure configuration for multiple environments.
Improve debugging, logging, traceability, and operational maintainability.
Review and evolve a backend platform for long-term scalability.
This book is especially suitable for developers who can already build FastAPI applications but want to understand what separates a working API from a maintainable backend system.
You should already be comfortable with basic FastAPI routing, request validation, CRUD workflows, foundational SQLAlchemy usage, authentication basics, and modular application structure. If you are completely new to FastAPI, begin with FastAPI for Beginners: Building Production-Ready Python APIs from Scratch before reading this volume.
This is not a beginner syntax book. It is a practical backend engineering book for developers who want to think more clearly about architecture, persistence, scalability, maintainability, and production-oriented design.
By the end of this book, you will not only know how to build APIs with FastAPI. You will understand how to engineer backend systems that are structured for growth, designed for maintainability, and prepared for long-term production use.
If you are ready to move from FastAPI basics into serious backend engineering, this book is your next step.
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