Por padrão, o **FastAPI** irá converter automaticamente o valor do retorno para JSON utilizando o `jsonable_encoder` explicado em [JSON Compatible Encoder](../tutorial/encoder.md){.internal-link target=_blank}.

Então, por baixo dos panos, ele incluiria esses dados compatíveis com JSON (e.g. um `dict`) dentro de uma `JSONResponse` que é utilizada para enviar uma resposta para o cliente.

    assert response.status_code == 200, response.text
    assert response.json() == {"username": "Bearer footokenbar"}


def test_security_oauth2_password_other_header():
    response = client.get("/users/me", headers={"Authorization": "Other footokenbar"})
    assert response.status_code == 200, response.text
    assert response.json() == {"username": "Other footokenbar"}

    assert response.status_code == 200, response.text
    assert response.json() == {"username": "Bearer footokenbar"}


def test_security_oauth2_password_other_header():
    response = client.get("/users/me", headers={"Authorization": "Other footokenbar"})
    assert response.status_code == 200, response.text
    assert response.json() == {"username": "Other footokenbar"}

## Convertir cualquier Dato a Compatible con JSON { #convert-any-data-to-json-compatible }

Para convertir cualquier dato a compatible con JSON, lee la documentación para [Tutorial - Codificador Compatible con JSON](../tutorial/encoder.md){.internal-link target=_blank}.

## Metadatos OpenAPI - Documentación { #openapi-metadata-docs }

import (
	"bytes"
	"context"
	"crypto/tls"
	"encoding/json"
	"flag"
	"fmt"
	"log"
	"net/http"
	"net/url"
	"strings"

	minio "github.com/minio/minio-go/v7"
	"github.com/minio/minio-go/v7/pkg/credentials"
)

// JWTToken - parses the output from IDP id_token.
type JWTToken struct {
	AccessToken string `json:"access_token"`
	Expiry      int    `json:"expires_in"`
}

var (
	stsEndpoint  string

* Автоматическая документация моделей данных с помощью <a href="https://json-schema.org/" class="external-link" target="_blank"><strong>JSON Schema</strong></a> (так как сама спецификация OpenAPI основана на JSON Schema).
* Разработан вокруг этих стандартов, после тщательного их изучения. Это не дополнительная надстройка поверх.

	Enable     bool            `json:"enable"`
	Format     string          `json:"format"`
	URL        xnet.URL        `json:"url"`
	Index      string          `json:"index"`
	QueueDir   string          `json:"queueDir"`
	QueueLimit uint64          `json:"queueLimit"`
	Transport  *http.Transport `json:"-"`
	Username   string          `json:"username"`
	Password   string          `json:"password"`
}

        final ExtractData extractData = jsonExtractor.getText(in, null);
        CloseableUtil.closeQuietly(in);

        final String content = extractData.getContent();

        // Verify nested content extraction
        assertTrue(content.contains("content.summary"));
        assertTrue(content.contains("This is a sample JSON document for testing"));
    }

type batchJobInfo struct {
	mu sync.RWMutex `json:"-" msg:"-"`

	Version       int       `json:"-" msg:"v"`
	JobID         string    `json:"jobID" msg:"jid"`
	JobType       string    `json:"jobType" msg:"jt"`
	StartTime     time.Time `json:"startTime" msg:"st"`
	LastUpdate    time.Time `json:"lastUpdate" msg:"lu"`
	RetryAttempts int       `json:"retryAttempts" msg:"ra"`
	Attempts      int       `json:"attempts" msg:"at"`

```JSON
{
  "item": "The Foo Wrestlers"
}
```

しかし、クライアントが`http://example.com/items/bar`（存在しない`item_id` `"bar"`）をリクエストした場合、HTTPステータスコード404（"not found"エラー）と以下のJSONレスポンスが返されます:

```JSON
{
  "detail": "Item not found"
}
```

/// tip | 豆知識

`HTTPException`を発生させる際には、`str`だけでなく、JSONに変換できる任意の値を`detail`パラメータとして渡すことができます。