"description": "Successful Response",
                            "content": {"application/json": {"schema": {}}},
                        },
                    },
                    "summary": "Route With Extras",
                    "operationId": "route_with_extras__get",
                    "x-custom-extension": "value",
                }
            },
        },

def custom_openapi():
    if app.openapi_schema:
        return app.openapi_schema
    openapi_schema = get_openapi(
        title="Custom title",
        version="2.5.0",
        summary="This is a very custom OpenAPI schema",
        description="Here's a longer description of the custom **OpenAPI** schema",
        routes=app.routes,
    )
    openapi_schema["info"]["x-logo"] = {

class License(BaseModelWithConfig):
    name: str
    identifier: Optional[str] = None
    url: Optional[AnyUrl] = None


class Info(BaseModelWithConfig):
    title: str
    summary: Optional[str] = None
    description: Optional[str] = None
    termsOfService: Optional[str] = None
    contact: Optional[Contact] = None
    license: Optional[License] = None
    version: str

* `summary`: Краткое описание API.
* `description`: Описание вашего API; может включать Markdown и будет отображается в документации.
* `routes`: Список маршрутов — это каждая зарегистрированная *операция пути*. Берутся из `app.routes`.

/// info | Информация

Параметр `summary` доступен в OpenAPI 3.1.0 и выше, поддерживается FastAPI версии 0.99.0 и выше.

///

    assert response.json() == {
        "openapi": "3.1.0",
        "info": {"title": "FastAPI", "version": "0.1.0"},
        "paths": {
            "/invoices/": {
                "post": {
                    "summary": "Create Invoice",

        {
            "openapi": "3.1.0",
            "info": {"title": "FastAPI", "version": "0.1.0"},
            "paths": {
                "/users": {
                    "get": {
                        "summary": "Get User",
                        "operationId": "get_user_users_get",
                        "responses": {
                            "200": {
                                "description": "Successful Response",

                                },
                            },
                            "description": "Validation Error",
                        },
                    },
                    "summary": "Read Item",
                },
            },
        },
        "components": {
            "schemas": {
                "HTTPValidationError": {
                    "properties": {

description: Changes to the telemetry upload configuration
title: "x/telemetry/config: proposal title"
labels: ["Telemetry-Proposal"]
projects: ["golang/29"]
body:
- type: textarea
  attributes:
    label: Summary
    description: >
      What change are you proposing to the upload configuration, and why?
      For new upload configuration, which new counters will be collected, what

        "openapi": "3.1.0",
        "info": {
            "title": "FastAPI",
            "version": "0.1.0",
        },
        "paths": {
            "/items/": {
                "get": {
                    "summary": "Read Items",
                    "operationId": "read_items_items__get",
                    "responses": {
                        "200": {
                            "description": "Successful Response",

class Item(BaseModel):
    name: str
    description: str | None = None
    price: float
    tax: float | None = None
    tags: set[str] = set()


@app.post(
    "/items/",
    response_model=Item,
    summary="Create an item",
    response_description="The created item",
)
async def create_item(item: Item):
    """
    Create an item with all the information:

    - **name**: each item must have a name