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Discover how to effectively test FastAPI applications using TestClient, httpx, and dependency overrides. This post provides a step-by-step guide, real-world use cases, and insights into common pitfalls and trade-offs.
Migrating from Python 3.8 to 3.12 can unlock performance improvements and new features, but it requires careful planning. This playbook provides a step-by-step guide to ensure a smooth transition, highlighting real-world use cases, common pitfalls, and strategic trade-offs.
Learn how to efficiently serve large language model (LLM) endpoints using FastAPI, focusing on streaming, timeouts, and backpressure. This post provides a practical guide for backend engineers to optimize performance and reliability in production systems.
Discover how to build a scalable multi-tenant SaaS backend using FastAPI and Postgres. This guide provides a step-by-step approach, real-world use cases, and insights into common pitfalls and trade-offs.
Python's memory model can lead to unexpected behavior if misunderstood. This post explores references, copies, and memory leaks, providing insights and practical steps to optimize memory usage in Python applications.
Discover how to leverage OpenAPI in FastAPI to generate reliable client code for your frontend. This post explores practical steps, real-world use cases, and common pitfalls, ensuring your frontend communicates seamlessly with your backend.
Learn how to implement effective error handling in FastAPI to create robust and user-friendly APIs. This post covers practical steps, real-world use cases, and common pitfalls to avoid.
Discover how Python type hints can significantly reduce bugs in production systems. Learn practical steps, real-world use cases, and common pitfalls to avoid when implementing type hints in your codebase.
Discover how to effectively manage Python dependencies at scale with uv, Poetry, and pip-tools. Learn the strengths, weaknesses, and real-world applications of each tool to make informed decisions for your projects.
Discover how to leverage Python decorators for caching, retries, and instrumentation to enhance performance and reliability in your applications. Learn practical techniques and real-world insights to implement these advanced patterns effectively.
FastAPI is a powerful tool for building asynchronous web applications in Python, but it's not a one-size-fits-all solution. This post explores scenarios where FastAPI might not be the best choice, helping engineers make informed decisions.
