Da das Programm unter `/code` gestartet wird und sich darin das Verzeichnis `./app` mit Ihrem Code befindet, kann **Uvicorn** `app` sehen und aus `app.main` **importieren**.

/// tip | "Tipp"

Lernen Sie, was jede Zeile bewirkt, indem Sie auf die Zahlenblasen im Code klicken. 👆

///

### `RequestValidationError` vs `ValidationError`

/// warning | "警告"

如果您觉得现在还用不到以下技术细节，可以先跳过下面的内容。

///

`RequestValidationError` 是 Pydantic 的 <a href="https://docs.pydantic.dev/latest/concepts/models/#error-handling" class="external-link" target="_blank">`ValidationError`</a> 的子类。

**FastAPI** 调用的就是 `RequestValidationError` 类，因此，如果在 `response_model` 中使用 Pydantic 模型，且数据有错误时，在日志中就会看到这个错误。

    }

    /**
     * Asserts:
     * <p/>
     * <ul>
     * <li><code>string != null</code>
     * <li><code>string.length > 0</code>
     * </ul>
     */
    @SuppressWarnings("checkstyle:parameternumber")
    private boolean validateStringNotEmpty(
            String prefix,
            String prefix2,

    author: Union[Author, None] = None


class Replies(BaseModel):
    nodes: List[CommentsNode]


class DiscussionsCommentsNode(CommentsNode):
    replies: Replies


class Comments(BaseModel):
    nodes: List[CommentsNode]


class DiscussionsComments(BaseModel):
    nodes: List[DiscussionsCommentsNode]


class DiscussionsNode(BaseModel):
    number: int

    full_name = user_dict["full_name"],
    disabled = user_dict["disabled"],
    hashed_password = user_dict["hashed_password"],
)
```

/// info | "说明"

`user_dict` 的说明，详见[**更多模型**一章](../extra-models.md#user_indict){.internal-link target=_blank}。

///

## 返回 Token

`token` 端点的响应必须是 JSON 对象。

响应返回的内容应该包含 `token_type`。本例中用的是**Bearer**Token，因此， Token 类型应为**`bearer`**。

Und wenn es irgendeinen anderen Stil- oder Konsistenz-Bedarf gibt, bitte ich direkt darum oder füge zusätzliche Commits mit den erforderlichen Änderungen hinzu.

### Den Code überprüfen

* Prüfen und lesen Sie den Code, fragen Sie sich, ob er Sinn macht, **führen Sie ihn lokal aus** und testen Sie, ob er das Problem tatsächlich löst.

inside and make sure it is serializable as JSON, using the same [JSON Compatible Encoder](../tutorial/encoder.md){.internal-link target=_blank} explained in the tutorial. This is what allows you to return **arbitrary objects**, for example database models.

But if you are certain that the content that you are returning is **serializable with JSON**, you can pass it directly to the response class and avoid the extra overhead that FastAPI would have by passing your return content through the...

	"github.com/minio/minio/internal/hash/sha256"
	xhttp "github.com/minio/minio/internal/http"
	"github.com/minio/pkg/v3/sync/errgroup"
)

// Object was stored with additional erasure codes due to degraded system at upload time
const minIOErasureUpgraded = "x-minio-internal-erasure-upgraded"

const erasureAlgorithm = "rs-vandermonde"

// GetChecksumInfo - get checksum of a part.

 * utilities.
 *
 * <p>Covers arrays, enums and common types defined in {@code java.lang}, {@code java.lang.reflect},
 * {@code java.io}, {@code java.nio}, {@code java.math}, {@code java.util}, {@code
 * java.util.concurrent}, {@code java.util.regex}, {@code com.google.common.base}, {@code
 * com.google.common.collect} and {@code com.google.common.primitives}. In addition, if the type

- github.com/coreos/go-oidc: [v2.1.0+incompatible → v2.2.1+incompatible](https://github.com/coreos/go-oidc/compare/v2.1.0...v2.2.1)
- github.com/coreos/go-semver: [v0.3.0 → v0.3.1](https://github.com/coreos/go-semver/compare/v0.3.0...v0.3.1)
- github.com/coreos/go-systemd/v22: [v22.4.0 → v22.5.0](https://github.com/coreos/go-systemd/v22/compare/v22.4.0...v22.5.0)