FastAPI Interview Questions & Answers (2025) | Advanced Python Backend Developer Prep – Part 2

Are you preparing for a FastAPI or Python backend interview in 2025? 🚀
This video (Part 2) covers 10 advanced FastAPI interview questions and answers, carefully designed to help you crack top tech interviews at companies hiring backend developers.

FastAPI is gaining huge adoption in 2025 because of its speed, async support, and simplicity compared to Flask and Django REST. Recruiters expect you to know real-world FastAPI concepts like async requests, middleware, dependency injection, authentication, and deployment.

💡 In this video, you’ll learn:

How FastAPI handles asynchronous requests efficiently
Understanding Middleware & Request/Response Lifecycle
Role of Dependency Injection in clean architecture
Advanced Pydantic validation & serialization
Authentication methods (JWT, OAuth2, API keys)
Using Background Tasks & Event Handlers
Testing FastAPI apps with pytest
Database integration (SQLAlchemy & NoSQL)
Deployment strategies for production-ready APIs


👉 Watch Part 1 here: \[Insert link]
👉 Don’t miss Part 3, coming soon with real-world coding interview scenarios!

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