# WSGI inkludieren – Flask, Django und andere

Sie können WSGI-Anwendungen mounten, wie Sie es in [Unteranwendungen – Mounts](sub-applications.md){.internal-link target=_blank}, [Hinter einem Proxy](behind-a-proxy.md){.internal-link target=_blank} gesehen haben.

Dazu können Sie die `WSGIMiddleware` verwenden und damit Ihre WSGI-Anwendung wrappen, zum Beispiel Flask, Django usw.

## `WSGIMiddleware` verwenden

Sie müssen `WSGIMiddleware` importieren.

!!! check "Inspirierte **FastAPI**"
    Eine automatische API-Dokumentationsoberfläche zu haben.

### <a href="https://flask.palletsprojects.com" class="external-link" target="_blank">Flask</a>

Flask ist ein „Mikroframework“, es enthält weder Datenbankintegration noch viele der Dinge, die standardmäßig in Django enthalten sind.

from fastapi import FastAPI
from fastapi.middleware.wsgi import WSGIMiddleware
from flask import Flask, request
from markupsafe import escape

flask_app = Flask(__name__)


@flask_app.route("/")
def flask_main():
    name = request.args.get("name", "World")
    return f"Hello, {escape(name)} from Flask!"


app = FastAPI()


@app.get("/v2")
def read_main():
    return {"message": "Hello World"}

You can mount WSGI applications as you saw with [Sub Applications - Mounts](sub-applications.md){.internal-link target=_blank}, [Behind a Proxy](behind-a-proxy.md){.internal-link target=_blank}.

For that, you can use the `WSGIMiddleware` and use it to wrap your WSGI application, for example, Flask, Django, etc.

## Using `WSGIMiddleware`

You need to import `WSGIMiddleware`.

* <a href="https://github.com/tiangolo/full-stack-flask-couchbase" class="external-link" target="_blank">https://github.com/tiangolo/full-stack-flask-couchbase</a>
* <a href="https://github.com/tiangolo/full-stack-flask-couchdb" class="external-link" target="_blank">https://github.com/tiangolo/full-stack-flask-couchdb</a>

Це вирішило необхідність писати YAML (інший синтаксис) всередині рядків документів Python.

Ця комбінація Flask, Flask-apispec із Marshmallow і Webargs була моїм улюбленим бекенд-стеком до створення **FastAPI**.

!!! check "A inspiré **FastAPI** à"
Avoir une interface de documentation automatique de l'API.

### <a href="https://flask.palletsprojects.com" class="external-link" target="_blank">Flask</a>

Flask est un "micro-framework", il ne comprend pas d'intégrations de bases de données ni beaucoup de choses qui sont fournies par défaut dans Django.

!!! check "**FastAPI**'a nasıl ilham verdi?"
    API'lar için açık standart desteği olmalı (OpenAPI gibi).

### <a href="https://flask-apispec.readthedocs.io/en/latest/" class="external-link" target="_blank">Flask-apispec</a>

Flask-apispec ise Webargs, Marshmallow ve APISpec'i birbirine bağlayan bir Flask <abbr title="Eklenti: Plug-In">eklentisi</abbr>.

Isso resolveu o problema de ter que escrever YAML (outra sintaxe) dentro das _docstrings_ Python.

Essa combinação de Flask, Flask-apispec com Marshmallow e Webargs foi meu _backend stack_ favorito até construir **FastAPI**.

# 包含 WSGI - Flask，Django，其它

您可以挂载多个 WSGI 应用，正如您在 [Sub Applications - Mounts](sub-applications.md){.internal-link target=_blank}, [Behind a Proxy](behind-a-proxy.md){.internal-link target=_blank} 中所看到的那样。

为此, 您可以使用 `WSGIMiddleware` 来包装你的 WSGI 应用，如：Flask，Django，等等。

## 使用 `WSGIMiddleware`

您需要导入 `WSGIMiddleware`。

然后使用该中间件包装 WSGI 应用（例如 Flask）。

之后将其挂载到某一个路径下。

```Python hl_lines="2-3  22"
{!../../../docs_src/wsgi/tutorial001.py!}
```