# 응답을 직접 반환하기

**FastAPI**에서 *경로 작업(path operation)*을 생성할 때, 일반적으로 `dict`, `list`, Pydantic 모델, 데이터베이스 모델 등의 데이터를 반환할 수 있습니다.

기본적으로 **FastAPI**는 [JSON 호환 가능 인코더](../tutorial/encoder.md){.internal-link target=_blank}에 설명된 `jsonable_encoder`를 사용해 해당 반환 값을 자동으로 `JSON`으로 변환합니다.

그런 다음, JSON 호환 데이터(예: `dict`)를 `JSONResponse`에 넣어 사용자의 응답을 전송하는 방식으로 처리됩니다.

그러나 *경로 작업*에서 `JSONResponse`를 직접 반환할 수도 있습니다.

예를 들어, 사용자 정의 헤더나 쿠키를 반환해야 하는 경우에 유용할 수 있습니다.

import javax.net.ssl.SSLSession
import okhttp3.internal.toImmutableList

/**
 * A record of a TLS handshake. For HTTPS clients, the client is *local* and the remote server is
 * its *peer*.
 *
 * This value object describes a completed handshake. Use [ConnectionSpec] to set policy for new
 * handshakes.
 */
class Handshake internal constructor(
  /**

import org.junit.jupiter.params.provider.ValueSource;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;

import jcifs.Configuration;
import jcifs.internal.SMBProtocolDecodingException;
import jcifs.internal.util.SMBUtil;
import jcifs.smb.NtStatus;

class Smb2EchoResponseTest {

    @Mock
    private Configuration mockConfig;

    @Mock
    private Smb2SigningDigest mockDigest;

package cmd

import (
	"context"
	"errors"
	"fmt"
	pathutil "path"
	"runtime"
	"sort"
	"strings"
	"sync"
	"time"

	"github.com/minio/minio/internal/dsync"
	"github.com/minio/minio/internal/logger"
	"github.com/minio/minio/internal/lsync"
)

// local lock servers
var globalLockServer *localLocker

// RWLocker - locker interface to introduce GetRLock, RUnlock.
type RWLocker interface {

package jcifs.internal.smb2.ioctl;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertNotSame;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertThrows;

import java.util.Arrays;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;

	public final fun getHeadersDelay (Ljava/util/concurrent/TimeUnit;)J
	public final fun getHttp2ErrorCode ()I
	public final fun getPushPromises ()Ljava/util/List;
	public final fun getSettings ()Lokhttp3/internal/http2/Settings;
	public final fun getSocketPolicy ()Lokhttp3/mockwebserver/SocketPolicy;
	public final fun getStatus ()Ljava/lang/String;
	public final fun getThrottleBytesPerPeriod ()J

As you saw in the previous chapter about [Deployment Concepts](concepts.md){.internal-link target=_blank}, there are multiple strategies you can use.

Here I'll show you how to use **Uvicorn** with **worker processes** using the `fastapi` command or the `uvicorn` command directly.

/// info

We have 3 different things that we synchronize on.

#### Http2Connection

This lock guards internal state of each connection. This lock is never held for blocking operations. That means that we acquire the lock, read or write a few fields and release the lock. No I/O and no application-layer callbacks.

#### Http2Stream

import assertk.assertions.isTrue
import java.util.concurrent.CopyOnWriteArraySet
import javax.net.ssl.SSLSocket
import javax.net.ssl.SSLSocketFactory
import kotlin.test.assertFailsWith
import okhttp3.internal.applyConnectionSpec
import okhttp3.internal.platform.Platform.Companion.isAndroid
import okhttp3.testing.PlatformRule
import okhttp3.testing.PlatformVersion.majorVersion
import org.junit.jupiter.api.Test

import org.mockito.quality.Strictness;

import jcifs.CIFSException;
import jcifs.Configuration;
import jcifs.SmbPipeHandle;
import jcifs.SmbPipeResource;
import jcifs.internal.smb2.ioctl.Smb2IoctlRequest;
import jcifs.internal.smb2.ioctl.Smb2IoctlResponse;

@ExtendWith(MockitoExtension.class)
@MockitoSettings(strictness = Strictness.LENIENT)
class SmbPipeHandleImplTest {

    @Mock
    SmbNamedPipe pipe;