spakky-fastapi 6.1.3

FastAPI plugin for Spakky framework

Spakky FastAPI

FastAPI integration plugin for Spakky Framework.

Installation

pip install spakky-fastapi

Or install via Spakky extras:

pip install spakky[fastapi]

Features

• Automatic route registration: Routes are registered from @ApiController classes
• All HTTP methods: GET, POST, PUT, DELETE, PATCH, HEAD, OPTIONS, WebSocket
• OpenAPI integration: Tags and documentation automatically configured
• Error handling middleware: Built-in exception handling with debug mode
• Context management: Request-scoped dependency injection support

Usage

Basic Controller

from spakky.plugins.fastapi.stereotypes.api_controller import ApiController
from spakky.plugins.fastapi.routes import get, post

@ApiController("/users", tags=["users"])
class UserController:
    def __init__(self, user_service: UserService) -> None:
        self.user_service = user_service

    @get("/{user_id}")
    async def get_user(self, user_id: int) -> User:
        return await self.user_service.get(user_id)

    @post("")
    async def create_user(self, request: CreateUserRequest) -> User:
        return await self.user_service.create(request)

Available Route Decorators

from spakky.plugins.fastapi.routes import (
    get,
    post,
    put,
    delete,
    patch,
    head,
    options,
    websocket,
)

@ApiController("/api")
class MyController:
    @get("/items")
    async def list_items(self) -> list[Item]:
        ...

    @post("/items")
    async def create_item(self, item: CreateItemRequest) -> Item:
        ...

    @put("/items/{item_id}")
    async def update_item(self, item_id: int, item: UpdateItemRequest) -> Item:
        ...

    @delete("/items/{item_id}")
    async def delete_item(self, item_id: int) -> None:
        ...

    @websocket("/ws")
    async def websocket_endpoint(self, websocket: WebSocket) -> None:
        await websocket.accept()
        while True:
            data = await websocket.receive_text()
            await websocket.send_text(f"Echo: {data}")

Accessing FastAPI Instance

from fastapi import FastAPI
from spakky.core.application.application import SpakkyApplication

# After application.start()
fast_api = application.container.get(FastAPI)

Testing with TestClient

from fastapi.testclient import TestClient

def test_get_user(application: SpakkyApplication) -> None:
    fast_api = application.container.get(FastAPI)
    client = TestClient(fast_api)
    response = client.get("/users/1")
    assert response.status_code == 200

Components

Component	Description
ApiController	Stereotype for REST API controllers with prefix and tags
get, post, put, etc.	Route decorators for HTTP methods
websocket	WebSocket endpoint decorator
ErrorHandlingMiddleware	Built-in exception handling middleware
RegisterRoutesPostProcessor	Automatic route registration post-processor

Configuration

The plugin automatically registers a FastAPI instance as a Pod. You can customize it by registering your own FastAPI instance before loading the plugin:

from fastapi import FastAPI

@Pod()
def custom_fastapi() -> FastAPI:
    return FastAPI(
        title="My API",
        description="Custom API configuration",
        version="1.0.0",
    )

License

MIT