たとえば、`users` はアルファベット順では `items` の後に続きます。しかし、リストの最初に `users` のメタデータ辞書を追加したため、ドキュメントUIでは `users` が先に表示されます。

## OpenAPI URL

デフォルトでは、OpenAPIスキーマは `/openapi.json` で提供されます。

ただし、パラメータ `openapi_url` を使用して設定を変更できます。

たとえば、`/api/v1/openapi.json` で提供されるように設定するには:

```Python hl_lines="3"
{!../../docs_src/metadata/tutorial002.py!}
```

OpenAPIスキーマを完全に無効にする場合は、`openapi_url=None` を設定できます。これにより、それを使用するドキュメントUIも無効になります。

## ドキュメントのURL

from docs_src.app_testing.test_main import client, test_read_main


def test_main():
    test_read_main()


def test_openapi_schema():
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == {
        "openapi": "3.1.0",
        "info": {"title": "FastAPI", "version": "0.1.0"},
        "paths": {
            "/": {
                "get": {

    def post_router(item1: Item, item2: Item):
        return item1, item2  # pragma: nocover

    app.include_router(router)
    client = TestClient(app)
    response = client.get("/openapi.json")
    data = response.json()
    assert data == {
        "openapi": "3.1.0",
        "info": {"title": "FastAPI", "version": "0.1.0"},
        "paths": {
            "/": {
                "post": {
                    "summary": "Post Root",

#### OpenAPI và JSON Schema

OpenAPI định nghĩa một cấu trúc API cho API của bạn. Và cấu trúc đó bao gồm các dịnh nghĩa (or "schema") về dữ liệu được gửi đi và nhận về bởi API của bạn, sử dụng **JSON Schema**, một tiêu chuẩn cho cấu trúc dữ liệu JSON.

#### Kiểm tra `openapi.json`

    assert response.status_code == 200, response.text
    assert response.json() == [{"item_id": "Foo"}]


def test_openapi_schema():
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == {
        "openapi": "3.1.0",
        "info": {"title": "FastAPI", "version": "0.1.0"},
        "paths": {
            "/items/": {
                "get": {

    assert response.status_code == 200, response.text
    assert response.json() == [{"item_id": "Foo"}]


def test_openapi_schema():
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == {
        "openapi": "3.1.0",
        "info": {"title": "FastAPI", "version": "0.1.0"},
        "paths": {
            "/items/": {
                "get": {

def test_openapi_schema():
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == {
        "openapi": "3.1.0",
        "info": {
            "title": "Custom title",
            "summary": "This is a very custom OpenAPI schema",
            "description": "Here's a longer description of the custom **OpenAPI** schema",
            "version": "2.5.0",

#### OpenAPI i JSON Schema

OpenAPI definiuje API Schema dla Twojego API, który zawiera definicje (lub "schematy") danych wysyłanych i odbieranych przez Twój interfejs API przy użyciu **JSON Schema**, standardu dla schematów danych w formacie JSON.

#### Sprawdź `openapi.json`

                It will be included in the generated OpenAPI (e.g. visible at `/docs`).
                """
            ),
        ] = None,
        description: Annotated[
            Optional[str],
            Doc(
                """
                Security scheme description.

                It will be included in the generated OpenAPI (e.g. visible at `/docs`).
                """
            ),

    assert response.headers["location"] == "https://www.youtube.com/watch?v=dQw4w9WgXcQ"


def test_openapi_schema():
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == {
        "openapi": "3.1.0",
        "info": {"title": "FastAPI", "version": "0.1.0"},
        "paths": {
            "/teleport": {
                "get": {