- [Beta](#beta)
      - [Alpha](#alpha)
      - [CLI Improvements](#cli-improvements)
      - [Misc](#misc)
    - [API Changes](#api-changes)
    - [Other notable changes](#other-notable-changes-5)
      - [API Machinery](#api-machinery)
      - [Apps](#apps)
      - [Auth](#auth)
      - [CLI](#cli)
      - [Cloud Provider](#cloud-provider)

// Supports following actions:
// - restart (restarts all the MinIO instances in a setup)
// - stop (stops all the MinIO instances in a setup)
// - freeze (freezes all incoming S3 API calls)
// - unfreeze (unfreezes previously frozen S3 API calls)
//
// This newer API now returns back status per remote peer and local regarding
// if a "restart/stop" was successful or not. Service signal now supports

import java.util.Objects;
import java.util.concurrent.ConcurrentHashMap;

import org.apache.maven.api.model.InputSource;
import org.apache.maven.model.Model;
import org.apache.maven.model.building.ModelProcessor;

/**
 * Provides the super POM that all models implicitly inherit from.
 *
 * @deprecated use {@link org.apache.maven.api.services.ModelBuilder} instead
 */
@Named
@Singleton
@Deprecated(since = "4.0.0")

package(
    # copybara:uncomment default_applicable_licenses = ["//tensorflow:license"],
    licenses = ["notice"],
)

# Currently pybind extension shared objects must use only C API headers since
# the C API has static initializers duplicated in the Python bindings. So we
# need a second rule that omits .cc files, in
# tensorflow/python:_pywrap_parallel_device.
filegroup(
    name = "lib_headers",

Você verá a documentação automática interativa da API (fornecida por <a href="https://github.com/swagger-api/swagger-ui" class="external-link" target="_blank">Swagger UI</a>):

![Swagger UI](https://fastapi.tiangolo.com/img/index/index-01-swagger-ui-simple.png)

### Documentação Alternativa da API

// Start the batch expiration job, resumes if there was a pending job via "job.ID"
func (r *BatchJobExpire) Start(ctx context.Context, api ObjectLayer, job BatchJobRequest) error {
	ri := &batchJobInfo{
		JobID:     job.ID,
		JobType:   string(job.Type()),
		StartTime: job.Started,
	}
	if err := ri.loadOrInit(ctx, api, job); err != nil {
		return err
	}

	globalBatchJobsMetrics.save(job.ID, ri)
	lastObject := ri.Object

	}

	if r.Header.Get(xMinIOExtract) == "true" && strings.Contains(object, archivePattern) {
		api.getObjectInArchiveFileHandler(ctx, objectAPI, bucket, object, w, r)
	} else {
		api.getObjectHandler(ctx, objectAPI, bucket, object, w, r)
	}
}

func (api objectAPIHandlers) headObjectHandler(ctx context.Context, objectAPI ObjectLayer, bucket, object string, w http.ResponseWriter, r *http.Request) {

* 请求头
* Cookies
* 等

**FastAPI** 使用这种方式验证数据、转换数据，并自动生成 API 文档。

但有时，我们也需要直接访问 `Request` 对象。

## `Request` 对象的细节

实际上，**FastAPI** 的底层是 **Starlette**，**FastAPI** 只不过是在  **Starlette** 顶层提供了一些工具，所以能直接使用 Starlette 的  <a href="https://www.starlette.io/requests/" class="external-link" target="_blank">`Request`</a> 对象。

但直接从 `Request` 对象提取数据时（例如，读取请求体），**FastAPI** 不会验证、转换和存档数据（为 API 文档使用 OpenAPI）。

不过，仍可以验证、转换与注释（使用 Pydantic 模型的请求体等）其它正常声明的参数。

Having the return model ensure that a value is always available and always `int` (not `None`) is very useful for the API clients, they can write much simpler code having this certainty.

Also, **automatically generated clients** will have simpler interfaces, so that the developers communicating with your API can have a much better time working with your API. 😎

///

from pydantic_settings import BaseSettings


class Settings(BaseSettings):
    app_name: str = "Awesome API"
    admin_email: str
    items_per_user: int = 50

    class Config: