<img src="/img/tutorial/websockets/image04.png">

所有这些消息都将使用同一个 WebSocket 连

接。

## 使用 `Depends` 和其他依赖项

在 WebSocket 端点中，您可以从 `fastapi` 导入并使用以下内容：

* `Depends`
* `Security`
* `Cookie`
* `Header`
* `Path`
* `Query`

它们的工作方式与其他 FastAPI 端点/ *路径操作* 相同：

//// tab | Python 3.10+

```Python hl_lines="68-69  82"
{!> ../../docs_src/websockets/tutorial002_an_py310.py!}
```

////

func (config *TierConfigMgr) Bytes() ([]byte, error) {
	config.RLock()
	defer config.RUnlock()
	data := make([]byte, 4, config.Msgsize()+4)

	// Initialize the header.
	binary.LittleEndian.PutUint16(data[0:2], tierConfigFormat)
	binary.LittleEndian.PutUint16(data[2:4], tierConfigVersion)

	// Marshal the tier config
	return config.MarshalMsg(data)
}

			}
		}
	}
}

var replicationStateTest = []struct {
	name      string
	rs        ReplicationState
	arn       string
	expStatus replication.StatusType
}{
	{ // 1. no replication status header
		name:      "no replicated targets",
		rs:        ReplicationState{},
		expStatus: replication.StatusType(""),
	},
	{ // 2. replication status for one target
		name:      "replication status for one target",

		return
	}

	tiers := globalTierConfigMgr.ListTiers()
	data, err := json.Marshal(tiers)
	if err != nil {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}

	w.Header().Set(tierCfgRefreshAtHdr, globalTierConfigMgr.refreshedAt().String())
	writeSuccessResponseJSON(w, data)
}

func (api adminAPIHandlers) EditTierHandler(w http.ResponseWriter, r *http.Request) {
	ctx := r.Context()

And all of them will use the same WebSocket connection.

## Using `Depends` and others

In WebSocket endpoints you can import from `fastapi` and use:

* `Depends`
* `Security`
* `Cookie`
* `Header`
* `Path`
* `Query`

They work the same way as for other FastAPI endpoints/*path operations*:

//// tab | Python 3.10+

```Python hl_lines="68-69  82"

        // logger.debug(response.asString());
        return response;
    }

    protected Response checkDeleteMethod(final String path) {
        return given().contentType("application/json").header("Authorization", getTestToken()).delete(getApiPath() + "/" + path);
    }

    protected List<Map<String, Object>> getItemList(final Map<String, Object> body) {

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"fmt"
	"time"

	"github.com/tinylib/msgp/msgp"
)

// unmarshalV unmarshals with a specific header version.
func (x *xlMetaV2VersionHeader) unmarshalV(v uint8, bts []byte) (o []byte, err error) {
	switch v {
	case 1:
		return x.unmarshalV1(bts)
	case 2:
		x2 := xlMetaV2VersionHeaderV2{xlMetaV2VersionHeader: x}

// SelfSubjectReview contains the user information that the kube-apiserver has about the user making this request.
// When using impersonation, users will receive the user info of the user being impersonated.  If impersonation or
// request header authentication is used, any extra keys will have their case ignored and returned as lowercase.
message SelfSubjectReview {
  // Standard object's metadata.

        });
        return response;
    }

    protected void writeNoCache(final StreamResponse response, final ResponseData responseData) {
        response.header("Pragma", "no-cache");
        response.header("Cache-Control", "no-cache");
        response.header("Expires", "Thu, 01 Dec 1994 16:00:00 GMT");
    }

    protected void writeFileName(final StreamResponse response, final ResponseData responseData) {

  // For example: the master will return an internal IP CIDR only, if the client reaches the server using an internal IP.
  // Server looks at X-Forwarded-For header or X-Real-Ip header or request.RemoteAddr (in that order) to get the client IP.
  // +optional
  repeated ServerAddressByClientCIDR serverAddressByClientCIDRs = 4;
}