```Python hl_lines="46"
{!../../../docs_src/nosql_databases/tutorial001.py!}
```

### Create the *path operation function*

As our code is calling Couchbase and we are not using the <a href="https://docs.couchbase.com/python-sdk/2.5/async-programming.html#asyncio-python-3-5" class="external-link" target="_blank">experimental Python <code>await</code> support</a>, we should declare our function with normal `def` instead of `async def`.

If you are building a **frontend**, a very interesting alternative is <a href="https://github.com/hey-api/openapi-ts" class="external-link" target="_blank">openapi-ts</a>.

## Client and SDK Generators - Sponsor

There are also some **company-backed** Client and SDK generators based on OpenAPI (FastAPI), in some cases they can offer you **additional features** on top of high-quality generated SDKs/clients.

### ✍ `FastAPI` 📱

```Python hl_lines="46"
{!../../../docs_src/nosql_databases/tutorial001.py!}
```

### ✍ *➡ 🛠️ 🔢*

👆 📟 🤙 🗄 &amp; 👥 🚫 ⚙️ <a href="https://docs.couchbase.com/python-sdk/2.5/async-programming.html#asyncio-python-3-5" class="external-link" target="_blank">🥼 🐍 <code>await</code> 🐕‍🦺</a>, 👥 🔜 📣 👆 🔢 ⏮️ 😐 `def` ↩️ `async def`.

### `FastAPI` app の作成

```Python hl_lines="46"
{!../../../docs_src/nosql_databases/tutorial001.py!}
```

### *path operation関数*の作成

私たちのコードはCouchbaseを呼び出しており、<a href="https://docs.couchbase.com/python-sdk/2.5/async-programming.html#asyncio-python-3-5" class="external-link" target="_blank">実験的なPython <code>await</code></a>を使用していないので、私たちは`async def`ではなく通常の`def`で関数を宣言する必要があります。

Wenn Sie ein **Frontend** erstellen, ist <a href="https://github.com/hey-api/openapi-ts" class="external-link" target="_blank">openapi-ts</a> eine sehr interessante Alternative.

## Client- und SDK-Generatoren – Sponsor

Es gibt auch einige **vom Unternehmen entwickelte** Client- und SDK-Generatoren, die auf OpenAPI (FastAPI) basieren. In einigen Fällen können diese Ihnen **weitere Funktionalität** zusätzlich zu qualitativ hochwertigen generierten SDKs/Clients bieten.