How do I create and run a FastAPI project in Visual Studio Code?

Install Python and the FastAPI dependencies, create a virtual environment, then run the app with Uvicorn using the reload option for automatic updates.

What is the difference between GET, POST, PUT, and DELETE requests in FastAPI?

GET retrieves data, POST creates data, PUT updates existing data, and DELETE removes data through API endpoints.

How does FastAPI connect to PostgreSQL and prevent data loss after a server restart?

FastAPI connects to PostgreSQL to store application data persistently, so records remain available after the server restarts.

Free online course Python Fast API

Duration of the online course: 1 hours and 34 minutes

(4)

Build REST APIs with FastAPI and Python, from setup to PostgreSQL integration. Free course to practice GET/POST/PUT/DELETE, validation and status codes.

In this free course, learn about

What APIs are, what they do, and how clients/servers communicate
Setting up Python in VS Code and prerequisites to run Python projects
Creating and using virtual environments; why isolation matters
Starting a FastAPI app; understanding server options like auto-reload
Using Postman: install on Windows and send common HTTP request types
Building GET endpoints in FastAPI; routing and path conflict behavior
Implementing POST endpoints; core differences between GET and POST
Schema validation with FastAPI/Pydantic for request and response data
Implementing DELETE and assigning unique IDs to resources (posts)
Using response status codes correctly, including what 204 No Content means
Implementing PUT for updates and understanding PUT’s purpose
Installing PostgreSQL and pgAdmin; using pgAdmin to manage the database
Connecting FastAPI to PostgreSQL to persist data across server restarts
Performing DB operations and using SQL commit to save transactions

About the free online course

Learn to build modern backend services by creating real REST APIs with Python and FastAPI. This free online course guides you from the first concept of what an API is to the moment your application can persist data in a PostgreSQL database. Along the way, you will practice the essentials that backend developers use daily: designing endpoints, handling requests safely, validating input, returning clear responses, and testing everything with the right tools.

You start by setting up a productive development environment in Visual Studio Code and understanding what you need to run Python reliably. From there, you create a virtual environment so each project stays clean, repeatable, and easy to share. Once the FastAPI app is running, you see how a development server behaves, why hot reload speeds up iteration, and how routing works when multiple functions compete for the same path.

As you build your API, you will work with common HTTP methods and learn when to choose each one. You will create endpoints for reading, creating, updating, and deleting resources, while also learning the practical difference between GET and POST, and the purpose of PUT for updates. To make your API more professional, you will apply schema validation so your application can reject bad data early and consistently, reducing bugs and making behavior predictable for clients.

Testing becomes second nature as you use Postman to send requests and inspect responses. You will interpret HTTP response status codes to communicate outcomes clearly, including what it means when a response intentionally has no content. Finally, you will connect your API to PostgreSQL and manage the database using pgAdmin. With database operations and proper commits, your data survives server restarts and your API moves closer to production-ready behavior.

By the end, you will have the confidence to spin up a FastAPI project from scratch, structure endpoints sensibly, and connect persistent storage, giving you a strong foundation for backend development, portfolio projects, and further learning in Python web services.

Course content

Video class: What is an API? - Python FASTAPI Tutorial 1 03m
Exercise: What does an API do?
Video class: How To Setup Python in Visual Studio Code 02m
Exercise: What is needed to run Python in Visual Studio Code?
Video class: Creating A Virtual Environment - Python FASTAPI Tutorial 2 03m
Exercise: Why is a virtual environment important in Python projects?

Video class: Starting FASTAPI - Python FASTAPI Tutorial 3 10m
Exercise: What is the purpose of the 'reload' command in a server setup?
Video class: How To Download POSTMAN on windows? 02m
Exercise: What types of HTTP requests can be made using Postman?

Video class: HTTP Get Request - Python FASTAPI Tutorial 4 07m
Exercise: What happens when multiple functions handle the same GET request path?
Video class: HTTP Post Request - Python FASTAPI Tutorial 5 09m
Exercise: What is the main difference between HTTP GET and POST methods?
Video class: Schema Validation - Python FASTAPI Tutorial 6 14m
Exercise: What is the result of sending a GET request with an empty path to the server?
Video class: HTTP Delete Request - Python FASTAPI Tutorial 7 07m
Exercise: How is a unique ID assigned to each post in the server program?
Video class: HTTP Response Status Codes - Python FASTAPI Tutorial Lesson 8 06m
Exercise: What does HTTP status code 204 indicate in server responses?
Video class: HTTP Put Method - Python FASTAPI Tutorial Lesson 9 06m
Exercise: What is the purpose of an HTTP PUT request?

Video class: How To Install PostgreSQL pgAdmin on windows? 02m
Exercise: Which program is used to manage the PostgreSQL database in the video?
Video class: PostgreSQL Connection - Python FASTAPI Tutorial Lesson 10 05m
Exercise: What solution eliminates data loss on server restart in a FastAPI project?
Video class: PostgreSQL Database Operation - Python FASTAPI Tutorial Lesson 11 11m
Exercise: What is the purpose of the 'commit' function in SQL operations?

Learn aboutPostgreSQL

Explore free online PostgreSQL courses designed to help beginners and developers master databases, SQL queries, data modeling, administration, performance tuning, and security. Learn PostgreSQL at your own pace with practical lessons, flexible study options, and an included certificate to showcase your skills and advance your database career.

Learn aboutPostman

Explore the best free online Postman courses and learn API testing, development, automation, collections, environments, and REST workflows at your own pace. Build practical skills with beginner-friendly lessons and hands-on projects, then earn a certificate to showcase your Postman expertise and advance your software career.

Learn aboutFASTAPI

Explore the best free FastAPI online courses and learn to build fast, modern Python APIs from beginner to advanced level. Master routing, validation, authentication, databases, testing, and deployment through practical lessons. Enroll today, study at your own pace, and earn a certificate to showcase your FastAPI development skills.

Learn aboutPython

Explore free online Python courses and build in-demand programming skills at your own pace. Learn Python basics, data analysis, automation, web development, and more through flexible beginner-friendly lessons. Enroll today, study from anywhere, and earn a free certificate to showcase your Python skills and boost your career.