FastAPI

FastAPI is a modern, fast (high-performance), web framework for building APIs with Python based on standard Python type hints. estimation based on tests conducted by an internal development team, building production applications. If you don't know, check the "In a hurry?" section about async and await in the docs. The command fastapi dev reads your main.py file automatically, detects the FastAPI app in it, and starts a server using Uvicorn. By default, fastapi dev will start with auto-reload enabled for local development. Now modify the file main.py to receive a body from a PUT request. In summary, you declare once the types of parameters, body, etc. as function parameters. We just scratched the surface, but you already get the idea of how it all works. ...and see how your editor will auto-complete the attributes and know their types: For a more complete example including more features, see the Tutorial - User Guide . You can optionally deploy your FastAPI app to FastAPI Cloud with a single command. 🚀 FastAPI Cloud is built by the same author and team behind FastAPI . FastAPI Cloud is the primary sponsor and funding provider for the FastAPI and friends open source projects. ✨ FastAPI is open source and based on standards. You can deploy FastAPI apps to any cloud provider you choose. Follow your cloud provider's guides to deploy FastAPI apps with them. 🤓 Independent TechEmpower benchmarks show FastAPI applications running under Uvicorn as one of the fastest Python frameworks available, only below Starlette and Uvicorn themselves (used internally by FastAPI). ( ) uvicorn - for the server that loads and serves your application. This includes uvicorn[standard] , which includes some dependencies (e.g. uvloop ) needed for high performance serving. fastapi-cli[standard] - to provide the fastapi command. This includes fastapi-cloud-cli , which allows you to deploy your FastAPI application to FastAPI Cloud. If you don't want to include the standard optional dependencies, you can install with pip install fastapi instead of pip install "fastapi[standard]" . If you want to install FastAPI with the standard dependencies but without the fastapi-cloud-cli , you can install with pip install "fastapi[standard-no-fastapi-cloud-cli]" .