
- Adds a collapsible section for the project concept - Splits the project concept document into several child documents. - Moves the workspace and dependencies documents to under the project section - Adds a mkdocs plugin for redirects, so links to the moved documents still work I attempted to make the minimum required changes to the contents of the documents here. There is a lot of room for improvement on the content of each new child document. For review purposes, I want to do that work separately. I'd prefer if the review focused on this structure and idea rather than the content of the files. I expect to do this to other documentation pages that would otherwise be very nested. The project concept landing page and nav (collapsed by default) looks like this now: <img width="1507" alt="Screenshot 2024-11-14 at 11 28 45 AM" src="https://github.com/user-attachments/assets/88288b09-8463-49d4-84ba-ee27144b62a5">
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Using uv with FastAPI
FastAPI is a modern, high-performance Python web framework. You can use uv to manage your FastAPI project, including installing dependencies, managing environments, running FastAPI applications, and more.
!!! note
You can view the source code for this guide in the [uv-fastapi-example](https://github.com/astral-sh/uv-fastapi-example) repository.
Migrating an existing FastAPI project
As an example, consider the sample application defined in the FastAPI documentation, structured as follows:
project
└── app
├── __init__.py
├── main.py
├── dependencies.py
├── routers
│ ├── __init__.py
│ ├── items.py
│ └── users.py
└── internal
├── __init__.py
└── admin.py
To use uv with this application, inside the project
directory run:
$ uv init --app
This creates an project with an application layout
and a pyproject.toml
file.
Then, add a dependency on FastAPI:
$ uv add fastapi --extra standard
You should now have the following structure:
project
├── pyproject.toml
└── app
├── __init__.py
├── main.py
├── dependencies.py
├── routers
│ ├── __init__.py
│ ├── items.py
│ └── users.py
└── internal
├── __init__.py
└── admin.py
And the contents of the pyproject.toml
file should look something like this:
[project]
name = "uv-fastapi-example"
version = "0.1.0"
description = "FastAPI project"
readme = "README.md"
requires-python = ">=3.12"
dependencies = [
"fastapi[standard]",
]
From there, you can run the FastAPI application with:
$ uv run fastapi dev
uv run
will automatically resolve and lock the project dependencies (i.e., create a uv.lock
alongside the pyproject.toml
), create a virtual environment, and run the command in that
environment.
Test the app by opening http://127.0.0.1:8000/?token=jessica in a web browser.
Deployment
To deploy the FastAPI application with Docker, you can use the following Dockerfile
:
FROM python:3.12-slim
# Install uv.
COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /bin/
# Copy the application into the container.
COPY . /app
# Install the application dependencies.
WORKDIR /app
RUN uv sync --frozen --no-cache
# Run the application.
CMD ["/app/.venv/bin/fastapi", "run", "app/main.py", "--port", "80", "--host", "0.0.0.0"]
Build the Docker image with:
$ docker build -t fastapi-app .
Run the Docker container locally with:
$ docker run -p 8000:80 fastapi-app
Navigate to http://127.0.0.1:8000/?token=jessica in your browser to verify that the app is running correctly.
!!! tip
For more on using uv with Docker, see the [Docker guide](./docker.md).