How to Create a Custom 404 Not Found Page in FastAPI?

Custom 404 Not Found Page with FastAPI

To create a custom 404 Not Found page, FastAPI offers several approaches. The appropriate method depends on your specific requirements.

Redirect on 404 Status Code

<br>@app.middleware("http")<br>async def redirect_on_not_found(request: Request, call_next):</p>
<div class="code" style="position:relative; padding:0px; margin:0px;"><pre class="brush:php;toolbar:false">response = await call_next(request)
if response.status_code == 404:
    return RedirectResponse("https://fastapi.tiangolo.com")
else:
    return response