<font color="#4E9A06">INFO</font>:     Started parent process [<font color="#34E2E2"><b>27365</b></font>]
<font color="#4E9A06">INFO</font>:     Started server process [<font color="#06989A">27368</font>]
<font color="#4E9A06">INFO</font>:     Waiting for application startup.
<font color="#4E9A06">INFO</font>:     Application startup complete.
<font color="#4E9A06">INFO</font>:     Started server process [<font color="#06989A">27369</font>]

## Основные свойства Starlette

**FastAPI** основан на <a href="https://www.starlette.io/" class="external-link" target="_blank"><strong>Starlette</strong></a> и полностью совместим с ним. Так что, любой дополнительный код Starlette, который у вас есть, будет также работать.

Özellikle, (diğer birçok araç arasında) Uvicorn, Starlette ve FastAPI'ın birlikte karşılaştırıldığını görebilirsiniz.

Aracın çözdüğü problem ne kadar basitse, performansı o kadar iyi olacaktır. Ancak kıyaslamaların çoğu, aracın sağladığı ek özellikleri test etmez.

Hiyerarşi şöyledir:

* **Uvicorn**: bir ASGI sunucusu
    * **Starlette**: (Uvicorn'u kullanır) bir web mikroframeworkü

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

    /**
     * Main method to start the Fess application.
     * Sets up system properties, configures Tomcat, and starts the server.
     *
     * @param args command line arguments (not used)
     */
    public static void main(final String[] args) {
        // update java.io.tmpdir

{* ../../docs_src/response_headers/tutorial001.py hl[10:12] *}

/// note | 📡 ℹ

👆 💪 ⚙️ `from starlette.responses import Response` ⚖️ `from starlette.responses import JSONResponse`.

**FastAPI** 🚚 🎏 `starlette.responses` `fastapi.responses` 🏪 👆, 👩‍💻. ✋️ 🌅 💪 📨 👟 🔗 ⚪️➡️ 💃.

 & `Response` 💪 ⚙️ 🛎 ⚒ 🎚 & 🍪, **FastAPI** 🚚 ⚫️ `fastapi.Response`.

///

<img src="/img/tutorial/custom-response/image01.png">

## 💪 📨

📥 💪 📨.

✔️ 🤯 👈 👆 💪 ⚙️ `Response` 📨 🕳 🙆, ⚖️ ✍ 🛃 🎧-🎓.

/// note | 📡 ℹ

👆 💪 ⚙️ `from starlette.responses import HTMLResponse`.

**FastAPI** 🚚 🎏 `starlette.responses` `fastapi.responses` 🏪 👆, 👩‍💻. ✋️ 🌅 💪 📨 👟 🔗 ⚪️➡️ 💃.

///

### `Response`

👑 `Response` 🎓, 🌐 🎏 📨 😖 ⚪️➡️ ⚫️.

👆 💪 📨 ⚫️ 🔗.

    checkNotNull(runnable, "Runnable was null.");
    checkNotNull(executor, "Executor was null.");

    // Lock while we check state. We must maintain the lock while adding the new pair so that
    // another thread can't run the list out from under us. We only add to the list if we have not
    // yet started execution.
    synchronized (this) {
      if (!executed) {
        runnables = new RunnableExecutorPair(runnable, executor, runnables);

## Technische Details

Die Klasse `BackgroundTasks` stammt direkt von <a href="https://www.starlette.io/background/" class="external-link" target="_blank">`starlette.background`</a>.

Sie wird direkt in FastAPI importiert/inkludiert, sodass Sie sie von `fastapi` importieren können und vermeiden, versehentlich das alternative `BackgroundTask` (ohne das `s` am Ende) von `starlette.background` zu importieren.

  public TestThread(L lockLikeObject, String threadName) {
    super(threadName);
    this.lockLikeObject = checkNotNull(lockLikeObject);
    start();
  }

  // Thread.stop() is okay because all threads started by a test are dying at the end of the test,
  // so there is no object state put at risk by stopping the threads abruptly. In some cases a test

## Funcionalidades de Starlette

**FastAPI** es totalmente compatible con (y está basado en) <a href="https://www.starlette.io/" class="external-link" target="_blank"><strong>Starlette</strong></a>. Así que, cualquier código adicional de Starlette que tengas, también funcionará.