FastAPI Tutorial #7 | Pydantic Models + Data Validation + Nested Schemas

In this video, you will learn how to create Pydantic models (schemas) in FastAPI to structure and validate your data. We will also explore nested models and understand how to handle complex data structures in real-world APIs. This is a very important concept for building scalable and clean backend applications. Topics covered in this video: --What are Pydantic models --Create schemas in FastAPI --Define fields and data types --Data validation using Pydantic --Required vs optional fields --Default values in models --Nested models (complex JSON) --How FastAPI uses schemas internally --Common mistakes beginners make This video is useful for backend beginners, Python developers, and anyone building real-world APIs. ⚙️ Tech Used and Code: Python, FastAPI, VS Code, Terminal 👉 *GitHub Code Link* - https://github.com/mohitdjcet/fastAPI-Tutorial 📂 *Playlist Links:* - Python Full Course Video (Hindi): https://www.youtube.com/playlist?list=PLsjpRo2EZP1Ja-GuGvkiPqmE3RGYP4lnI - DSA Full Tutorial: https://www.youtube.com/playlist?list=PLsjpRo2EZP1LKQePmuWv8jppLddppmGkn - Django Full Course Video (Hindi): https://www.youtube.com/playlist?list=PLsjpRo2EZP1K_glKX0lG6BkviJFxjuGls - Git and GitHib Copilot Full Course Video (Hindi): https://youtu.be/hebwERejgI4 - JavaScript Full Course Video (Hindi): https://youtu.be/moRFcW7xayc - HTML Crash Course : https://youtu.be/Zb_-6SttO3M - CSS Crash Course : https://youtu.be/b7PlBCjAJco 🔗 *Follow Me for Updates:* - TopMate:[Connect with Me](https://topmate.io/mohitdecodes) - WhatsApp:[Connect with Me](https://whatsapp.com/channel/0029Vb6CABUIHphQqGRYP71u) - Instagram: [Connect with Me](https://www.instagram.com/mohitdecodes/) - Facebook: [Connect with Me](https://www.facebook.com/mohitdecode/) - LinkedIn: [Connect with Me](https://www.linkedin.com/in/mohitdecodes/) - GitHub: [Explore My Projects](https://github.com/mohitdjcet/) fastapi pydantic models fastapi schemas fastapi data validation fastapi nested models python fastapi tutorial beginners fastapi model example fastapi validation tutorial fastapi api development pydantic tutorial #fastapi #python #backenddevelopment #webdevelopment #apis #learnfastapi #coding #pydantic #pythontutorial #mohitdecodes --- Copyright Notice: © Mohit Decodes. All rights reserved. Unauthorized reproduction or distribution of this content is prohibited. For permissions, contact via LinkedIn or email.