---
title: server
sidebarTitle: server
---

# `prefect.server.utilities.server`



Utilities for the Prefect REST API server.


## Functions

### `method_paths_from_routes` <sup><a href="https://github.com/PrefectHQ/prefect/blob/main/src/prefect/server/utilities/server.py#L15" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python
method_paths_from_routes(routes: Sequence[BaseRoute]) -> set[str]
```


Generate a set of strings describing the given routes in the format: &lt;method&gt; &lt;path&gt;

For example, "GET /logs/"


## Classes

### `PrefectAPIRoute` <sup><a href="https://github.com/PrefectHQ/prefect/blob/main/src/prefect/server/utilities/server.py#L30" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>


A FastAPIRoute class which attaches an async stack to requests that exits before
a response is returned.

Requests already have `request.scope['fastapi_astack']` which is an async stack for
the full scope of the request. This stack is used for managing contexts of FastAPI
dependencies. If we want to close a dependency before the request is complete
(i.e. before returning a response to the user), we need a stack with a different
scope. This extension adds this stack at `request.state.response_scoped_stack`.


**Methods:**

#### `get_route_handler` <sup><a href="https://github.com/PrefectHQ/prefect/blob/main/src/prefect/server/utilities/server.py#L42" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python
get_route_handler(self) -> Callable[[Request], Coroutine[Any, Any, Response]]
```

### `PrefectRouter` <sup><a href="https://github.com/PrefectHQ/prefect/blob/main/src/prefect/server/utilities/server.py#L59" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>


A base class for Prefect REST API routers.


**Methods:**

#### `add_api_route` <sup><a href="https://github.com/PrefectHQ/prefect/blob/main/src/prefect/server/utilities/server.py#L68" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python
add_api_route(self, path: str, endpoint: Callable[..., Any], **kwargs: Any) -> None
```

Add an API route.

For routes that return content and have not specified a `response_model`,
use return type annotation to infer the response model.

For routes that return No-Content status codes, explicitly set
a `response_class` to ensure nothing is returned in the response body.

