在建立「路徑操作」時，你可能會遇到有固定路徑的情況。

像是 `/users/me`，假設它用來取得目前使用者的資料。

然後你也可能有一個路徑 `/users/{user_id}` 用來依使用者 ID 取得特定使用者的資料。

因為「路徑操作」會依宣告順序來比對，你必須確保 `/users/me` 的路徑在 `/users/{user_id}` 之前宣告：

{* ../../docs_src/path_params/tutorial003_py310.py hl[6,11] *}

否則，`/users/{user_id}` 的路徑也會匹配 `/users/me`，並「認為」它收到一個值為 `"me"` 的 `user_id` 參數。

同樣地，你不能重新定義同一路徑操作：

{* ../../docs_src/path_params/tutorial003b_py310.py hl[6,11] *}

            "type" : "keyword"
          },
          "updatedBy" : {
            "type" : "keyword"
          },
          "updatedTime" : {
            "type" : "long"
          },
          "username" : {
            "type" : "keyword"
          }
        }
      }
    },
    "settings" : {
      "index" : {
        "creation_date" : "1509021053135",
        "number_of_shards" : "5",

from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: str | None = None
    price: float
    tax: float | None = None


class User(BaseModel):
    username: str
    full_name: str | None = None


@app.put("/items/{item_id}")
async def update_item(item_id: int, item: Item, user: User):
    results = {"item_id": item_id, "item": item, "user": user}

	return []byte{}
}

func (m *MockConnMeta) RemoteAddr() net.Addr {
	return nil
}

func (m *MockConnMeta) LocalAddr() net.Addr {
	return nil
}

func newSSHConnMock(username string) ssh.ConnMetadata {
	return &MockConnMeta{username: username}
}

func TestSFTPAuthentication(t *testing.T) {
	for i, testCase := range iamTestSuites {
		t.Run(
			fmt.Sprintf("Test: %d, ServerType: %s", i+1, testCase.ServerTypeDescription),

from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: str | None = None
    price: float
    tax: float | None = None


class User(BaseModel):
    username: str
    full_name: str | None = None


@app.put("/items/{item_id}")
async def update_item(
    item_id: int, item: Item, user: User, importance: Annotated[int, Body()]
):

        }
        final String username = getUserBean().get().getUserId();
        try {
            userService.changePassword(username, form.newPassword);
            saveInfo(messages -> messages.addSuccessChangedPassword(GLOBAL));
        } catch (final Exception e) {
            logger.warn("Failed to change password for {}", username, e);

E então você também pode ter um path `/users/{user_id}` para obter dados sobre um usuário específico por algum ID de usuário.

Como as *operações de rota* são avaliadas em ordem, você precisa garantir que o path para `/users/me` seja declarado antes do de `/users/{user_id}`:

{* ../../docs_src/path_params/tutorial003_py310.py hl[6,11] *}

有时，*路径操作*中的路径是写死的。

比如要使用 `/users/me` 获取当前用户的数据。

然后还要使用 `/users/{user_id}`，通过用户 ID 获取指定用户的数据。

由于*路径操作*是按顺序依次运行的，因此，一定要在 `/users/{user_id}` 之前声明 `/users/me` ：

{* ../../docs_src/path_params/tutorial003_py310.py hl[6,11] *}

否则，`/users/{user_id}` 将匹配 `/users/me`，FastAPI 会**认为**正在接收值为 `"me"` 的 `user_id` 参数。

同样，你不能重复定义一个路径操作：

{* ../../docs_src/path_params/tutorial003b_py310.py hl[6,11] *}

from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: str | None = None
    price: float
    tax: float | None = None


class User(BaseModel):
    username: str
    full_name: str | None = None


@app.put("/items/{item_id}")
async def update_item(
    *,
    item_id: int,
    item: Item,
    user: User,
    importance: int = Body(gt=0),

But you are not restricted to using some specific data model, class or type.

Do you want to have an `id` and `email` and not have any `username` in your model? Sure. You can use these same tools.

Do you want to just have a `str`? Or just a `dict`? Or a database class model instance directly? It all works the same way.