# FastAPI
![How to Use Multithreading in FastAPI?](https://assets.apidog.com/blog-learn/2023/07/fastapi-threading--1-.png)
How to Use Multithreading in FastAPI?
This article will explore the usage of multi-threading in the FastAPI framework, covering common use cases, problem-solving approaches, and practical examples.
![How to Use WebSocket Protocol in FastAPI](https://assets.apidog.com/blog-learn/2023/07/ws-fastapi--1-.png)
How to Use WebSocket Protocol in FastAPI
Explore the capabilities of WebSocket protocol in FastAPI with this easy-to-follow guide. Learn how to leverage real-time, two-way communication for your projects, enabling smoother interactions and seamless data transfer.
![How to Use FastAPI APIRouters](https://assets.apidog.com/blog-learn/2023/07/apirouters--1-.png)
How to Use FastAPI APIRouters
In this article, we will dive into the world of FastAPI APIRouters and explore how to use FastAPI APIRouters.
![What is FastAPI](https://assets.apidog.com/blog-learn/2023/07/fastapi--1-.png)
What is FastAPI
FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.7+ based on standard Python type hints. It is designed to be easy to use and to provide high performance for building APIs.