# Dependências com yield

O FastAPI possui suporte para dependências que realizam <abbr title='também chamados de "código de saída", "código de cleanup", "código de teardown", "código de finalização", "código de saída para gerenciador de contextos", etc.'>alguns passos extras ao finalizar</abbr>.

Para fazer isso, utilize `yield` em vez de `return`, e escreva os passos extras (código) depois.

/// tip | Dica

Garanta que `yield` é utilizado apenas uma vez.

        // Write completely empty file
        try (java.io.FileWriter fw = new java.io.FileWriter(testFile)) {
            // Write nothing
        }

        // Create a new CharMappingFile instance to ensure clean state
        CharMappingFile emptyMappingFile = new CharMappingFile("empty_test", testFile.getAbsolutePath(), new Date());
        emptyMappingFile.manager(dictionaryManager);

            sendBuffer.getBuffer().put(testData);
            sendBuffer.getBuffer().flip();
            assertEquals(testData.length, sendBuffer.getBuffer().remaining(), "Buffer should contain test data");

            // Clean up
            bufferManager.releaseSendRegion(sendBuffer);
            bufferManager.releaseReceiveRegion(recvBuffer);

            System.out.println("RDMA data transfer components test completed");
        }
    }

Here, if you request `/unicorns/yolo`, the *path operation* will `raise` a `UnicornException`.

But it will be handled by the `unicorn_exception_handler`.

So, you will receive a clean error, with an HTTP status code of `418` and a JSON content of:

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

/// note | Technical Details

            // Skipping assertions that assume non-critical errors don't affect circuit state
            // as the actual implementation may handle this differently

            // Reset to ensure clean state for critical error test
            if (customCb.getState() != State.CLOSED) {
                customCb.reset();
            }

            // Critical failures - should open circuit after threshold

* fix: detach azure disk issue using dangling error ([#81266](https://github.com/kubernetes/kubernetes/pull/81266), [@andyzhangx](https://github.com/andyzhangx))
* Fix a bug in the IPVS proxier where virtual servers are not cleaned up even though the corresponding Service object was deleted. ([#80942](https://github.com/kubernetes/kubernetes/pull/80942), [@gongguan](https://github.com/gongguan))

}

func (er erasureObjects) getOnlineDisksWithHealing(inclHealing bool) ([]StorageAPI, bool) {
	newDisks, _, healing := er.getOnlineDisksWithHealingAndInfo(inclHealing)
	return newDisks, healing > 0
}

// Clean-up previously deleted objects. from .minio.sys/tmp/.trash/
func (er erasureObjects) cleanupDeletedObjects(ctx context.Context) {
	var wg sync.WaitGroup
	for _, disk := range er.getLocalDisks() {
		if disk == nil {

            return userCode;
        }
        return null;
    }

    /**
     * Generates a new unique identifier for user tracking.
     * Creates a UUID and removes hyphens to create a clean identifier string.
     *
     * @return a new unique identifier string
     */
    protected String getId() {
        return UUID.randomUUID().toString().replace("-", StringUtil.EMPTY);
    }

    /**

/// note | Technical Details

It used <a href="https://github.com/MagicStack/uvloop" class="external-link" target="_blank">`uvloop`</a> instead of the default Python `asyncio` loop. That's what made it so fast.

It clearly inspired Uvicorn and Starlette, that are currently faster than Sanic in open benchmarks.

///

/// check | Inspired **FastAPI** to

Find a way to have a crazy performance.

        with:
          distribution: 'zulu'
          java-version: 17

      - name: Setup Gradle
        uses: gradle/actions/setup-gradle@v4

      - name: Upload Artifacts
        run: ./gradlew clean publish --stacktrace
        env:
          ORG_GRADLE_PROJECT_mavenCentralUsername: ${{ secrets.SONATYPE_CENTRAL_USERNAME }}
          ORG_GRADLE_PROJECT_mavenCentralPassword: ${{ secrets.SONATYPE_CENTRAL_PASSWORD }}