<img src="/img/tutorial/additional-responses/image01.png">

## Ön Tanımlı Response'ları Özel Olanlarla Birleştirme { #combine-predefined-responses-and-custom-ones }

Birçok *path operation* için geçerli olacak bazı ön tanımlı response'larınız olabilir; ancak bunları her *path operation*'ın ihtiyaç duyduğu özel response'larla birleştirmek isteyebilirsiniz.

Bu durumlarda, Python'daki bir `dict`'i `**dict_to_unpack` ile "unpacking" tekniğini kullanabilirsiniz:

    summary: str | None = None
    description: str | None = None
    get: Operation | None = None
    put: Operation | None = None
    post: Operation | None = None
    delete: Operation | None = None
    options: Operation | None = None
    head: Operation | None = None
    patch: Operation | None = None
    trace: Operation | None = None
    servers: list[Server] | None = None

 * of a server-side copy operation.
 *
 * @author mbechler
 *
 */
public class SrvCopyChunkCopyResponse implements Decodable {

    /**
     * Constructs a new SrvCopyChunkCopyResponse.
     * This response contains the results of a server-side copy operation.
     */
    public SrvCopyChunkCopyResponse() {
    }

    private int chunksWritten;

# Additional Status Codes { #additional-status-codes }

By default, **FastAPI** will return the responses using a `JSONResponse`, putting the content you return from your *path operation* inside of that `JSONResponse`.

It will use the default status code or the one you set in your *path operation*.

## Additional status codes { #additional-status-codes_1 }

「マウント」とは、特定のパスに完全に「独立した」アプリケーションを追加し、そのサブアプリケーションで宣言された path operation によって、そのパス以下のすべてを処理させることを意味します。

### トップレベルアプリケーション { #top-level-application }

まず、メインのトップレベル **FastAPI** アプリケーションと、その path operation を作成します:

{* ../../docs_src/sub_applications/tutorial001_py310.py hl[3, 6:8] *}

### サブアプリケーション { #sub-application }

次に、サブアプリケーションとその path operation を作成します。

このサブアプリケーションは通常の FastAPI アプリケーションですが、これを「マウント」します:

	if r.Header.Get(xMinIOExtract) == "true" && strings.Contains(prefix, archivePattern) {
		// Initiate a list objects operation inside a zip file based in the input params
		listObjectsV2Info, err = listObjectsV2InArchive(ctx, objectAPI, bucket, prefix, token, delimiter, maxKeys, startAfter, r.Header)
	} else {
		// Initiate a list objects operation based on the input params.
		// On success would return back ListObjectsInfo object to be

Puedes configurar el parámetro del decorador de path operation `response_model_exclude_unset=True`:

{* ../../docs_src/response_model/tutorial004_py310.py hl[22] *}

y esos valores por defecto no serán incluidos en el response, solo los valores realmente establecidos.

Entonces, si envías un request a esa *path operation* para el ítem con ID `foo`, el response (no incluyendo valores por defecto) será:

        } else if (isRetryable()) {
            log.warn("Retryable SMB error: {} in operation '{}' (attempt {}/{})", getMessage(), operationName, attemptNumber,
                    retryPolicy.getMaxAttempts());
        } else {
            log.error("Non-retryable SMB error: {} in operation '{}'", getMessage(), operationName);
        }
    }

    /**
     * Check if this exception is retryable

    end
    dep ->> operation: Executar dependência, e.g. sessão de BD
    opt raise
        operation -->> dep: Lançar exceção (e.g. HTTPException)
        opt handle
            dep -->> dep: Pode capturar exceções, lançar uma nova HTTPException, lançar outras exceções
        end
        handler -->> client: resposta de erro HTTP
    end

    operation ->> client: Retornar resposta ao cliente

# Ek Status Code'ları { #additional-status-codes }

Varsayılan olarak **FastAPI**, response'ları bir `JSONResponse` kullanarak döndürür; *path operation*'ınızdan döndürdüğünüz içeriği bu `JSONResponse`'un içine yerleştirir.

Varsayılan status code'u veya *path operation* içinde sizin belirlediğiniz status code'u kullanır.

## Ek status code'ları { #additional-status-codes_1 }