Read the blog post: Streaming video with FastAPI.
You will need a video in the video format that is supported by your browser. Place it in the root folder as video.mp4 or modify the video path in the source code.
To run the example, install Poetry and then execute:
poetry install && poetry shell
uvicorn main:app --reloadThen just navigate to the main page at http://127.0.0.1:8000/ and the video should be streamed.