Wenn Sie das ausführen und auf <a href="http://localhost:8000/v1/" class="external-link" target="_blank">http://localhost:8000/v1/</a> gehen, sehen Sie die <abbr title="Response – Antwort: Daten, die der Server zum anfragenden Client zurücksendet">Response</abbr> von Flask:

```txt
Hello, World from Flask!
```

import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;

/** Tests for a directed {@link StandardMutableGraph}. */
@AndroidIncompatible
@RunWith(Parameterized.class)
@NullUnmarked
public final class StandardImmutableDirectedGraphTest extends AbstractStandardDirectedGraphTest {

  @Parameters(name = "allowsSelfLoops={0}")
  public static Collection<Object[]> parameters() {

/**
 * Abstract base class for tests that EventBus finds the correct subscribers.
 *
 * <p>The actual tests are distributed among the other classes in this package based on whether they
 * are annotated or abstract in the superclass.
 *
 * <p>This test must be outside the c.g.c.eventbus package to test correctly.
 *
 * @author Louis Wasserman
 */
abstract class AbstractEventBusTest<H> extends TestCase {

import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;

/** Tests for an undirected {@link StandardMutableGraph}. */
@AndroidIncompatible
@RunWith(Parameterized.class)
@NullUnmarked
public final class StandardImmutableUndirectedGraphTest
    extends AbstractStandardUndirectedGraphTest {

  @Parameters(name = "allowsSelfLoops={0}")
  public static Collection<Object[]> parameters() {

# SQL (관계형) 데이터베이스

**FastAPI**에서 SQL(관계형) 데이터베이스 사용은 필수가 아닙니다. 여러분이 원하는 **어떤 데이터베이스든** 사용할 수 있습니다.

여기서는 <a href="https://sqlmodel.tiangolo.com/" class="external-link" target="_blank">SQLModel</a>을 사용하는 예제를 살펴보겠습니다.

**SQLModel**은 <a href="https://www.sqlalchemy.org/" class="external-link" target="_blank">SQLAlchemy</a>와 Pydantic을 기반으로 구축되었습니다.SQLModel은 **SQL 데이터베이스**를 사용하는 FastAPI 애플리케이션에 완벽히 어울리도록 **FastAPI**의 제작자가 설계한 도구입니다.

/// tip | 팁

import org.dbflute.cbean.ConditionQuery;
import org.opensearch.action.search.SearchRequestBuilder;
import org.opensearch.index.query.QueryBuilder;

/**
 * @author ESFlute (using FreeGen)
 */
public class BsBoostDocumentRuleCB extends EsAbstractConditionBean {

    // ===================================================================================

import org.dbflute.cbean.ConditionQuery;
import org.opensearch.action.search.SearchRequestBuilder;
import org.opensearch.index.query.QueryBuilder;

/**
 * @author ESFlute (using FreeGen)
 */
public class BsFileAuthenticationCB extends EsAbstractConditionBean {

    // ===================================================================================

import org.dbflute.cbean.ConditionQuery;
import org.opensearch.action.search.SearchRequestBuilder;
import org.opensearch.index.query.QueryBuilder;

/**
 * @author ESFlute (using FreeGen)
 */
public class BsKeyMatchCB extends EsAbstractConditionBean {

    // ===================================================================================
    //                                                                           Attribute

import org.dbflute.cbean.ConditionQuery;
import org.opensearch.action.search.SearchRequestBuilder;
import org.opensearch.index.query.QueryBuilder;

/**
 * @author ESFlute (using FreeGen)
 */
public class BsLabelTypeCB extends EsAbstractConditionBean {

    // ===================================================================================
    //                                                                           Attribute

import org.dbflute.cbean.ConditionQuery;
import org.opensearch.action.search.SearchRequestBuilder;
import org.opensearch.index.query.QueryBuilder;

/**
 * @author ESFlute (using FreeGen)
 */
public class BsRequestHeaderCB extends EsAbstractConditionBean {

    // ===================================================================================
    //                                                                           Attribute