{* ../../docs_src/body/tutorial004_py310.py hl[16] *}

函数参数按如下规则进行识别：

- **路径**中声明了相同参数的参数，是路径参数
- 类型是（`int`、`float`、`str`、`bool` 等）**单类型**的参数，是**查询**参数
- 类型是 **Pydantic 模型**的参数，是**请求体**

/// note | 笔记

因为默认值是 `None`， FastAPI 会把 `q` 当作可选参数。

FastAPI 不使用 `Optional[str]` 中的 `Optional`， 但 `Optional` 可以让编辑器提供更好的支持，并检测错误。

///

## 不使用 Pydantic

0.0.0.0/0 path: / hosts: - console.minio-example.local tls: [] # - secretName: chart-example-tls # hosts: # - chart-example.local ## Node labels for pod assignment ## Ref: https://kubernetes.io/docs/user-guide/node-selection/ ## nodeSelector: {} tolerations: [] affinity: {} ## Add stateful containers to have security context, if enabled MinIO will run as this ## user and group NOTE: securityContext is only enabled if persistence.enabled=true securityContext: enabled: true runAsUser: 1000 runAsGroup: 1000...

Some compiler optimizations that would be valid in single-threaded programs are not valid in all Go programs.
In particular, a compiler must not introduce writes that do not exist in the original program,
it must not allow a single read to observe multiple values,
and it must not allow a single write to write multiple values.
</p>

<p>
All the following examples assume that `*p` and `*q` refer to

/// note | Technische Details

Sie könnten auch `from starlette.middleware.cors import CORSMiddleware` verwenden.

このようなケースでは、レスポンスにデータを含める前に `jsonable_encoder` を使ってデータを変換できます。

{* ../../docs_src/response_directly/tutorial001.py hl[6:7,21:22] *}

/// note | 技術詳細

また、`from starlette.responses import JSONResponse` も利用できます。

**FastAPI** は開発者の利便性のために `fastapi.responses` という `starlette.responses` と同じものを提供しています。しかし、利用可能なレスポンスのほとんどはStarletteから直接提供されます。

///

チュートリアルのために、すべてのオプションの依存関係と機能をインストールしたいとき:

<div class="termy">

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

---> 100%
```

</div>

...これには、コードを実行するサーバーとして使用できる `uvicorn`も含まれます。

/// note | 備考

パーツ毎にインストールすることも可能です。

以下は、アプリケーションを本番環境にデプロイする際に行うであろうものです:

```
pip install fastapi
```

また、サーバーとして動作するように`uvicorn` をインストールします:

```
pip install "uvicorn[standard]"
```

0.0.0.0/0 path: / hosts: - console.minio-example.local tls: [] # - secretName: chart-example-tls # hosts: # - chart-example.local ## Node labels for pod assignment ## Ref: https://kubernetes.io/docs/user-guide/node-selection/ ## nodeSelector: {} tolerations: [] affinity: {} ## Add stateful containers to have security context, if enabled MinIO will run as this ## user and group NOTE: securityContext is only enabled if persistence.enabled=true securityContext: enabled: true runAsUser: 1000 runAsGroup: 1000...

0.0.0.0/0 path: / hosts: - console.minio-example.local tls: [] # - secretName: chart-example-tls # hosts: # - chart-example.local ## Node labels for pod assignment ## Ref: https://kubernetes.io/docs/user-guide/node-selection/ ## nodeSelector: {} tolerations: [] affinity: {} ## Add stateful containers to have security context, if enabled MinIO will run as this ## user and group NOTE: securityContext is only enabled if persistence.enabled=true securityContext: enabled: true runAsUser: 1000 runAsGroup: 1000...

0.0.0.0/0 path: / hosts: - console.minio-example.local tls: [] # - secretName: chart-example-tls # hosts: # - chart-example.local ## Node labels for pod assignment ## Ref: https://kubernetes.io/docs/user-guide/node-selection/ ## nodeSelector: {} tolerations: [] affinity: {} ## Add stateful containers to have security context, if enabled MinIO will run as this ## user and group NOTE: securityContext is only enabled if persistence.enabled=true securityContext: enabled: true runAsUser: 1000 runAsGroup: 1000...

        fun generateImportPackages(): List<String> {
            /*
             * The class that getResource called upon must be from within a jar that contains the import txt file.
             *
             * Note: Even though 'jump to declaration' in IJ will show this to be the 'DefaultImportsReader' from
             * the plugin Gradle distribution, this is only true at compile time.
             *