from fastapi import FastAPI
from fastapi.responses import RedirectResponse

app = FastAPI()


@app.get("/typer")
async def redirect_typer():

from fastapi import FastAPI
from fastapi.responses import RedirectResponse

app = FastAPI()


@app.get("/teleport")
async def get_teleport() -> RedirectResponse:

from fastapi import FastAPI
from fastapi.responses import RedirectResponse

app = FastAPI()


@app.get("/pydantic", response_class=RedirectResponse, status_code=302)
async def redirect_pydantic():

from fastapi import FastAPI, Response
from fastapi.responses import JSONResponse, RedirectResponse

app = FastAPI()


@app.get("/portal")
async def get_portal(teleport: bool = False) -> Response:
    if teleport:
        return RedirectResponse(url="https://www.youtube.com/watch?v=dQw4w9WgXcQ")

This is the ideal way to get the best performance.

///

### `RedirectResponse` { #redirectresponse }

Returns an HTTP redirect. Uses a 307 status code (Temporary Redirect) by default.

You can return a `RedirectResponse` directly:

{* ../../docs_src/custom_response/tutorial006_py310.py hl[2,9] *}

---

from starlette.responses import JSONResponse as JSONResponse  # noqa
from starlette.responses import PlainTextResponse as PlainTextResponse  # noqa
from starlette.responses import RedirectResponse as RedirectResponse  # noqa
from starlette.responses import Response as Response  # noqa
from starlette.responses import StreamingResponse as StreamingResponse  # noqa
from typing_extensions import deprecated

try:

You can import them directly from `fastapi.responses`:

```python
from fastapi.responses import (
    FileResponse,
    HTMLResponse,
    JSONResponse,
    ORJSONResponse,
    PlainTextResponse,
    RedirectResponse,
    Response,
    StreamingResponse,
    UJSONResponse,
)
```

## FastAPI Responses

There were a couple of custom FastAPI response classes that were intended to optimize JSON performance.

/// note | 技術細節

但如果你宣告了回應模型或回傳型別，將會直接用它來把資料序列化為 JSON，並直接回傳具有正確 JSON media type 的回應，而不會使用 `JSONResponse` 類別。

這是取得最佳效能的理想方式。

///

### `RedirectResponse` { #redirectresponse }

回傳一個 HTTP 重新導向。預設使用 307 狀態碼（Temporary Redirect）。

你可以直接回傳 `RedirectResponse`：

{* ../../docs_src/custom_response/tutorial006_py310.py hl[2,9] *}

---

或者你可以在 `response_class` 參數中使用它：

And tools will also be happy because both `RedirectResponse` and `JSONResponse` are subclasses of `Response`, so the type annotation is correct.

### Annotate a Response Subclass { #annotate-a-response-subclass }

You can also use a subclass of `Response` in the type annotation:

{* ../../docs_src/response_model/tutorial003_03_py310.py hl[8:9] *}

                Read more about it in the
                [FastAPI docs for Custom Response - HTML, Stream, File, others](https://fastapi.tiangolo.com/advanced/custom-response/#redirectresponse).
                """
            ),
        ] = Default(JSONResponse),
        name: Annotated[
            str | None,
            Doc(
                """