Even though all your code is written assuming there's just `/app`.

And the proxy would be **"stripping"** the **path prefix** on the fly before transmitting the request to the app server (probably Uvicorn via FastAPI CLI), keeping your application convinced that it is being served at `/app`, so that you don't have to update all your code to include the prefix `/api/v1`.

Here we are including it in the message just for demonstration purposes.

Then, if you start Uvicorn with:

Alternatively, if you don't have a way to provide a command line option like `--root-path` or equivalent, you can set the `root_path` parameter when creating your FastAPI app:

Passing the `root_path` to `FastAPI` would be the equivalent of passing the `--root-path` command line option to Uvicorn or Hypercorn.

For example:

Will generate an OpenAPI schema like:

If you don't want **FastAPI** to include an automatic server using the `root_path`, you can use the parameter `root_path_in_servers=False`:

and then it won't include it in the OpenAPI schema.

To disable them, set their URLs to `None` when creating your `FastAPI` app:

And similarly for ReDoc...

/// tip

Now, to be able to test that everything works, create a *path operation*:

To disable them, set their URLs to `None` when creating your `FastAPI` app:

That way, the same route class can handle gzip compressed or uncompressed requests.

Here we use it to create a `GzipRequest` from the original request.

/// note | "Technical Details"

All we need to do is handle the request inside a `try`/`except` block:

If an exception occurs, the`Request` instance will still be in scope, so we can read and make use of the request body when handling the error:

You can also set the `route_class` parameter of an `APIRouter`:

In this example, the *path operations* under the `router` will use the custom `TimedRoute` class, and will have an extra `X-Response-Time` header in the response with the time it took to generate the response:

{* ../../docs_src/extending_openapi/tutorial001.py hl[1,4,7:9] *}

Then, use the same utility function to generate the OpenAPI schema, inside a `custom_openapi()` function:

{* ../../docs_src/extending_openapi/tutorial001.py hl[2,15:21] *}

Now you can add the ReDoc extension, adding a custom `x-logo` to the `info` "object" in the OpenAPI schema:

{* ../../docs_src/extending_openapi/tutorial001.py hl[22:24] *}

You can use the property `.openapi_schema` as a "cache", to store your generated schema.

It will be generated only once, and then the same cached schema will be used for the next requests.

{* ../../docs_src/extending_openapi/tutorial001.py hl[13:14,25:26] *}

Now you can replace the `.openapi()` method with your new function.

{* ../../docs_src/extending_openapi/tutorial001.py hl[29] *}

Once you go to <a href="http://127.0.0.1:8000/redoc" class="external-link" target="_blank">http://127.0.0.1:8000/redoc</a> you will see that you are using your custom logo (in this example, **FastAPI**'s logo):

Here's a small preview of how you could integrate Strawberry with FastAPI:

{* ../../docs_src/graphql/tutorial001.py hl[3,22,25:26] *}

You can learn more about Strawberry in the <a href="https://strawberry.rocks/" class="external-link" target="_blank">Strawberry documentation</a>.

And also the docs about <a href="https://strawberry.rocks/docs/integrations/fastapi" class="external-link" target="_blank">Strawberry with FastAPI</a>.

* 📝 Update includes in `docs/en/docs/advanced/middleware.md`. PR [#12582](https://github.com/fastapi/fastapi/pull/12582) by [@montanarograziano](https://github.com/montanarograziano).

* 📝 Update includes in `docs/en/docs/advanced/additional-status-codes.md`. PR [#12577](https://github.com/fastapi/fastapi/pull/12577) by [@krishnamadhavan](https://github.com/krishnamadhavan).

* 📝 Update includes in `docs/en/docs/advanced/advanced-dependencies.md`. PR [#12578](https://github.com/fastapi/fastapi/pull/12578) by [@krishnamadhavan](https://github.com/krishnamadhavan).