## 允许无 Content-Type 的请求 { #allowing-requests-without-content-type }

如果你需要兼容不发送 `Content-Type` 头的客户端，可以通过设置 `strict_content_type=False` 来关闭严格检查：

{* ../../docs_src/strict_content_type/tutorial001_py310.py hl[4] *}

启用该设置后，缺少 `Content-Type` 头的请求其请求体也会按 JSON 解析，这与旧版本 FastAPI 的行为一致。

/// info | 信息

此行为和配置在 FastAPI 0.132.0 中新增。

#
# This file is autogenerated by pip-compile with Python 3.12
# by the following command:
#
#    bazel run //ci/official/requirements_updater:requirements.update
#
absl-py==2.2.2 \
    --hash=sha256:bf25b2c2eed013ca456918c453d687eab4e8309fba81ee2f4c1a6aa2494175eb \
    --hash=sha256:e5797bc6abe45f64fd95dc06394ca3f2bedf3b5d895e9da691c9ee3397d70092
    # via
    #   keras-nightly
    #   tb-nightly
astor==0.7.1 \

```console
$ <font color="#4E9A06">fastapi</font> run <u style="text-decoration-style:solid">main.py</u>

  <span style="background-color:#009485"><font color="#D3D7CF"> FastAPI </font></span>  Starting production server 🚀

             Searching for package file structure from directories
             with <font color="#3465A4">__init__.py</font> files

```console
$ <font color="#4E9A06">fastapi</font> run --workers 4 <u style="text-decoration-style:solid">main.py</u>

  <span style="background-color:#009485"><font color="#D3D7CF"> FastAPI </font></span>  Starting production server 🚀

             Searching for package file structure from directories with
             <font color="#3465A4">__init__.py</font> files

///

## Webhook を持つアプリ { #an-app-with-webhooks }

**FastAPI** アプリケーションを作成すると、`webhooks` という属性があり、ここで *path operations* と同様に（例: `@app.webhooks.post()`）*webhook* を定義できます。

{* ../../docs_src/openapi_webhooks/tutorial001_py310.py hl[9:12,15:20] *}

定義した webhook は **OpenAPI** スキーマおよび自動生成される **ドキュメント UI** に反映されます。

/// info | 情報

`app.webhooks` オブジェクトは実際には単なる `APIRouter` で、複数ファイルでアプリを構成する際に使うものと同じ型です。

///

## Example Lambda handler

Install the necessary dependencies.
```sh
pip install flask requests
```

Following is an example lambda handler.
```py
from flask import Flask, request, abort, make_response
import requests

app = Flask(__name__)
@app.route('/', methods=['POST'])
def get_webhook():
	if request.method == 'POST':

        "//third_party/absl:build_dll.patch",
        "//third_party/absl:endian.patch",
    ],
)

bazel_dep(name = "nlohmann_json", version = "3.12.0.bcr.1", repo_name = "nlohmann_json_lib")
bazel_dep(name = "abseil-py", version = "2.1.0", repo_name = "absl_py")
bazel_dep(name = "rules_python", version = "1.6.1")
bazel_dep(name = "rules_shell", version = "0.6.1")
bazel_dep(name = "bazel_skylib", version = "1.8.1")

#
# This file is autogenerated by pip-compile with Python 3.13
# by the following command:
#
#    bazel run //ci/official/requirements_updater:requirements.update
#
absl-py==2.3.0 \
    --hash=sha256:9824a48b654a306168f63e0d97714665f8490b8d89ec7bf2efc24bf67cf579b3 \
    --hash=sha256:d96fda5c884f1b22178852f30ffa85766d50b99e00775ea626c23304f582fc4f
    # via
    #   keras-nightly
    #   tb-nightly
astor==0.7.1 \

- name: fastapi-react
  html_url: https://github.com/Buuntu/fastapi-react
  stars: 2579
  owner_login: Buuntu
  owner_html_url: https://github.com/Buuntu
- name: supabase-py
  html_url: https://github.com/supabase/supabase-py
  stars: 2486
  owner_login: supabase
  owner_html_url: https://github.com/supabase
- name: RasaGPT
  html_url: https://github.com/paulpierre/RasaGPT
  stars: 2462

* Specific HTTP methods (`POST`, `PUT`) or all of them with the wildcard `"*"`.
* Specific HTTP headers or all of them with the wildcard `"*"`.

{* ../../docs_src/cors/tutorial001_py310.py hl[2,6:11,13:19] *}