This is a small sample project demonstrating how to build an API with MongoDB and FastAPI. It was written to accompany a blog post - you should go read it!
# Install the requirements:
python3.9 -m venv venv
source venv/bin/activate
pip install -r requirements.txt
# Configure the location of your MongoDB database:
export MONGODB_URL="mongodb+srv://<username>:<password>@<url>/<db>?retryWrites=true&w=majority"
# Start the service:
python -m uvicorn app:app --reload # without `python -m` the multiprocessing library tries to use system python instead of venv(Check out MongoDB Atlas if you need a MongoDB database.)
Now you can load http://localhost:8000 in your browser ... but there won't be much to see until you've inserted some data. (OpenAPI documentation is at http://localhost:8000/docs.)
If you have any questions or suggestions, check out the MongoDB Community Forums!