# 기능

## FastAPI의 기능

**FastAPI**는 다음과 같은 기능을 제공합니다:

### 개방형 표준을 기반으로

* <abbr title="엔드포인트, 라우트로도 알려져 있습니다">경로</abbr><abbr title="POST, GET, PUT, DELETE와 같은 HTTP 메소드로 알려져 있습니다">작동</abbr>, 매개변수, 본문 요청, 보안 그 외의 선언을 포함한 API 생성을 위한 <a href="https://github.com/OAI/OpenAPI-Specification" class="external-link" target="_blank"><strong>OpenAPI</strong></a>

					break drain
				}
			}
		}
	}()

	lastBatchProcess := time.Now()

	buf := bytebufferpool.Get()
	enc := jsoniter.ConfigCompatibleWithStandardLibrary.NewEncoder(buf)
	defer bytebufferpool.Put(buf)

	isDirQueue := h.config.QueueDir != ""

	// globalBuffer is always created or adjusted
	// before this method is launched.
	logChLock.Lock()
	globalBuffer := logChBuffers[name]
	logChLock.Unlock()

Параметр `response_model` может быть указан для любой *операции пути*:

* `@app.get()`
* `@app.post()`
* `@app.put()`
* `@app.delete()`
* и др.

//// tab | Python 3.10+

```Python hl_lines="17  22  24-27"
{!> ../../docs_src/response_model/tutorial001_py310.py!}
```

////

//// tab | Python 3.9+

   * buildOrThrow() will still throw as if the duplicates had not been eliminated. And the exception
   * message must mention two values that were associated with the duplicate key in two different
   * calls to Builder.put (though we don't really care *which* two values if there were more than
   * two). These considerations lead us to have a field of type DuplicateKey in the Builder, which

      2.0. If a copy of the MPL was not
      distributed with this file, You can
      obtain one at
      http://mozilla.org/MPL/2.0/.

If it is not possible or desirable to put the notice in a particular file, then
You may include the notice in a location (such as a LICENSE file in a relevant
directory) where a recipient would be likely to look for such a notice.

With respect to development inside an IDE the workspace from which we would like to resolve and retrieve dependencies is a read-only local repository to Mercury which is put at the front-end of the search order of any repository that Mercury will consult for artifacts.

h4. Generation of plugin metadata and packaging

# レスポンスモデル

*path operations* のいずれにおいても、`response_model`パラメータを使用して、レスポンスのモデルを宣言することができます:

* `@app.get()`
* `@app.post()`
* `@app.put()`
* `@app.delete()`
* など。

```Python hl_lines="17"
{!../../docs_src/response_model/tutorial001.py!}
```

/// note | "備考"

`response_model`は「デコレータ」メソッド（`get`、`post`など）のパラメータであることに注意してください。すべてのパラメータやボディのように、*path operation関数* のパラメータではありません。

///

    // which had real keys with null values.)
    Map<String, String> removalNotifications = Maps.newHashMap();
    for (RemovalNotification<String, String> notification : listener) {
      removalNotifications.put(notification.getKey(), notification.getValue());
      assertEquals(
          "Unexpected key/value pair passed to removalListener",
          notification.getKey(),
          notification.getValue());
    }

	if panicOnError {
		panic(fmt.Errorf(format, args...))
	}
	if p.lineNum == p.errorLine {
		// Only one error per line.
		return
	}
	p.errorLine = p.lineNum
	if p.lex != nil {
		// Put file and line information on head of message.
		format = "%s:%d: " + format + "\n"
		args = append([]interface{}{p.lex.File(), p.lineNum}, args...)
	}
	fmt.Fprintf(p.errorWriter, format, args...)
	p.errorCount++

Now let's jump to the fun stuff. 🎉

## Add `Query` to `Annotated` in the `q` parameter

Now that we have this `Annotated` where we can put more information (in this case some additional validation), add `Query` inside of `Annotated`, and set the parameter `max_length` to `50`:

//// tab | Python 3.10+

```Python hl_lines="9"