# Merkmale { #features }

## FastAPI Merkmale { #fastapi-features }

**FastAPI** ermöglicht Ihnen Folgendes:

### Basiert auf offenen Standards { #based-on-open-standards }

            """
            A dictionary with Swagger UI OAuth2 initialization configurations.

            Read more about the available configuration options in the
            [Swagger UI docs](https://swagger.io/docs/open-source-tools/swagger-ui/usage/oauth2/).
            """
        ),
    ] = None,
    swagger_ui_parameters: Annotated[
        dict[str, Any] | None,
        Doc(
            """

FastAPI Cloud es el sponsor principal y proveedor de financiamiento para los proyectos open source *FastAPI and friends*. ✨

#### Despliega en otros proveedores de cloud { #deploy-to-other-cloud-providers }

FastAPI es open source y está basado en estándares. Puedes desplegar apps de FastAPI en cualquier proveedor de cloud que elijas.

    `OkUrlFactory` to create new instances of `HttpURLConnection`:

    ```java
    // OkHttp 1.x:
    HttpURLConnection connection = client.open(url);

    // OkHttp 2.x:
    HttpURLConnection connection = new OkUrlFactory(client).open(url);
    ```

 *  **Custom caches are no longer supported.** In OkHttp 1.x it was possible to

import okhttp3.HttpUrl.Companion.toHttpUrlOrNull
import okhttp3.testing.PlatformRule
import org.junit.jupiter.api.Test

@Suppress("HttpUrlsUsage") // Don't warn if we should be using https://.
open class HttpUrlJvmTest {
  val platform = PlatformRule()

  /** This one's ugly: the HttpUrl's host is non-empty, but the URI's host is null. */
  @Test
  fun hostContainsOnlyStrippedCharacters() {

# Funcionalidades { #features }

## Funcionalidades de FastAPI { #fastapi-features }

**FastAPI** te ofrece lo siguiente:

### Basado en estándares abiertos { #based-on-open-standards }

.main-footer {\n    transition: none;\n  }\n}\n\n.control-sidebar-open .control-sidebar {\n  display: block !important;\n}\n\n.control-sidebar-open .control-sidebar, .control-sidebar-open .control-sidebar::before {\n  right: 0;\n}\n\n.control-sidebar-open.control-sidebar-push .content-wrapper,\n.control-sidebar-open.control-sidebar-push .main-footer, .control-sidebar-open.control-sidebar-push-slide .content-wrapper,\n.control-sidebar-open.control-sidebar-push-slide .main-footer {\n  margin-right: 25...

          "intervalFactor": 1,
          "legendFormat": "{{server}}",
          "metric": "process_start_time_seconds",
          "refId": "A",
          "step": 60
        }
      ],
      "title": "Open FDs ",
      "type": "timeseries"
    },
    {
      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },
      "description": "",
      "fieldConfig": {

{* ../../docs_src/dependencies/tutorial013_an_py310.py ln[30:38] hl[31:33] *}

But as `generate_stream()` doesn't use the database session, it is not really necessary to keep the session open while sending the response.

If you have this specific use case using SQLModel (or SQLAlchemy), you could explicitly close the session after you don't need it anymore:

/*
 * Copyright (C) 2010 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,