* seconds.
     *
     * @see Sink.timeout
     */
    fun writeTimeout(duration: KotlinDuration) =
      apply {
        writeTimeout = checkDuration("duration", duration)
      }

    /**
     * Sets the interval between HTTP/2 and web socket pings initiated by this client. Use this to
     * automatically send ping frames until either the connection fails or it is closed. This keeps

custom proprietary headers can be added <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers" class="external-link" target="_blank">using the 'X-' prefix</a>.

But if you have custom headers that you want a client in a browser to be able to see, you need to add them to your CORS configurations ([CORS (Cross-Origin Resource Sharing)](cors.md){.internal-link target=_blank}) using the parameter `expose_headers` documented in <a href="https://www.starlette.io/middleware/#corsmiddleware"...

      nameValues[i++] = string
    }
    return headerEntries(*nameValues)
  }

  private fun writeMedium(
    sink: BufferedSink,
    i: Int,
  ) {
    sink.writeByte(i ushr 16 and 0xff)
    sink.writeByte(i ushr 8 and 0xff)
    sink.writeByte(i and 0xff)
  }

# 🏧 👩‍💻 🦮

## 🌖 ⚒

👑 [🔰 - 👩‍💻 🦮](../tutorial/index.md){.internal-link target=_blank} 🔜 🥃 🤝 👆 🎫 🔘 🌐 👑 ⚒ **FastAPI**.

⏭ 📄 👆 🔜 👀 🎏 🎛, 📳, & 🌖 ⚒.

/// tip

⏭ 📄 **🚫 🎯 "🏧"**.

 & ⚫️ 💪 👈 👆 ⚙️ 💼, ⚗ 1️⃣ 👫.

///

## ✍ 🔰 🥇

👆 💪 ⚙️ 🏆 ⚒ **FastAPI** ⏮️ 💡 ⚪️➡️ 👑 [🔰 - 👩‍💻 🦮](../tutorial/index.md){.internal-link target=_blank}.

& ⏭ 📄 🤔 👆 ⏪ ✍ ⚫️, & 🤔 👈 👆 💭 👈 👑 💭.

⏮️ 🖼 ✊ ⏮️ <a href="https://code.visualstudio.com" class="external-link" target="_blank">🎙 🎙 📟</a>.

✋️ 👆 🔜 🤚 🎏 👨‍🎨 🐕‍🦺 ⏮️ <a href="https://www.jetbrains.com/pycharm/" class="external-link" target="_blank">🗒</a> &amp; 🌅 🎏 🐍 👨‍🎨:

<img src="/img/tutorial/body/image05.png">

/// tip

**Typer** a FastAPI kistestvére. A **CLI-k FastAPI-ja**. ⌨️ 🚀

## Követelmények

A FastAPI óriások vállán áll:

* <a href="https://www.starlette.io/" class="external-link" target="_blank">Starlette</a> a webes részekhez.
* <a href="https://docs.pydantic.dev/" class="external-link" target="_blank">Pydantic</a> az adat részekhez.

personalizados se pueden agregar <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers" class="external-link" target="_blank">usando el prefijo 'X-'</a>.

Pero si tienes headers personalizados que quieres que un cliente en un navegador pueda ver, necesitas agregarlos a tus configuraciones de CORS (leer más en [CORS (Cross-Origin Resource Sharing)](../tutorial/cors.md){.internal-link target=_blank}), usando el parámetro `expose_headers` documentado en <a href="https://www.starlette.io/mi...

        assertEquals("Status of production-cluster is changed to GREEN.", result);
    }

    // Test with exception during ping
    public void test_execute_pingException() {
        SearchEngineClient searchEngineClient = new SearchEngineClient() {
            @Override
            public PingResponse ping() {
                throw new RuntimeException("Connection failed");
            }
        };

# Histoire, conception et avenir

Il y a quelque temps, <a href="https://github.com/fastapi/fastapi/issues/3#issuecomment-454956920" class="external-link" target="_blank">un utilisateur de **FastAPI** a demandé</a> :

> Quelle est l'histoire de ce projet ? Il semble être sorti de nulle part et est devenu génial en quelques semaines [...].

Voici un petit bout de cette histoire.

## Alternatives

### Kontrol Edelim

Tarayıcınızı açıp <a href="http://127.0.0.1:8000" class="external-link" target="_blank">http://127.0.0.1:8000</a> bağlantısına gidin.

Şu şekilde bir JSON yanıtı ile karşılaşacağız:

```JSON
{"message": "Hello World"}
```

### Etkileşimli API Dokümantasyonu

Şimdi <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a> bağlantısını açalım.