from fastapi import FastAPI

app = FastAPI()


@app.get("/items/")
def read_items():

예를 들면, 여러분이 4개의 API 엔드포인트(*경로 처리*)를 가지고 있다고 해봅시다:

* `/items/public/`
* `/items/private/`
* `/users/{user_id}/activate`
* `/items/pro/`

그 다음 각각에 대해 그저 의존성과 하위 의존성을 사용하여 다른 권한 요구 사항을 추가할 수 있을 겁니다:

```mermaid
graph TB

current_user(["current_user"])
active_user(["active_user"])
admin_user(["admin_user"])
paying_user(["paying_user"])

public["/items/public/"]
private["/items/private/"]

from fastapi import FastAPI

app = FastAPI()


@app.get("/items/", operation_id="some_specific_id_you_define")
async def read_items():

from fastapi import FastAPI

app = FastAPI()


@app.get("/items/{item_id}")
async def read_item(item_id):

from fastapi import FastAPI

app = FastAPI()


@app.post("/items/", status_code=201)
async def create_item(name: str):

</details>

### Check it

Open your browser at [http://127.0.0.1:8000/items/5?q=somequery](http://127.0.0.1:8000/items/5?q=somequery).

You will see the JSON response as:

```JSON
{"item_id": 5, "q": "somequery"}
```

You already created an API that:

* Receives HTTP requests in the _paths_ `/` and `/items/{item_id}`.
* Both _paths_ take `GET` operations (also known as HTTP _methods_).

### 檢查 { #check-it }

使用瀏覽器開啟 [http://127.0.0.1:8000/items/5?q=somequery](http://127.0.0.1:8000/items/5?q=somequery)。

你將會看到以下 JSON 回應：

```JSON
{"item_id": 5, "q": "somequery"}
```

你已經建立了一個具有以下功能的 API：

* 透過路徑 `/` 和 `/items/{item_id}` 接受 HTTP 請求。
* 以上兩個路徑都接受 `GET` 操作（也被稱為 HTTP _方法_）。
* 路徑 `/items/{item_id}` 有一個 `int` 型別的路徑參數 `item_id`。
* 路徑 `/items/{item_id}` 有一個可選的 `str` 查詢參數 `q`。

        assertTrue(written > 12); // Minimum size for fixed parameters

        // Verify search attributes (masked with 0x37)
        assertEquals(0x37, SMBUtil.readInt2(buffer, 0));

        // Verify max items
        assertEquals(100, SMBUtil.readInt2(buffer, 2));

        // Verify flags (should be 0x00)
        assertEquals(0x00, SMBUtil.readInt2(buffer, 4));

For example, let's say you define a *path operation* `/items/`:

{* ../../docs_src/behind_a_proxy/tutorial001_01_py310.py hl[6] *}

If the client tries to go to `/items`, by default, it would be redirected to `/items/`.

But before setting the *CLI Option* `--forwarded-allow-ips` it could redirect to `http://localhost:8000/items/`.

from fastapi import FastAPI, Header

app = FastAPI()


@app.get("/items/")
async def read_items(
    strange_header: str | None = Header(default=None, convert_underscores=False),
):