FastAPI with GenAI and AgenticAI project - From Basic to AI (Udemy.com)
Build production-grade FastAPI backends through 9 real projects: REST APIs, databases, auth, WebSockets, AI and RAG.
Created by: Hitesh Choudhary
Last updated September 2026
What you will learn
- Understand how FastAPI works under the hood; ASGI, Uvicorn, Starlette and Pydantic; to write fast, production-grade code.
- Build and structure real REST APIs with correct HTTP verbs, response models, pagination and clean error handling.
- Design databases and perform CRUD operations using SQLModel, plus work with MongoDB for document-based projects.
- Secure APIs with header/API-key authentication, and manage application lifespan and dependency injection.
- Integrate AI into backends: build LLM-powered features, image pipelines, WebSockets, SSE and a full RAG system.
- Structure clean, maintainable projects using separation of concerns, Pydantic models and modular routers.
How it compares
Against the other 815 rated Udemy courses in Web Development on CourseDuck:
- Rating4.6 out of 5higher than 70% of them
- Reviews332#354 of 816 by number of reviews
- Length10.6 hourslonger than 61% of them
- Last updatedSeptember 2026more recently than 98% of them
Course Description
This is not another short, surface-level tutorial. This is a deep, project-first course on FastAPI - built for developers who want to understand what actually happens under the hood and write fast, clean, production-grade backend code.
We start from the foundations: what a backend really is, why FastAPI exists, and how its core pieces; ASGI, Uvicorn, Starlette, and Pydantic - work together to make it so performant. Once you understand the request-response lifecycle and why FastAPI is fast, you stop writing sloppy code and start building applications that can serve the world.
From there, it is projects, projects, and more projects. You will build a menu API, a pincode lookup service with custom exceptions and validators, a database-backed CRUD app with SQLModel, a multi-parameter filtering and stats service, and a header-based authentication system. Then we go further into modern, AI-centric territory, Server-Sent Events, MongoDB-powered document apps, LLM-driven features, image processing pipelines, and a complete Retrieval-Augmented Generation (RAG) system using vector databases.
Along the way you will learn the practices that matter; separation of concerns, Pydantic models, dependency injection, lifespan events, pagination, and clean project structure; plus how to work effectively with AI coding tools the way developers actually do today.
The videos are intentionally longer than the usual Udemy format because real understanding needs room to breathe. This is a senior developer talking to you like a peer, sharing hard-won experience, not a polished script.
By the end, you will be a confident FastAPI backend developer, ready to build robust, high-performance applications and pair them with any frontend or AI workload. This course helps you to not only master FastAPI but also to master Generative AI, RAG in production and building Agents with modern FastAPI ecosystem of python
Instructor Details
- 4.6 Rating
332 Reviews
Hitesh Choudhary
My name is Hitesh Choudhary, a retired corporate professional who has seamlessly transitioned into a full-time YouTuber. With a rich history as the founder of LCO (acquired) and a former CTO at iNeuron and Senior Director at PW, I bring a wealth of experience in building software and companies. My journey in the tech world has endowed me with unique insights and expertise, which I am passionate about sharing.
On YouTube, I manage two thriving channels—one boasting 1 million subscribers and the other with 300,000—demonstrating my ability to connect with and educate a vast audience. My travels to 39 countries have enriched my understanding and provided a global perspective that I incorporate into my content.
My hallmark is making the toughest topics easy to understand, a skill that has earned me a dedicated following. I am committed to educating and inspiring a diverse audience worldwide, making complex subjects accessible and engaging. Join me on Udemy, where I bring my extensive knowledge, practical experience, and unique teaching style to help you master new skills and advance your career.
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Reviews
By Tanmay Potnurwar on 9/24/2026
Can be more interactive, or we can say could be somewhat in detail. Feels like writing the code. After drafting code for each file the lecture is over, instead after writing/drafting the complete code for a file, The tutor should explain the role of each function, class, method in short and summarize outcome for each file.
By Dikshant Gupta on 9/4/2026
I understand you want to teach your students and viewers to learn and use these AI tools. But I believe in educational content like this, use of such tools should not be used. A person who just started learning this concepts and joined your course, seeing this tab completions and keep hearing of this AI might demotivate him. I hope you understand this. Rest the course is good!!.
By Piyush Goswami on 9/2/2026
The course is absolutely amazing but as we are creating so many projects, Many topics are repeated but that's okay. At last we are getting 100% hands on experience from this course.
By Vikas Singh on 9/1/2026
Trainer has great knowledge, even greater skills to impart that knowledge so simplified that learning becomes real easy. Thanks for formally introducing the AI way of coding and harnessing the real power on our fingertips.
By Sarita Kumari on 8/31/2026
The course provides a clear and structured approach to learning FastAPI, starting from the basics and gradually moving into advanced topics like GenAI and AgenticAI integration. The explanations are detailed and easy to follow, with practical examples that make complex concepts more approachable. I especially appreciate the hands-on project work, which helps solidify the learning and gives real-world context. The instructor’s pacing is balanced, ensuring that both beginners and experienced developers can benefit. Overall, this course is highly engaging and adds great value for anyone looking to strengthen their backend development skills with modern AI-driven applications.
By Ubaid Ullahmohmand on 8/25/2026
so good so interactive learning with clear theory and code practically which make this course the best in fastapi domain. i have been learning my tech skill from sir hitesh for a long ago until now and hope in future too.100 percent recommended course for everyone who is tech enthusiast in deeply understanding with easy way hope for the future masterpiece course like this in future.☕️
By Arindam Sarkar on 8/17/2026
learned a lot and it is very good if you want to start your learning journey in FASTAPI , i would say this is beigineer level course . for being an intermediate-advanced ofcourse more complex project building is needed you can try it yourself after learning from this couse
By Akshay Negi on 8/12/2026
Being from a .net background,the concepts were not new to me,but strengthening my python skills along with fast api with the approach of building projects and learning on the go and not just mugging up the theory is ideal for someone like me. A great shout out to Hitesh and Piyush for such an amazing course. Anybody wanting to get started with fast api,you can definitely learn from this course,you will love it.
By Manish Chavan on 8/8/2026
This course is really good and I am learning a lot. I have been trying to learn FastAPI from different platforms like Youtube, Udemy and FastAPI documentation before. But everytime, I used to learn very basic things that can be easily learned.I wanted to learn the FastAPI in more depth in order to build good scaled applications. This course really serve my purpose.
By Ruturaj Pawar on 8/7/2026
The way instructor Hitesh sir is teaching is crystal clear to me can we add more projects to this course? that will make me more better AI & Backend Engineer because after every mini project I rebult it using different problem statement without using AI and my programming skills have become so much better after this course it's helping me in my current internship as Agentic AI Intern. Thanks!!
Quality Score
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Overall Score : 92 / 100












