`Field`、`Query`、`Body` 等对象里可以声明更多信息，并且 JSON Schema 中也会集成这些信息。

*声明示例*一章中将详细介绍添加更多信息的知识。

/// warning | 警告

传递给 `Field` 的额外键也会出现在你的应用生成的 OpenAPI 架构中。
由于这些键不一定属于 OpenAPI 规范的一部分，某些 OpenAPI 工具（例如 [OpenAPI 验证器](https://validator.swagger.io/)）可能无法处理你生成的架构。

///

## 小结 { #recap }

Pydantic 的 `Field` 可以为模型属性声明更多校验和元数据。

    assert response.json() == {"username": "secret"}


def test_security_api_key_no_key():
    response = client.get("/users/me")
    assert response.status_code == 401, response.text
    assert response.json() == {"detail": "Not authenticated"}
    assert response.headers["WWW-Authenticate"] == "APIKey"


def test_openapi_schema():
    response = client.get("/openapi.json")

 - [Git](https://github.com/codelibs/fess-ds-git)
 - [Gitbucket](https://github.com/codelibs/fess-ds-gitbucket)
 - [G Suite](https://github.com/codelibs/fess-ds-gsuite)
 - [JSON](https://github.com/codelibs/fess-ds-json)
 - [Office 365](https://github.com/codelibs/fess-ds-office365)
 - [S3](https://github.com/codelibs/fess-ds-s3)
 - [Salesforce](https://github.com/codelibs/fess-ds-salesforce)

        }
    }

    /**
     * Escapes a JSON key-value pair.
     * @param key The key.
     * @param value The value.
     * @return The escaped key-value pair.
     */
    protected String escapeJsonKeyValue(final String key, final String value) {
        return "\"" + key + "\":" + escapeJson(value);
    }

    /**
     * Writes a JSON response.
     * @param status The status code.

import json
from typing import Annotated, Any

from annotated_doc import Doc
from fastapi.encoders import jsonable_encoder
from starlette.responses import HTMLResponse


def _html_safe_json(value: Any) -> str:
    """Serialize a value to JSON with HTML special characters escaped.

    This prevents injection when the JSON is embedded inside a <script> tag.
    """
    return (
        json.dumps(value)
        .replace("<", "\\u003c")

You can use the Select API to query objects with following features:

- Objects must be in CSV, JSON, or Parquet(*) format.
- UTF-8 is the only encoding type the Select API supports.

Using the above `id_token` we can perform an STS request to MinIO to get temporary credentials for MinIO API operations. MinIO STS API uses [JSON Web Key Set Endpoint](https://docs.wso2.com/display/IS541/JSON+Web+Key+Set+Endpoint) to validate if JWT is valid and is properly signed.

import org.gradle.api.tasks.Input;

/**
 * A single instruction to transforms a REST test.
 */
public interface RestTestTransform<T extends JsonNode> extends Named {

    /**
     * Transform the Json structure per the given {@link RestTestTransform}
     * Implementations are expected to mutate the parent to satisfy the transformation.
     *
     * @param parent The parent of the node to transform.
     */

    assert response.headers["WWW-Authenticate"] == 'Basic realm="simple"'
    assert response.json() == {"detail": "Not authenticated"}


def test_openapi_schema():
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == snapshot(
        {
            "openapi": "3.1.0",
            "info": {"title": "FastAPI", "version": "0.1.0"},

	if rec.Code != http.StatusOK {
		t.Errorf("Expected to succeed but failed with %d", rec.Code)
	}

	results := madmin.InfoMessage{}
	err = json.NewDecoder(rec.Body).Decode(&results)
	if err != nil {
		t.Fatalf("Failed to decode set config result json %v", err)
	}

	if results.Region != globalMinioDefaultRegion {
		t.Errorf("Expected %s, got %s", globalMinioDefaultRegion, results.Region)
	}
}