ioe2.printStackTrace(log);
            }
            throw ioe;
        }
    }

    @Override
    protected void doRecv(final Response response) throws IOException {
        final ServerMessageBlock resp = (ServerMessageBlock) response;
        resp.useUnicode = useUnicode;
        resp.extendedSecurity = (capabilities & CAP_EXTENDED_SECURITY) == CAP_EXTENDED_SECURITY;

        synchronized (BUF) {

### Add some custom `tags`, `responses`, and `dependencies` { #add-some-custom-tags-responses-and-dependencies }

We are not adding the prefix `/items` nor the `tags=["items"]` to each *path operation* because we added them to the `APIRouter`.

But we can still add _more_ `tags` that will be applied to a specific *path operation*, and also some extra `responses` specific to that *path operation*:

		if rec.Code != testCase.expectedRespStatus {
			t.Errorf("Test %d: %s: Expected the response status to be `%d`, but instead found `%d`", i+1, instanceType, testCase.expectedRespStatus, rec.Code)
		}

		// Verify response the V2 signed HTTP request.
		// initialize HTTP NewRecorder, this records any mutations to response writer inside the handler.
		recV2 := httptest.NewRecorder()

```JSON
{"message": "Oops! yolo did something. There goes a rainbow..."}
```

/// note | 技術細節

你也可以使用 `from starlette.requests import Request` 與 `from starlette.responses import JSONResponse`。

**FastAPI** 以便利性為由，提供和 `starlette.responses` 相同的介面於 `fastapi.responses`。但大多數可用的回應類型其實直接來自 Starlette。`Request` 也一樣。

///

## 覆寫預設例外處理器 { #override-the-default-exception-handlers }

**FastAPI** 內建了一些預設例外處理器。

    operationId: str | None = None
    parameters: list[Parameter | Reference] | None = None
    requestBody: RequestBody | Reference | None = None
    # Using Any for Specification Extensions
    responses: dict[str, Response | Any] | None = None
    callbacks: dict[str, dict[str, "PathItem"] | Reference] | None = None
    deprecated: bool | None = None
    security: list[dict[str, list[str]]] | None = None

        // ## Act ##
        try (CurlResponse response = req.execute()) {
            // ## Assert ##
            assertEquals(200, response.getHttpStatusCode());
            assertNotNull(response.getContentAsString());
        }
    }

    // --- GZIP response tests ---

    /**
     * Helper to GZIP-compress a string.
     */

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

### Revisa los responses { #check-the-responses }

Ahora, si vas a la URL con el puerto para Uvicorn: [http://127.0.0.1:8000/app](http://127.0.0.1:8000/app), verás el response normal:

```JSON
{
    "message": "Hello World",
    "root_path": "/api/v1"
}
```

/// tip | Consejo

import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
import java.util.Map;

/**
 * A response list that extends List functionality and includes pagination and search metadata.
 * This class wraps search results with pagination information, facet responses, and query statistics.
 * It implements the List interface to provide standard list operations while adding search-specific

	err := req.DecodeMsg(mr)
	if err != nil {
		rw.CloseWithError(err)
		return
	}

	mw := msgp.NewWriter(rw)
	responses := make(chan ReadMultipleResp, len(req.Files))
	var wg sync.WaitGroup
	wg.Add(1)
	go func() {
		defer wg.Done()
		for resp := range responses {
			err := resp.EncodeMsg(mw)
			if err != nil {
				rw.CloseWithError(err)
				return
			}
			mw.Flush()
		}

### Özel `tags`, `responses` ve `dependencies` Ekleyin { #add-some-custom-tags-responses-and-dependencies }

`/items` prefix’ini ya da `tags=["items"]` değerini her *path operation*’a tek tek eklemiyoruz; çünkü bunları `APIRouter`’a ekledik.

Ama yine de belirli bir *path operation*’a uygulanacak _ek_ `tags` tanımlayabilir, ayrıca o *path operation*’a özel `responses` ekleyebiliriz: