if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);

      System.out.println(response.body().string());
    }
  }

  public static void main(String... args) throws Exception {
    new RequestBodyCompression().run();
  }

  /** This interceptor compresses the HTTP request body. Many webservers can't handle this! */

      System.out.println("Response 2 succeeded: " + response);
    } catch (IOException e) {
      System.out.println("Response 2 failed: " + e);
    }
  }

  public static void main(String... args) throws Exception {
    new PerCallSettings().run();
  }

      if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);

      System.out.println(response.body().string());
    }
  }

  public static void main(String... args) throws Exception {
    new PreemptiveAuth().run();
  }

  static final class BasicAuthInterceptor implements Interceptor {
    private final String credentials;
    private final String host;

### Fornecendo o `root_path` { #providing-the-root-path }

Para conseguir isso, você pode usar a opção de linha de comando `--root-path` assim:

<div class="termy">

```console
$ fastapi run main.py --forwarded-allow-ips="*" --root-path /api/v1

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

### 挂载子应用

在顶层应用 `app` 中，挂载子应用 `subapi`。

本例的子应用挂载在 `/subapi` 路径下：

{* ../../docs_src/sub_applications/tutorial001.py hl[11,19] *}

### 查看文档

如果主文件是 `main.py`，则用以下 `uvicorn` 命令运行主应用：

<div class="termy">

```console
$ uvicorn main:app --reload

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

INFO:     Waiting for application startup.
INFO:     Application startup complete.
```

</div>

<details markdown="1">
<summary>About the command <code>fastapi dev main.py</code>...</summary>

The command `fastapi dev` reads your `main.py` file, detects the **FastAPI** app in it, and starts a server using <a href="https://www.uvicorn.dev" class="external-link" target="_blank">Uvicorn</a>.

    <jsp:include page="/WEB-INF/view/common/admin/sidebar.jsp">
        <jsp:param name="menuCategoryType" value="system"/>
        <jsp:param name="menuType" value="storage"/>
    </jsp:include>
    <main class="content-wrapper">
        <div class="content-header">
            <div class="container-fluid">
                <div class="row mb-2">
                    <div class="col-sm-6">
                        <h1>

 * specific language governing permissions and limitations
 * under the License.
 */

/**
 * <h2>Maven Core API</h2>
 *
 * <h3>Session</h3>
 *
 * <p>The {@link org.apache.maven.api.Session} interface is the main entry point for Maven operations.
 * It maintains the state of a Maven execution and provides access to all core services and components.
 * Sessions are thread-safe and can be obtained in session-scoped components using the

 * <p>
 * This interface allows plugins and extensions to define and register additional project scopes
 * beyond the standard {@link ProjectScope#MAIN} and {@link ProjectScope#TEST} scopes.
 * Implementations of this interface will be discovered through the Java ServiceLoader mechanism
 * and their provided project scopes will be available throughout the Maven build process.
 * <p>

    // Running at time 150, the pool evicts.
    assertThat(pool.closeConnections(150L)).isEqualTo(0)
    assertThat(pool.connectionCount()).isEqualTo(0)
    assertThat(c1.socket().isClosed).isTrue()

    // Running again, the pool reports that no further runs are necessary.
    assertThat(pool.closeConnections(150L)).isEqualTo(-1)
    assertThat(pool.connectionCount()).isEqualTo(0)
    assertThat(c1.socket().isClosed).isTrue()
  }