👆 💪 📣 `example` Pydantic 🏷 ⚙️ `Config` &amp; `schema_extra`, 🔬 <a href="https://docs.pydantic.dev/latest/concepts/json_schema/#customizing-json-schema" class="external-link" target="_blank">Pydantic 🩺: 🔗 🛃</a>:

//// tab | 🐍 3️⃣.6️⃣ &amp; 🔛

```Python hl_lines="15-23"
{!> ../../docs_src/schema_extra_example/tutorial001.py!}
```

////

//// tab | 🐍 3️⃣.1️⃣0️⃣ &amp; 🔛

```Python hl_lines="13-21"

👈, 👆 💪 ⚙️ `WSGIMiddleware` & ⚙️ ⚫️ 🎁 👆 🇨🇻 🈸, 🖼, 🏺, ✳, ♒️.

## ⚙️ `WSGIMiddleware`

👆 💪 🗄 `WSGIMiddleware`.

⤴️ 🎁 🇨🇻 (✅ 🏺) 📱 ⏮️ 🛠️.

& ⤴️ 🗻 👈 🔽 ➡.

```Python hl_lines="2-3  22"
{!../../docs_src/wsgi/tutorial001.py!}
```

## ✅ ⚫️

🔜, 🔠 📨 🔽 ➡ `/v1/` 🔜 🍵 🏺 🈸.

& 🎂 🔜 🍵 **FastAPI**.

👆 💪 ✍ 🌅 🔃 ⚫️ <a href="https://12factor.net/config" class="external-link" target="_blank">1️⃣2️⃣-⚖ 📱: 📁</a>.

///

### 🆎 &amp; 🔬

👫 🌐 🔢 💪 🕴 🍵 ✍ 🎻, 👫 🔢 🐍 &amp; ✔️ 🔗 ⏮️ 🎏 📋 &amp; 🎂 ⚙️ (&amp; ⏮️ 🎏 🏃‍♂ ⚙️, 💾, 🚪, 🇸🇻).

👈 ⛓ 👈 🙆 💲 ✍ 🐍 ⚪️➡️ 🌐 🔢 🔜 `str`, &amp; 🙆 🛠️ 🎏 🆎 ⚖️ 🔬 ✔️ 🔨 📟.

## Pydantic `Settings`

## 🥇 🔗 "☑"

👆 💪 ✍ 🥇 🔗 ("☑") 💖:

//// tab | 🐍 3️⃣.6️⃣ & 🔛

```Python hl_lines="8-9"
{!> ../../docs_src/dependencies/tutorial005.py!}
```

////

//// tab | 🐍 3️⃣.1️⃣0️⃣ & 🔛

```Python hl_lines="6-7"
{!> ../../docs_src/dependencies/tutorial005_py310.py!}
```

////

⚫️ 📣 📦 🔢 🔢 `q` `str`, & ⤴️ ⚫️ 📨 ⚫️.

👉 🙅 (🚫 📶 ⚠), ✋️ 🔜 ℹ 👥 🎯 🔛 ❔ 🎧-🔗 👷.

     * @throws Exception
     */
    @Test
    public void testPerformance() throws Exception {
        int num = 100000;
        Map<String, Object> hmap = new HashMap<String, Object>();
        Map<String, Object> amap = new ArrayMap<String, Object>();

        long start = System.currentTimeMillis();
        for (int i = 0; i < num; i++) {
            hmap.put(String.valueOf(i), null);
        }

`HTTPException` 😐 🐍 ⚠ ⏮️ 🌖 📊 🔗 🔗.

↩️ ⚫️ 🐍 ⚠, 👆 🚫 `return` ⚫️, 👆 `raise` ⚫️.

👉 ⛓ 👈 🚥 👆 🔘 🚙 🔢 👈 👆 🤙 🔘 👆 *➡ 🛠️ 🔢*, & 👆 🤚 `HTTPException` ⚪️➡️ 🔘 👈 🚙 🔢, ⚫️ 🏆 🚫 🏃 🎂 📟 *➡ 🛠️ 🔢*, ⚫️ 🔜 ❎ 👈 📨 ▶️️ ↖️ & 📨 🇺🇸🔍 ❌ ⚪️➡️ `HTTPException` 👩‍💻.

💰 🙋‍♀ ⚠ 🤭 `return`😅 💲 🔜 🌖 ⭐ 📄 🔃 🔗 & 💂‍♂.

👉 🖼, 🕐❔ 👩‍💻 📨 🏬 🆔 👈 🚫 🔀, 🤚 ⚠ ⏮️ 👔 📟 `404`:

```Python hl_lines="11"

👆 💪 ⚙️ `jsonable_encoder` 👈.

⚫️ 📨 🎚, 💖 Pydantic 🏷, & 📨 🎻 🔗 ⏬:

//// tab | 🐍 3️⃣.6️⃣ & 🔛

```Python hl_lines="5  22"
{!> ../../docs_src/encoder/tutorial001.py!}
```

////

//// tab | 🐍 3️⃣.1️⃣0️⃣ & 🔛

```Python hl_lines="4  21"
{!> ../../docs_src/encoder/tutorial001_py310.py!}
```

////

👉 🖼, ⚫️ 🔜 🗜 Pydantic 🏷 `dict`, & `datetime` `str`.

Uvicorn 🔜 ⌛ 🗳 🔐 Uvicorn `http://127.0.0.1:8000/app`, & ⤴️ ⚫️ 🔜 🗳 🎯 🚮 ➕ `/api/v1` 🔡 🔛 🔝.

## 🔃 🗳 ⏮️ 🎞 ➡ 🔡

✔️ 🤯 👈 🗳 ⏮️ 🎞 ➡ 🔡 🕴 1️⃣ 🌌 🔗 ⚫️.

🎲 📚 💼 🔢 🔜 👈 🗳 🚫 ✔️ 🏚 ➡ 🔡.

## 🌀 ℹ

👆 💪 🌀 📨 ℹ ⚪️➡️ 💗 🥉, 🔌 `response_model`, `status_code`, & `responses` 🔢.

👆 💪 📣 `response_model`, ⚙️ 🔢 👔 📟 `200` (⚖️ 🛃 1️⃣ 🚥 👆 💪), & ⤴️ 📣 🌖 ℹ 👈 🎏 📨 `responses`, 🔗 🗄 🔗.

**FastAPI** 🔜 🚧 🌖 ℹ ⚪️➡️ `responses`, & 🌀 ⚫️ ⏮️ 🎻 🔗 ⚪️➡️ 👆 🏷.

🖼, 👆 💪 📣 📨 ⏮️ 👔 📟 `404` 👈 ⚙️ Pydantic 🏷 & ✔️ 🛃 `description`.

& 📨 ⏮️ 👔 📟 `200` 👈 ⚙️ 👆 `response_model`, ✋️ 🔌 🛃 `example`:

👉 🚫 🚫 **FastAPI**, ⚫️ 🍕 🇺🇸🔍 🛠️.

///

## 📦 📁 📂

👆 💪 ⚒ 📁 📦 ⚙️ 🐩 🆎 ✍ & ⚒ 🔢 💲 `None`:

//// tab | 🐍 3️⃣.6️⃣ & 🔛

```Python hl_lines="9  17"
{!> ../../docs_src/request_files/tutorial001_02.py!}
```

////

//// tab | 🐍 3️⃣.1️⃣0️⃣ & 🔛

```Python hl_lines="7  14"
{!> ../../docs_src/request_files/tutorial001_02_py310.py!}
```

////