Es el "**decorador de operaciones de path**".

También puedes usar las otras operaciones:

* `@app.post()`
* `@app.put()`
* `@app.delete()`

y las más exóticas:

* `@app.options()`
* `@app.head()`
* `@app.patch()`
* `@app.trace()`

!!! tip "Consejo"
    Tienes la libertad de usar cada operación (método de HTTP) como quieras.

    Bu bir **yol operasyonu dekoratörüdür**.

Ayrıca diğer operasyonları da kullanabilirsiniz:

* `@app.post()`
* `@app.put()`
* `@app.delete()`

Daha az kullanılanları da kullanabilirsiniz:

* `@app.options()`
* `@app.head()`
* `@app.patch()`
* `@app.trace()`

!!! tip "İpucu"
    Her işlemi (HTTP metod) istediğiniz gibi kullanmakta özgürsünüz.

import org.codelibs.fess.Constants;
import org.codelibs.fess.app.pager.AccessTokenPager;
import org.codelibs.fess.app.web.CrudMode;
import org.codelibs.fess.app.web.admin.accesstoken.AdminAccesstokenAction;
import org.codelibs.fess.app.web.api.ApiResult;
import org.codelibs.fess.app.web.api.ApiResult.ApiConfigResponse;
import org.codelibs.fess.app.web.api.ApiResult.ApiConfigsResponse;
import org.codelibs.fess.app.web.api.ApiResult.ApiResponse;

        app_method = getattr(FastAPI, method_name)
        router_sig = inspect.signature(router_method)
        app_sig = inspect.signature(app_method)
        param: inspect.Parameter
        for key, param in base_sig.parameters.items():
            router_param: inspect.Parameter = router_sig.parameters[key]
            app_param: inspect.Parameter = app_sig.parameters[key]

from sqlalchemy.orm import Session

from . import crud, models, schemas
from .database import SessionLocal, engine

models.Base.metadata.create_all(bind=engine)

app = FastAPI()


@app.middleware("http")
async def db_session_middleware(request: Request, call_next):
    response = Response("Internal server error", status_code=500)
    try:
        request.state.db = SessionLocal()

但其余的会话代码基本上都是一样的，只要复制就可以了。

```Python hl_lines="8-13"
{!../../../docs_src/sql_databases/sql_app/tests/test_sql_app.py!}
```

!!! tip "提示"

    为减少代码重复，最好把这段代码写成函数，在 `database.py` 与 `tests/test_sql_app.py`中使用。

    为了把注意力集中在测试代码上，本例只是复制了这段代码。

## 创建数据库

因为现在是想在新文件中使用新数据库，所以要使用以下代码创建数据库：

```Python
Base.metadata.create_all(bind=engine)
```

import org.codelibs.fess.Constants;
import org.codelibs.fess.app.pager.RelatedQueryPager;
import org.codelibs.fess.app.service.RelatedQueryService;
import org.codelibs.fess.app.web.CrudMode;
import org.codelibs.fess.app.web.api.ApiResult;
import org.codelibs.fess.app.web.api.ApiResult.ApiConfigResponse;
import org.codelibs.fess.app.web.api.ApiResult.ApiResponse;
import org.codelibs.fess.app.web.api.ApiResult.ApiUpdateResponse;

        raise TypeError("vars() argument must have __dict__ attribute")


@needs_pydanticv2
def test_pydanticv2():
    from pydantic import field_serializer

    app = FastAPI()

    @app.get("/fast_uuid")
    def return_fast_uuid():
        asyncpg_uuid = MyUuid("a10ff360-3b1e-4984-a26f-d3ab460bdb51")
        assert isinstance(asyncpg_uuid, uuid.UUID)
        assert type(asyncpg_uuid) != uuid.UUID

    completed: bool


app = FastAPI()


@app.on_event("startup")
async def startup():
    await database.connect()


@app.on_event("shutdown")
async def shutdown():
    await database.disconnect()


@app.get("/notes/", response_model=List[Note])
async def read_notes():
    query = notes.select()
    return await database.fetch_all(query)


@app.post("/notes/", response_model=Note)

from fastapi.testclient import TestClient

from ...utils import needs_py39


@pytest.fixture(name="app")
def get_app():
    from docs_src.request_files.tutorial002_an_py39 import app

    return app


@pytest.fixture(name="client")
def get_client(app: FastAPI):
    client = TestClient(app)
    return client


@needs_py39
def test_post_form_no_body(client: TestClient):