## Metadata for API

You can set the following fields that are used in the OpenAPI specification and the automatic API docs UIs:

| Parameter | Type | Description |
|------------|------|-------------|
| `title` | `str` | The title of the API. |
| `summary` | `str` | A short summary of the API. <small>Available since OpenAPI 3.1.0, FastAPI 0.99.0.</small> |
| `description` | `str` | A short description of the API. It can use Markdown. |

def test_openapi_schema():
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == {
        "openapi": "3.1.0",
        "info": {"title": "FastAPI", "version": "0.1.0"},
        "paths": {
            "/users/me": {
                "get": {
                    "responses": {
                        "200": {

Użycie w Twoim edytorze jest tym, co pokazuje prawdziwe korzyści z FastAPI, pozwala zobaczyć jak mało kodu musisz napisać, wszystkie funkcje, takie jak kontrola typów, <abbr title="auto-complete, autocompletion, IntelliSense">automatyczne uzupełnianie</abbr>, itd.

---

## Instalacja FastAPI

Jako pierwszy krok zainstaluj FastAPI.

👈 "⌛ 🕳 🙆" 🛎 🔗 <abbr title="Input and Output">👤/🅾</abbr> 🛠️ 👈 📶 "🐌" (🔬 🚅 🕹 &amp; 💾 💾), 💖 ⌛:

* 📊 ⚪️➡️ 👩‍💻 📨 🔘 🕸
* 📊 📨 👆 📋 📨 👩‍💻 🔘 🕸
* 🎚 📁 💾 ✍ ⚙️ &amp; 🤝 👆 📋
* 🎚 👆 📋 🤝 ⚙️ ✍ 💾
* 🛰 🛠️ 🛠️
* 💽 🛠️ 🏁
* 💽 🔢 📨 🏁
* ♒️.

🛠️ 🕰 🍴 ✴️ ⌛ <abbr title="Input and Output">👤/🅾</abbr> 🛠️, 👫 🤙 👫 "👤/🅾 🔗" 🛠️.

Insbesondere Benutzermodelle, denn:

* Das **hereinkommende Modell** sollte ein Passwort haben können.
* Das **herausgehende Modell** sollte kein Passwort haben.
* Das **Datenbankmodell** sollte wahrscheinlich ein <abbr title='Ein aus scheinbar zufälligen Zeichen bestehender „Fingerabdruck“ eines Textes. Der Inhalt des Textes kann nicht eingesehen werden.'>gehashtes</abbr> Passwort haben.

/// danger | "Gefahr"

🔜 🔄 📨 ❌ 🏬 💖:

```JSON
{
  "title": "towel",
  "size": "XL"
}
```

👆 🔜 📨 📨 💬 👆 👈 💽 ❌ ⚗ 📨 💪:

```JSON hl_lines="12-15"
{
  "detail": [
    {
      "loc": [
        "body",
        "size"
      ],
      "msg": "value is not a valid integer",
      "type": "type_error.integer"
    }
  ],
  "body": {
    "title": "towel",
    "size": "XL"
  }
}

@REM ----------------------------------------------------------------------------

@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on'
@echo off
@REM set title of command window
title %0
@REM enable echoing by setting MAVEN_BATCH_ECHO to 'on'
@if "%MAVEN_BATCH_ECHO%" == "on"  echo %MAVEN_BATCH_ECHO%

@REM set %HOME% to equivalent of $HOME
if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%")

For this simple example, we are going to just be completely insecure and return the same `username` as the token.

/// tip

In the next chapter, you will see a real secure implementation, with password hashing and <abbr title="JSON Web Tokens">JWT</abbr> tokens.

But for now, let's focus on the specific details we need.

///

//// tab | Python 3.10+

```Python hl_lines="87"

다음과 같이 시작하는 JSON을 확인할 수 있습니다:

```JSON
{
    "openapi": "3.0.2",
    "info": {
        "title": "FastAPI",
        "version": "0.1.0"
    },
    "paths": {
        "/items/": {
            "get": {
                "responses": {
                    "200": {

And if you see the resulting OpenAPI (at `/openapi.json` in your API), you will see your extension as part of the specific *path operation* too:

```JSON hl_lines="22"
{
    "openapi": "3.1.0",
    "info": {
        "title": "FastAPI",
        "version": "0.1.0"
    },
    "paths": {
        "/items/": {
            "get": {
                "summary": "Read Items",
                "operationId": "read_items_items__get",