特別是，這可能是替代中介軟體（middleware）中實作邏輯的一個好方法。

例如，如果你想在應用程式處理之前讀取或操作請求本文（request body）。

/// danger

這是進階功能。

如果你剛開始使用 **FastAPI**，可以先跳過本節。

///

## 使用情境 { #use-cases }

可能的使用情境包括：

* 將非 JSON 的請求本文轉換為 JSON（例如 [`msgpack`](https://msgpack.org/index.html)）。
* 解壓縮以 gzip 壓縮的請求本文。
* 自動記錄所有請求本文。

## 處理自訂請求本文編碼 { #handling-custom-request-body-encodings }

讓我們看看如何使用自訂的 `Request` 子類別來解壓縮 gzip 請求。

    @TaskAction
    void clean() {
        def jsonFileManager = new AcceptedApiChangesJsonFileManager()
        jsonFileDirectory.asFile.get().listFiles()
            ?.findAll { it.name.endsWith(".json") }
            ?.each { jsonFileManager.emptyAcceptedApiChanges(it) }
    }

    client = TestClient(app)
    with path.open("rb") as file:
        response = client.post("/uploadfile/", files={"file": file})
    assert response.status_code == 200, response.text
    assert response.json() == {"filename": "test.txt"}

    assert testing_file_store
    assert testing_file_store[0].file.closed


# For UploadFile coverage, segments copied from Starlette tests


@pytest.mark.anyio

    server.enqueue(
      MockResponse(
        code = 401,
        body = "{\"error\":{\"message\":\"No auth credentials found\",\"code\":401}}",
        headers = Headers.headersOf("content-type", "application/json"),
      ),
    )
    server.enqueue(
      MockResponse(
        body =
          """
          |data: hey
          |
          |
          """.trimMargin(),

Si vous ouvrez dans votre navigateur une URL comme :

```
http://127.0.0.1:8000/items/foo-item
```

... sans ajouter le paramètre requis `needy`, vous verrez une erreur comme :

```JSON
{
  "detail": [
    {
      "type": "missing",
      "loc": [
        "query",
        "needy"
      ],
      "msg": "Field required",
      "input": null
    }
  ]
}
```

	// Colorize the message and print.
	logger.Startup(color.Blue("API: ") + color.Bold(fmt.Sprintf("%s ", apiEndpointStr)))
	if color.IsTerminal() && (!globalServerCtxt.Anonymous && !globalServerCtxt.JSON && globalAPIConfig.permitRootAccess()) {
		logger.Startup(color.Blue("   RootUser: ") + color.Bold("%s ", cred.AccessKey))
		logger.Startup(color.Blue("   RootPass: ") + color.Bold("%s \n", cred.SecretKey))
		if region != "" {

import java.util.Map;

import org.codelibs.fess.it.CrudTestBase;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.Tag;
import org.junit.jupiter.api.Test;

import io.restassured.path.json.JsonPath;

@Tag("it")
public class GeneralTests extends CrudTestBase {

    private static final String NAME_PREFIX = "generalTest_";
    private static final String API_PATH = "/api/admin/general";

When you return a `Response` directly, like in the example above, it will be returned directly.

It won't be serialized with a model, etc.

Make sure it has the data you want it to have, and that the values are valid JSON (if you are using `JSONResponse`).

///

/// note | Technical Details

You could also use `from starlette.responses import JSONResponse`.

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- 🔒 Hash seguro de senhas por padrão.
- 🔑 Autenticação JWT (JSON Web Token).
- 📫 Recuperação de senhas baseada em email.
- ✅ Testes com [Pytest](https://pytest.org).
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* a documentação automática

* Ciência de Dados
* Deep Learning
* Aprendizado de Máquina
* Injeção de Dependências
* autenticação HTTP Basic
* HTTP Digest
* formato ISO
* o padrão JSON Schema
* o JSON schema
* a definição do schema
* Fluxo de Senha
* Mobile

* descontinuado
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