7 Best Udemy Courses to Learn FastAPI in 2025

I Took 7 FastAPI Courses on Udemy — Here’s What Actually Helped Me?

8 min readApr 19, 2025

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I Took 7 FastAPI Courses on Udemy — Here’s What Actually Helped Me?

Hello guys, when I first heard about FastAPI, it was often described as the “next generation” web framework for Python — faster, more modern, and easier to use than Flask or Django for APIs.

Naturally, I was curious. I wanted to not just “learn” FastAPI, but really understand it well enough to build real-world projects.

To fast-track my journey, I signed up for seven different FastAPI courses on Udemy — covering everything from beginner basics to advanced production deployments.
It was a bit overwhelming at first, but looking back, it was one of the best decisions I made.

In this article, I’ll share:

What actually helped me the most
Which courses were worth it
What I wish I had done differently
And tips for anyone starting FastAPI in 2025

Let’s dive in.

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Why I Wanted to Learn FastAPI?

Before FastAPI, I have used Flask and Django for building REST APIs using Python. But I kept hearing that:

FastAPI is much faster (thanks to ASGI + Starlette under the hood)
Built-in data validation with Pydantic saves hours
Auto-generated Swagger docs come for free
It’s designed for async programming (great for modern backends)

Given how AI, microservices, and serverless functions are evolving, learning FastAPI felt like a must for a modern Python developer.

By the way, if you are new into the world of building AI Agents then I highly recommend you to start with LLM Engineering: Master AI, Large Language Models & Agents course which will not just teach you Pydantic but also LLM, AI, and how to build AI Agents in 2025.

The 7 Udemy Courses I Took to Learn Fast API in 2025

Here are the seven FastAPI courses I am enrolled in:

Not all the courses are equally good, I was able to connect with some instructors really well but some of the courses are also boring and make you fall a sleep.

Now, I am going to share the top 5 courses which actually helped me to learn Fast API and the ones you can also join to learn FastAPI in 2025 online.

What Actually Helped Me to Learn FastAPI?

After completing (or at least deeply sampling) all of these Udemy , here’s what stood out:

1. Building Small Real Projects Early

The courses that forced me to build something — like a simple To-Do app or a weather API — helped way more than theoretical lectures.

Tip: Don’t just watch. Build alongside the instructor.

2. Understanding Pydantic Deeply

Initially, I thought Pydantic was just about “validating JSON”.

I was wrong. Pydantic is the backbone of FastAPI — models, request validation, response schemas, and even OpenAPI documentation generation.

Tip: Learning Pydantic separately boosted my FastAPI skills 10x faster.

3. Deploying to Production

Fast API courses that went beyond “localhost” like FastAPI — The Complete Course 2025 and showed how to:

Use Gunicorn + Uvicorn workers
Deploy on AWS, Render, or DigitalOcean
Use Docker for containerization were invaluable.

Tip: Make sure your first app gets deployed, even if it’s tiny.

4. Mastering Asynchronous Programming

FastAPI shines with async endpoints (async def).

Udemy Courses that explained how async/await actually works in Python — and when to use it — helped me write faster, cleaner APIs.

Tip: Don’t skip async programming basics if you want to fully utilize FastAPI.

5. Connecting FastAPI to Databases Properly

Building APIs without databases is useless. Udemy Courses that included PostgreSQL or SQLAlchemy (not just SQLite) taught me real-world backend architecture.

Tip: Learn how to structure your database models cleanly early on.

Which Udemy FastAPI Courses Were Most Worth It?

Here’s how I’d rank them based on usefulness:

1. FastAPI — The Complete Course 2025 (Beginner + Advanced) by Eric Roby and Chad Darby

Best overall: thorough, updated, covers both beginner and advanced topics.

2. Complete FastAPI masterclass from scratch by Catalin Stefan

This course is essential for understanding how FastAPI’s request/response validation really works.

3. Mastering REST APIs with FastAPI by Jose Selvatierra

This is a great course to learn how to build professional APIs using FastAPI, including 100% test coverage, background tasks, user authentication, and more!

4. The Complete FastAPI Course With OAuth & JWT Authentication by Ashutosh Pawar

This one is a great course to learn how to built modern, authenticated REST API with FastAPI, Python, SQLAlchemy, OAuth & JWT and its also very hands-on.

5. 2025 Deploy ML Model in Production with FastAPI and Docker

Deploying ML Model in production is hard but this course will teach you that. In this course, you will learn to build and deploy RESTful APIs for serving ML models efficiently.

These are the best Udemy courses you can join to learn FastAPI in 2025. If you can only pick one or two, start with the FastAPI — The Complete Course 2025 (Beginner + Advanced) by Eric Roby and Chad Darby

What I Wish I Knew Before?

There are always few thing which you wish to know before you start learning a new technology. Here are those things which I wish I knew before:

FastAPI is deceptively simple at first glance. Mastery takes real projects and deployments.
Async support is optional — but async-first design unlocks its full power.
Documentation generation is amazing — spend time learning how to customize OpenAPI schemas.
Testing FastAPI apps is easy with TestClient, but I underestimated the value of unit testing APIs early.

Should You Learn FastAPI in 2025?

Absolutely, you should learn FastAPI in 2025. In fact, if you’re a Python developer, FastAPI is one of the most important frameworks you can learn right now — whether you want to:

Build fast backend APIs
Create Microservices for a larger system
Serve AI/ML models in production
Develop serverless apps

FastAPI combines modern Python features (type hints, async) with practical developer experience (great docs, performance, flexibility).
It’s not a “trendy” framework — it’s here to stay.

And if you’re serious about leveling up, invest in one or two quality Udemy courses, build a few projects, and deploy them.

That’s what made the real difference for me.

Related Resources to Continue Learning

FastAPI Official Docs: Extremely well-written and beginner-friendly
Pydantic Documentation: Learn to master data validation
RealPython Articles on FastAPI
Docker and PostgreSQL Basics (for backend deployment)
Testing FastAPI Applications (learn pytest and TestClient)

That’s all about the best Udemy courses to learn FastAPI in 2025. You can choose one of two courses from this list to start with and then slowly start building things. That’s the best way to learn.

By the way, if you want to join multiple course on Udemy, its may be worth getting a Udemy Personal Plan, which will give instant access of more than 11,000 top quality Udemy courses for just $30 a month. If you got a lot of time and want to save money, Udemy Personal Plan will be perfect for you.

Other Resource and Course Articles you may like

Thanks for reading this article so far. If you find these Udemy Courses for learning FastAPI then please share with your friends and colleagues. If you have any questions or feedback, then please drop a note.

P. S. — If you are keen to learn FastAPI in 2025 and looking for a free online training course to start with then you can start with Crash Course On FastAPI For Web Developers- Level 1 Part 2 course on Udemy. This course is completely free and great resource to learn how to use Fast API in 2025

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