Udemy – FastAPI: Build, Validate, Authenticate, Deploy Python APIs

A warm welcome to the FastAPI: Build, Validate, Authenticate, Deploy Python APIs course by Uplatz.

FastAPI is a modern, high-performance web framework for building APIs with Python 3.7+ using standard Python type hints. It’s designed to create RESTful APIs quickly, efficiently, and with minimal code, while providing automatic validation, serialization, and interactive documentation out of the box.

It’s built on top of:
Starlette → for the web parts (routing, middleware, etc.)
Pydantic → for data validation and settings management

How Does FastAPI Work?

Python Type Hints: FastAPI uses Python’s type hints to automatically generate request parsing, validation, and response serialization.
Async Support: It fully supports async and await, making it great for building non-blocking, high-concurrency applications.
Auto-generated Docs: FastAPI auto-generates interactive API docs using OpenAPI (Swagger UI and ReDoc) – without extra work.
Declarative Approach: You define what data is expected, and FastAPI handles parsing, validation, error responses, and docs generation behind the scenes.

Key Features of FastAPI

Fast Performance → Asynchronous framework with performance close to Node.js and Go.
Pythonic and Intuitive → Leverages Python 3.7+ type hints for clear, readable, and concise code.
Automatic Data Validation → Pydantic ensures all incoming data matches declared types and schemas.
Interactive API Documentation → Built-in Swagger UI and ReDoc interfaces auto-generated from code.
Dependency Injection System → Makes complex dependency management clean and easy.
Easy Integration with Databases → Supports tools like SQLAlchemy, Tortoise ORM, and async DB libraries.
Security and Auth Support → Includes built-in tools for OAuth2, JWT, and other authentication flows.
Extensible and Modular → Works well in both monolithic apps and microservice architectures.
Great for Production → Actively used by companies like Uber, Netflix, and Microsoft for production APIs.

FastAPI – Course Curriculum

Module 1: Introduction and Foundations

Getting Started
Introduction and primer to FastAPI. Setting up the development environment and understanding the framework’s core philosophy.

Module 2: Routing and Parameters

Routing and Parameters (Part 1)
Explore different routing methods using hands-on examples.
Routing and Parameters (Part 2)
Deep dive into path parameters, query parameters, and input validations.

Module 3: Data Validation with Pydantic

Data Validation with Pydantic (Part 1)
Learn types of data validations using Pydantic models with hands-on practice.
Data Validation with Pydantic (Part 2)
Explore advanced validation techniques and custom validators.

Module 4: Request Bodies and Form Data

Request Bodies and Form Data (Part 1)
Work with JSON request bodies, form data, and file uploads.
Request Bodies and Form Data (Part 2)
Continue hands-on exploration of multipart requests and complex data inputs.

Module 5: Responses and Status Codes

Response Models and Status Codes (Part 1)
Build response models with Pydantic V2 and handle serialization.
Response Models and Status Codes (Part 2)
Understand HTTP status codes and apply custom response headers.
Response Models and Status Codes (Part 3)
Define response schemas and auto-generate API documentation.

Module 6: Error Handling

Error Handling (Part 1)
Learn basic error handling techniques with practical examples.
Error Handling (Part 2)
Implement custom exceptions and global error handlers.
Error Handling (Part 3)
Combine strategies into best practice error management patterns.

Module 7: API Development Project

Basic API Development Tutorial
Create a basic API development project, from planning to execution.

Module 8: Database Integration

Database Integration
Integrate FastAPI with databases using SQLAlchemy and perform CRUD operations.
Advanced Database Operations
Handle relationships, joins, transactions, and optimizations in database interactions.

Module 9: Authentication

Basic Authentication
Implement simple authentication techniques for securing endpoints.
JWT Authentication using FastAPI
Build robust JWT-based authentication and authorization systems.

Module 10: Hands-on Projects

To-Do List Project
Build a functional to-do list API with full CRUD capabilities.
Simple Book Management API
Develop a book management system API with real-world features.

Module 11: Wrap-up and Practice

Common Questions and Answers
Review common developer questions and reinforce learning with practice exercises.

Benefits of Learning FastAPI

High Performance, Fast Execution
FastAPI is one of the fastest Python frameworks, thanks to its asynchronous support, making it ideal for scalable, high-concurrency applications.
Modern, Future-Proof Design
Built for Python 3.7+, FastAPI leverages modern Python features like type hints and async/await, aligning with current and future development best practices.
Automatic Validation and Serialization
With Pydantic integration, FastAPI offers powerful, automatic data validation and serialization, reducing bugs and significantly cutting development time.
Interactive, Auto-Generated Documentation
FastAPI automatically generates professional, interactive API documentation using OpenAPI (Swagger) and ReDoc, with no extra configuration needed.
Ease of Use and Developer Productivity
Its intuitive, declarative style allows developers to write less boilerplate code and focus on solving core problems, improving overall productivity.
Strong Ecosystem Integration
FastAPI easily connects with tools like SQLAlchemy, background tasks, OAuth2/JWT authentication, GraphQL, and WebSockets, supporting a wide range of use cases.
Asynchronous Support Out of the Box
Unlike many older frameworks, FastAPI fully supports asynchronous programming, making it excellent for microservices, real-time systems, and API-heavy architectures.
Scalable and Production-Ready
Used by companies like Uber, Netflix, and Microsoft, FastAPI is trusted in production environments, meaning the skills you gain are directly applicable to industry needs.
Improves Python Skills
Learning FastAPI deepens your understanding of advanced Python features, including type hints, async programming, and dependency injection.
Opens Career Opportunities
As FastAPI’s popularity grows, demand is rising for developers skilled in building high-performance APIs, giving you an edge in job markets and freelance projects.
Project Portfolio Boost
By building hands-on projects, you’ll quickly create real-world applications to showcase on GitHub or in interviews, strengthening your developer portfolio.
Community and Resources
FastAPI has a vibrant, supportive community, excellent documentation, and a rich ecosystem of tutorials and plugins to help you grow and troubleshoot effectively

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