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

모든 메시지는 동일한 WebSocket 연결을 사용합니다.

## `Depends` 및 기타 사용하기

WebSocket 엔드포인트에서 `fastapi`에서 다음을 가져와 사용할 수 있습니다:

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

이들은 다른 FastAPI 엔드포인트/*경로 작동*과 동일하게 동작합니다:

{* ../../docs_src/websockets/tutorial002_an_py310.py hl[68:69,82] *}

/// info | 정보

    }

    /**
     * Helper method to create a factory with specific settings
     */
    private <U> CrawlerPooledObjectFactory<U> createFactory(String componentName) {
        CrawlerPooledObjectFactory<U> f = new CrawlerPooledObjectFactory<>();
        f.setCrawlerContainer(container);
        f.setComponentName(componentName);
        return f;
    }

    /**
     * Helper method to create a factory with listener

import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.timer.TimeoutTask;
import org.codelibs.fess.Constants;
import org.codelibs.fess.exception.JobProcessingException;
import org.codelibs.fess.helper.ProcessHelper;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.InputStreamThread;
import org.codelibs.fess.util.JobProcess;

        }
    }

    // ===================================================================================
    //                                                                      General Helper
    //                                                                      ==============
    protected void assertObjectNotNull(String variableName, Object value) {
        if (variableName == null) {

It has a `GET` operation that could return an error.

It has a `POST` operation that could return several errors.

Both *path operations* require an `X-Token` header.

{* ../../docs_src/app_testing/app_b_an_py310/main.py *}

### Extended testing file { #extended-testing-file }

You could then update `test_main.py` with the extended tests:

		debugGoCollectorPath: collectors.NewGoCollector(),
	}

	// Add all `MetricGroup` collectors to the map.
	for _, mg := range allMetricGroups {
		collectors[mg.CollectorPath] = mg
	}

	// Helper function to register a collector and return a gatherer for it.
	mustRegister := func(c ...prometheus.Collector) prometheus.Gatherer {
		subRegistry := prometheus.NewRegistry()
		for _, col := range c {

        }
      }
      mappings.put(var, arg);
    }
  }

  // This is needed when resolving types against a context with wildcards
  // For example:
  // class Holder<T> {
  //   void set(T data) {...}
  // }
  // Holder<List<?>> should *not* resolve the set() method to set(List<?> data).
  // Instead, it should create a capture of the wildcard so that set() rejects any List<T>.

        CrawlingParameterUtil.setCrawlerContext(null);
        CrawlingParameterUtil.setUrlQueueService(null);
        CrawlingParameterUtil.setDataService(null);
        super.tearDown();
    }

    // Helper method to create a simple mock UrlQueue
    private UrlQueue<?> createMockUrlQueue(final String sessionId, final String url) {
        return new UrlQueue<Object>() {
            @Override
            public Object getId() {

    static final int IN = 0x0001;
    static final int A = 0x0001;
    static final int NS = 0x0002;
    static final int NULL = 0x000a;

    static final int HEADER_LENGTH = 12;

    // header field offsets
    static final int OPCODE_OFFSET = 2;
    static final int QUESTION_OFFSET = 4;
    static final int ANSWER_OFFSET = 6;
    static final int AUTHORITY_OFFSET = 8;
    static final int ADDITIONAL_OFFSET = 10;

    static final int IN = 0x0001;
    static final int A = 0x0001;
    static final int NS = 0x0002;
    static final int NULL = 0x000a;

    static final int HEADER_LENGTH = 12;

    // header field offsets
    static final int OPCODE_OFFSET = 2;
    static final int QUESTION_OFFSET = 4;
    static final int ANSWER_OFFSET = 6;
    static final int AUTHORITY_OFFSET = 8;
    static final int ADDITIONAL_OFFSET = 10;