该命令行程序 `fastapi` 就是 **FastAPI CLI**。

FastAPI CLI 接收你的 Python 程序路径，自动检测包含 FastAPI 的变量（通常命名为 `app`）及其导入方式，然后启动服务。

在生产环境中，你应该使用 `fastapi run` 命令。🚀

在内部，**FastAPI CLI** 使用了 <a href="https://www.uvicorn.dev" class="external-link" target="_blank">Uvicorn</a>，这是一个高性能、适用于生产环境的 ASGI 服务器。😎

## `fastapi dev`

当你运行 `fastapi dev` 时，它将以开发模式运行。

默认情况下，它会启用**自动重载**，因此当你更改代码时，它会自动重新加载服务器。该功能是资源密集型的，且相较不启用时更不稳定，因此你应该仅在开发环境下使用它。

A major advantage of certificate-based authentication compared to other STS authentication methods, like OpenID Connect or LDAP/AD, is that client authentication works without any additional/external component that must be constantly available. Therefore, certificate-based authentication may provide better availability / lower operational complexity.

_current_module = _sys.modules[__name__]

if not hasattr(_current_module, "__path__"):
  __path__ = [_tf_api_dir]
elif _tf_api_dir not in __path__:
  __path__.append(_tf_api_dir)

# Hook external TensorFlow modules.

# Load tensorflow-io-gcs-filesystem if enabled
if (_os.getenv("TF_USE_MODULAR_FILESYSTEM", "0") == "true" or
    _os.getenv("TF_USE_MODULAR_FILESYSTEM", "0") == "1"):

    <div class="md-copyright__highlight">
        The FastAPI trademark is owned by <a href="https://tiangolo.com" target="_blank">@tiangolo</a> and is registered in the US and across other regions
    </div>
    {% if not config.extra.generator == false %}
    Made with
    <a href="https://squidfunk.github.io/mkdocs-material/" target="_blank" rel="noopener">
        Material for MkDocs
    </a>
    {% endif %}

import junit.framework.TestSuite;

/**
 * Suite of tests for OpenJdk 6 tests. The existence of this class is a hack because the
 * suitebuilder won't pick up the suites directly in the other classes because they don't extend
 * TestCase. Ergh.
 *
 * @author Kevin Bourrillion
 */
@AndroidIncompatible // test-suite builders
public class OpenJdk6Tests extends TestCase {
  public static Test suite() {

etc ## The key in the secret must be 'config.env' ## extraSecret: ~ ## OpenID Identity Management ## The following section documents environment variables for enabling external identity management using an OpenID Connect (OIDC)-compatible provider. ## See https://min.io/docs/minio/linux/operations/external-iam/configure-openid-external-identity-management.html for a tutorial on using these variables. oidc: enabled: false configUrl: "https://identity-provider-url/.well-known/openid-configuration" clientId:...

etc ## The key in the secret must be 'config.env' ## extraSecret: ~ ## OpenID Identity Management ## The following section documents environment variables for enabling external identity management using an OpenID Connect (OIDC)-compatible provider. ## See https://min.io/docs/minio/linux/operations/external-iam/configure-openid-external-identity-management.html for a tutorial on using these variables. oidc: enabled: false configUrl: "https://identity-provider-url/.well-known/openid-configuration" clientId:...

etc ## The key in the secret must be 'config.env' ## extraSecret: ~ ## OpenID Identity Management ## The following section documents environment variables for enabling external identity management using an OpenID Connect (OIDC)-compatible provider. ## See https://min.io/docs/minio/linux/operations/external-iam/configure-openid-external-identity-management.html for a tutorial on using these variables. oidc: enabled: false configUrl: "https://identity-provider-url/.well-known/openid-configuration" clientId:...

the secret must be 'config.env' ## # extraSecret: minio-extraenv ## OpenID Identity Management ## The following section documents environment variables for enabling external identity management using an OpenID Connect (OIDC)-compatible provider. ## See https://min.io/docs/minio/linux/operations/external-iam/configure-openid-external-identity-management.html for a tutorial on using these variables. oidc: enabled: false configUrl: "https://identity-provider-url/.well-known/openid-configuration" clientId:...

Um alle Optionen kennenzulernen, die Sie haben, schauen Sie sich <a href="https://docs.pydantic.dev/latest/concepts/types/" class="external-link" target="_blank">Pydantics Typübersicht</a> an. Sie werden einige Beispiele im nächsten Kapitel kennenlernen.