359 lines
11 KiB
Python
359 lines
11 KiB
Python
import logging
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from pathlib import Path
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from typing import Any, List, Union
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import typer
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from rich import print
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from rich.tree import Tree
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from typing_extensions import Annotated
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from fastapi_cli.discover import get_import_data
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from fastapi_cli.exceptions import FastAPICLIException
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from . import __version__
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from .logging import setup_logging
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from .utils.cli import get_rich_toolkit, get_uvicorn_log_config
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app = typer.Typer(rich_markup_mode="rich")
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logger = logging.getLogger(__name__)
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try:
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import uvicorn
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except ImportError: # pragma: no cover
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uvicorn = None # type: ignore[assignment]
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try:
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from fastapi_cloud_cli.cli import (
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app as fastapi_cloud_cli,
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)
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app.add_typer(fastapi_cloud_cli)
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except ImportError: # pragma: no cover
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pass
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def version_callback(value: bool) -> None:
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if value:
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print(f"FastAPI CLI version: [green]{__version__}[/green]")
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raise typer.Exit()
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@app.callback()
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def callback(
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version: Annotated[
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Union[bool, None],
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typer.Option(
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"--version", help="Show the version and exit.", callback=version_callback
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),
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] = None,
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verbose: bool = typer.Option(False, help="Enable verbose output"),
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) -> None:
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"""
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FastAPI CLI - The [bold]fastapi[/bold] command line app. 😎
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Manage your [bold]FastAPI[/bold] projects, run your FastAPI apps, and more.
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Read more in the docs: [link=https://fastapi.tiangolo.com/fastapi-cli/]https://fastapi.tiangolo.com/fastapi-cli/[/link].
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"""
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log_level = logging.DEBUG if verbose else logging.INFO
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setup_logging(level=log_level)
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def _get_module_tree(module_paths: List[Path]) -> Tree:
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root = module_paths[0]
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name = f"🐍 {root.name}" if root.is_file() else f"📁 {root.name}"
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root_tree = Tree(name)
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if root.is_dir():
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root_tree.add("[dim]🐍 __init__.py[/dim]")
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tree = root_tree
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for sub_path in module_paths[1:]:
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sub_name = (
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f"🐍 {sub_path.name}" if sub_path.is_file() else f"📁 {sub_path.name}"
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)
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tree = tree.add(sub_name)
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if sub_path.is_dir():
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tree.add("[dim]🐍 __init__.py[/dim]")
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return root_tree
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def _run(
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path: Union[Path, None] = None,
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*,
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host: str = "127.0.0.1",
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port: int = 8000,
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reload: bool = True,
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workers: Union[int, None] = None,
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root_path: str = "",
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command: str,
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app: Union[str, None] = None,
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proxy_headers: bool = False,
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) -> None:
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with get_rich_toolkit() as toolkit:
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server_type = "development" if command == "dev" else "production"
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toolkit.print_title(f"Starting {server_type} server 🚀", tag="FastAPI")
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toolkit.print_line()
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toolkit.print(
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"Searching for package file structure from directories with [blue]__init__.py[/blue] files"
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)
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try:
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import_data = get_import_data(path=path, app_name=app)
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except FastAPICLIException as e:
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toolkit.print_line()
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toolkit.print(f"[error]{e}")
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raise typer.Exit(code=1) from None
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logger.debug(f"Importing from {import_data.module_data.extra_sys_path}")
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logger.debug(f"Importing module {import_data.module_data.module_import_str}")
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module_data = import_data.module_data
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import_string = import_data.import_string
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toolkit.print(f"Importing from {module_data.extra_sys_path}")
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toolkit.print_line()
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root_tree = _get_module_tree(module_data.module_paths)
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toolkit.print(root_tree, tag="module")
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toolkit.print_line()
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toolkit.print(
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"Importing the FastAPI app object from the module with the following code:",
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tag="code",
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)
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toolkit.print_line()
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toolkit.print(
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f"[underline]from [bold]{module_data.module_import_str}[/bold] import [bold]{import_data.app_name}[/bold]"
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)
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toolkit.print_line()
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toolkit.print(
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f"Using import string: [blue]{import_string}[/]",
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tag="app",
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)
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url = f"http://{host}:{port}"
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url_docs = f"{url}/docs"
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toolkit.print_line()
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toolkit.print(
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f"Server started at [link={url}]{url}[/]",
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f"Documentation at [link={url_docs}]{url_docs}[/]",
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tag="server",
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)
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if command == "dev":
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toolkit.print_line()
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toolkit.print(
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"Running in development mode, for production use: [bold]fastapi run[/]",
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tag="tip",
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)
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if not uvicorn:
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raise FastAPICLIException(
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"Could not import Uvicorn, try running 'pip install uvicorn'"
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) from None
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toolkit.print_line()
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toolkit.print("Logs:")
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toolkit.print_line()
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uvicorn.run(
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app=import_string,
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host=host,
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port=port,
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reload=reload,
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workers=workers,
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root_path=root_path,
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proxy_headers=proxy_headers,
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log_config=get_uvicorn_log_config(),
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)
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@app.command()
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def dev(
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path: Annotated[
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Union[Path, None],
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typer.Argument(
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help="A path to a Python file or package directory (with [blue]__init__.py[/blue] files) containing a [bold]FastAPI[/bold] app. If not provided, a default set of paths will be tried."
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),
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] = None,
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*,
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host: Annotated[
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str,
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typer.Option(
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help="The host to serve on. For local development in localhost use [blue]127.0.0.1[/blue]. To enable public access, e.g. in a container, use all the IP addresses available with [blue]0.0.0.0[/blue]."
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),
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] = "127.0.0.1",
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port: Annotated[
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int,
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typer.Option(
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help="The port to serve on. You would normally have a termination proxy on top (another program) handling HTTPS on port [blue]443[/blue] and HTTP on port [blue]80[/blue], transferring the communication to your app."
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),
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] = 8000,
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reload: Annotated[
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bool,
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typer.Option(
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help="Enable auto-reload of the server when (code) files change. This is [bold]resource intensive[/bold], use it only during development."
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),
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] = True,
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root_path: Annotated[
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str,
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typer.Option(
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help="The root path is used to tell your app that it is being served to the outside world with some [bold]path prefix[/bold] set up in some termination proxy or similar."
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),
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] = "",
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app: Annotated[
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Union[str, None],
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typer.Option(
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help="The name of the variable that contains the [bold]FastAPI[/bold] app in the imported module or package. If not provided, it is detected automatically."
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),
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] = None,
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proxy_headers: Annotated[
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bool,
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typer.Option(
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help="Enable/Disable X-Forwarded-Proto, X-Forwarded-For, X-Forwarded-Port to populate remote address info."
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),
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] = True,
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) -> Any:
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"""
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Run a [bold]FastAPI[/bold] app in [yellow]development[/yellow] mode. 🧪
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This is equivalent to [bold]fastapi run[/bold] but with [bold]reload[/bold] enabled and listening on the [blue]127.0.0.1[/blue] address.
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It automatically detects the Python module or package that needs to be imported based on the file or directory path passed.
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If no path is passed, it tries with:
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- [blue]main.py[/blue]
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- [blue]app.py[/blue]
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- [blue]api.py[/blue]
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- [blue]app/main.py[/blue]
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- [blue]app/app.py[/blue]
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- [blue]app/api.py[/blue]
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It also detects the directory that needs to be added to the [bold]PYTHONPATH[/bold] to make the app importable and adds it.
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It detects the [bold]FastAPI[/bold] app object to use. By default it looks in the module or package for an object named:
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- [blue]app[/blue]
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- [blue]api[/blue]
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Otherwise, it uses the first [bold]FastAPI[/bold] app found in the imported module or package.
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"""
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_run(
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path=path,
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host=host,
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port=port,
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reload=reload,
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root_path=root_path,
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app=app,
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command="dev",
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proxy_headers=proxy_headers,
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)
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@app.command()
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def run(
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path: Annotated[
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Union[Path, None],
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typer.Argument(
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help="A path to a Python file or package directory (with [blue]__init__.py[/blue] files) containing a [bold]FastAPI[/bold] app. If not provided, a default set of paths will be tried."
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),
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] = None,
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*,
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host: Annotated[
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str,
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typer.Option(
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help="The host to serve on. For local development in localhost use [blue]127.0.0.1[/blue]. To enable public access, e.g. in a container, use all the IP addresses available with [blue]0.0.0.0[/blue]."
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),
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] = "0.0.0.0",
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port: Annotated[
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int,
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typer.Option(
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help="The port to serve on. You would normally have a termination proxy on top (another program) handling HTTPS on port [blue]443[/blue] and HTTP on port [blue]80[/blue], transferring the communication to your app."
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),
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] = 8000,
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reload: Annotated[
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bool,
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typer.Option(
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help="Enable auto-reload of the server when (code) files change. This is [bold]resource intensive[/bold], use it only during development."
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),
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] = False,
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workers: Annotated[
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Union[int, None],
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typer.Option(
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help="Use multiple worker processes. Mutually exclusive with the --reload flag."
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),
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] = None,
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root_path: Annotated[
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str,
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typer.Option(
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help="The root path is used to tell your app that it is being served to the outside world with some [bold]path prefix[/bold] set up in some termination proxy or similar."
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),
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] = "",
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app: Annotated[
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Union[str, None],
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typer.Option(
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help="The name of the variable that contains the [bold]FastAPI[/bold] app in the imported module or package. If not provided, it is detected automatically."
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),
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] = None,
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proxy_headers: Annotated[
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bool,
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typer.Option(
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help="Enable/Disable X-Forwarded-Proto, X-Forwarded-For, X-Forwarded-Port to populate remote address info."
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),
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] = True,
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) -> Any:
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"""
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Run a [bold]FastAPI[/bold] app in [green]production[/green] mode. 🚀
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This is equivalent to [bold]fastapi dev[/bold] but with [bold]reload[/bold] disabled and listening on the [blue]0.0.0.0[/blue] address.
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|
It automatically detects the Python module or package that needs to be imported based on the file or directory path passed.
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|
|
If no path is passed, it tries with:
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|
- [blue]main.py[/blue]
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- [blue]app.py[/blue]
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- [blue]api.py[/blue]
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- [blue]app/main.py[/blue]
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- [blue]app/app.py[/blue]
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- [blue]app/api.py[/blue]
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It also detects the directory that needs to be added to the [bold]PYTHONPATH[/bold] to make the app importable and adds it.
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|
It detects the [bold]FastAPI[/bold] app object to use. By default it looks in the module or package for an object named:
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- [blue]app[/blue]
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- [blue]api[/blue]
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Otherwise, it uses the first [bold]FastAPI[/bold] app found in the imported module or package.
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"""
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_run(
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path=path,
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host=host,
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port=port,
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reload=reload,
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workers=workers,
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root_path=root_path,
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app=app,
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command="run",
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proxy_headers=proxy_headers,
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)
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def main() -> None:
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app()
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