fastapi-production-patterns
Build production-ready FastAPI applications with async patterns, Pydantic validation, dependency injection, middleware, and database integration. Use for FastAPI endpoints, async workflows, or API design. Use when this capability is needed.
ソース情報
- リポジトリ
- tomevault-io/skills-registry
- ソースの最終更新活動
- 2026年4月28日 22:53
- 検出された SKILL.md の言語
- 英語
- スター
- 1
- フォーク
- 0
インストール方法
デフォルトでは、最初にソースを確認する Prompt が選択されています。直接コマンドに切り替えるか、ローカルコピーをダウンロードすることもできます。
ソースファイルを確認
インストールを決める前に、SKILL.md と SkillsMP に表示されている付属ファイルをお読みください。
ファイルエクスプローラー
2 ファイルSKILL.md を表示中
SKILL.md
ソースの指示 · 読み取り専用プレビュー- name
- fastapi-production-patterns
- description
- Build production-ready FastAPI applications with async patterns, Pydantic validation, dependency injection, middleware, and database integration. Use for FastAPI endpoints, async workflows, or API design. Use when this capability is needed.
- metadata
- {"author":"ak-eyther"}
# FastAPI Production Patterns
## App Structure with Lifespan
```python
from fastapi import FastAPI
from contextlib import asynccontextmanager
@asynccontextmanager
async def lifespan(app: FastAPI):
# Startup
await database.connect()
yield
# Shutdown
await database.disconnect()
app = FastAPI(lifespan=lifespan)
```
## Async Endpoints
```python
from fastapi import FastAPI, Depends
from sqlalchemy.ext.asyncio import AsyncSession
@app.get("/users/{user_id}")
async def get_user(
user_id: int,
db: AsyncSession = Depends(get_db)
):
user = await db.get(User, user_id)
if not user:
raise HTTPException(status_code=404, detail="User not found")
return user
```
## Pydantic Models with Validation
```python
from pydantic import BaseModel, validator, Field
class UserCreate(BaseModel):
email: str = Field(..., example="user@example.com")
age: int = Field(..., ge=0, le=150)
@validator('email')
def validate_email(cls, v):
if '@' not in v or '.' not in v.split('@')[1]:
raise ValueError('Invalid email format')
return v.lower()
class Config:
orm_mode = True
```
## Dependency Injection
```python
from sqlalchemy.ext.asyncio import AsyncSession
async def get_db() -> AsyncSession:
async with AsyncSessionLocal() as session:
yield session
async def get_current_user(
token: str = Depends(oauth2_scheme),
db: AsyncSession = Depends(get_db)
):
user = await verify_token(token, db)
return user
@app.get("/me")
async def read_users_me(
current_user: User = Depends(get_current_user)
):
return current_user
```
## CORS Middleware
```python
from fastapi.middleware.cors import CORSMiddleware
app.add_middleware(
CORSMiddleware,
allow_origins=["https://yourdomain.com"],
allow_credentials=True,
allow_methods=["GET", "POST", "PUT", "DELETE"],
allow_headers=["*"],
)
```
## Error Handling
```python
from fastapi import Request
from fastapi.responses import JSONResponse
@app.exception_handler(ValueError)
async def value_error_handler(request: Request, exc: ValueError):
return JSONResponse(
status_code=400,
content={"detail": str(exc)}
)
class CustomException(Exception):
def __init__(self, name: str):
self.name = name
@app.exception_handler(CustomException)
async def custom_exception_handler(request: Request, exc: CustomException):
return JSONResponse(
status_code=418,
content={"message": f"Oops! {exc.name}"}
)
```
## Background Tasks
```python
from fastapi import BackgroundTasks
def send_email(email: str, message: str):
# Send email logic
pass
@app.post("/send-notification/")
async def send_notification(
email: str,
background_tasks: BackgroundTasks
):
background_tasks.add_task(send_email, email, "notification")
return {"message": "Notification sent in background"}
```
## File Upload
```python
from fastapi import File, UploadFile
@app.post("/upload/")
async def upload_file(file: UploadFile = File(...)):
contents = await file.read()
# Process file
return {"filename": file.filename, "size": len(contents)}
```
## Scripts
- `scripts/skill_info.py`: Print skill name and description.
---
> Converted and distributed by [TomeVault](https://tomevault.io/claim/ak-eyther) — claim your Tome and manage your conversions.
<!-- tomevault:4.0:skill_md:2026-04-14 -->
GitHubで見る