Make sure you create a [virtual environment](../virtual-environments.md){.internal-link target=_blank}, activate it, and then **install FastAPI**:

<div class="termy">

```console
$ pip install "fastapi[standard]"

---> 100%
```

</div>

/// note

When you install with `pip install "fastapi[standard]"` it comes with some default optional standard dependencies.

FastAPI 可以进行识别，并生成表明无响应体的 OpenAPI 文档。

///

## 关于 HTTP 状态码

/// note | "笔记"

如果已经了解 HTTP 状态码，请跳到下一章。

///

在 HTTP 协议中，发送 3 位数的数字状态码是响应的一部分。

这些状态码都具有便于识别的关联名称，但是重要的还是数字。

简言之：

* `100` 及以上的状态码用于返回**信息**。这类状态码很少直接使用。具有这些状态码的响应不能包含响应体
* **`200`** 及以上的状态码用于表示**成功**。这些状态码是最常用的
    * `200` 是默认状态代码，表示一切**正常**
    * `201` 表示**已创建**，通常在数据库中创建新记录后使用
    * `204` 是一种特殊的例子，表示**无内容**。该响应在没有为客户端返回内容时使用，因此，该响应不能包含响应体

package handlers

import (
	"context"
	"net"
	"net/http"
	"net/http/httputil"
	"net/url"
	"strings"
	"sync"
	"time"
)

const defaultFlushInterval = time.Duration(100) * time.Millisecond

// Forwarder forwards all incoming HTTP requests to configured transport.
type Forwarder struct {
	RoundTripper http.RoundTripper
	PassHost     bool
	Logger       func(error)

					sampleTimeStr,
					"us-west-1",
					"s3",
					"aws4_request"),
				// valid "X-Amz-Date" query.
				"X-Amz-Date", queryTime.UTC().Format(iso8601Format),
				"X-Amz-Expires", getDurationStr(100),
				"X-Amz-Signature", "abcd",
				"X-Amz-SignedHeaders", "",
			},
			expectedPreSignValues: preSignValues{},
			expectedErrCode:       ErrMissingFields,
		},
		// Test case - 8.

func Test_localLocker_expireOldLocksExpire(t *testing.T) {
	rng := rand.New(rand.NewSource(0))
	quorum := 0
	// Numbers of unique locks
	for _, locks := range []int{100, 1000, 1e6} {
		if testing.Short() && locks > 100 {
			continue
		}
		t.Run(fmt.Sprintf("%d-locks", locks), func(t *testing.T) {
			// Number of readers per lock...
			for _, readers := range []int{1, 10, 100} {
				if locks > 1000 && readers > 1 {
					continue

      context.get(), in_components, device_name, status.get());
  ASSERT_TRUE(TF_GetCode(status.get()) == TF_OK) << TF_Message(status.get());

  // Loop to make synchronization failures more deterministic
  for (int i = 0; i < 100; ++i) {
    TensorHandlePtr multiply_result(
        Multiply(context.get(), combined_value.get(), combined_value.get(),
                 status.get()));

     */
    protected String semicolonStr = "_SCLN_";

    /**
     * A string to replace &.
     */
    protected String ampersandStr = "_AMP_";

    protected int maxDuplicatedPath = 100;

    protected String charsetName = Constants.UTF_8;

    /**
     * A directory to store downloaded files.
     */
    protected File baseDir;

    protected File createFile(final String path) {

        .add100Continue()
        .streamHandler(body)
        .build(),
    )
    val call =
      client.newCall(
        Request.Builder()
          .url(server.url("/"))
          .header("Expect", "100-continue")
          .post(AsyncRequestBody())
          .build(),
      )
    call.execute().use { response ->
      val requestBody = (call.request().body as AsyncRequestBody?)!!.takeSink()

<div class="termy">

```console
$ pip install pydantic-settings
---> 100%
```

</div>

Es ist bereits enthalten, wenn Sie die `all`-Extras installiert haben, mit:

<div class="termy">

```console
$ pip install "fastapi[all]"
---> 100%
```

</div>

/// info

    @Resource
    protected volatile FesenClient fesenClient;

    protected String index;

    protected int scrollTimeout = 60000;

    protected int scrollSize = 100;

    protected int bulkBufferSize = 10;

    protected int numberOfShards = 5;

    protected int numberOfReplicas = 1;

    protected int idPrefixLength = 445;