🐔 Ready the chicken! Your app is ready at https://myapp.fastapicloud.dev
```

</div>

That's it! Now you can access your app at that URL. ✨

## Recap, step by step { #recap-step-by-step }

### Step 1: import `FastAPI` { #step-1-import-fastapi }

{* ../../docs_src/first_steps/tutorial001_py39.py hl[1] *}

`FastAPI` is a Python class that provides all the functionality for your API.

	return nil
}

// Step takes a string provided from a server (or just an empty string for the
// very first conversation step) and attempts to move the authentication
// conversation forward.  It returns a string to be sent to the server or an
// error if the server message is invalid.  Calling Step after a conversation
// completes is also an error.
func (x *XDGSCRAMClient) Step(challenge string) (response string, err error) {

```

</div>

Das war's! Jetzt können Sie Ihre App unter dieser URL aufrufen. ✨

## Zusammenfassung, Schritt für Schritt { #recap-step-by-step }

### Schritt 1: `FastAPI` importieren { #step-1-import-fastapi }

{* ../../docs_src/first_steps/tutorial001_py39.py hl[1] *}

`FastAPI` ist eine Python-Klasse, die die gesamte Funktionalität für Ihre API bereitstellt.

    ///

    The `--upgrade` option tells `pip` to upgrade the packages if they are already installed.

    Because the previous step copying the file could be detected by the **Docker cache**, this step will also **use the Docker cache** when available.

## ステップ毎の要約

### Step 1: `FastAPI`をインポート

{* ../../docs_src/first_steps/tutorial001.py hl[1] *}

`FastAPI`は、APIのすべての機能を提供するPythonクラスです。

/// note | 技術詳細

`FastAPI`は`Starlette`を直接継承するクラスです。

`FastAPI`でも<a href="https://www.starlette.dev/" class="external-link" target="_blank">Starlette</a>のすべての機能を利用可能です。

///

### Step 2: `FastAPI`の「インスタンス」を生成

                id = name
                executionMode = ExecutionMode.RUN_ONLY_ON_FAILURE
                conditions {
                    equals("teamcity.build.step.status.$GRADLE_RUNNER_STEP_NAME", "failure")
                    equals("teamcity.build.step.status.$GRADLE_RETRY_RUNNER_STEP_NAME", "success")
                }
                scriptContent =
                    """

This could be useful if for example you live in a country that restricts some URLs.

### Disable the automatic docs { #disable-the-automatic-docs }

The first step is to disable the automatic docs, as by default, those use the default CDN.

To disable them, set their URLs to `None` when creating your `FastAPI` app:

{* ../../docs_src/custom_docs_ui/tutorial001_py39.py hl[8] *}

		//    successfully acquiring the lock.
		// 2) lk2 then needs to advance and remove the resource from lockMap.
		// 3) lk3 or lk4 (whichever didn't execute in step 1) then executes and creates
		//    a new entry in lockMap and acquires a lock for the same resource.

		<-lk2ch
		lk3ok := <-lk3ch
		lk4ok := <-lk4ch

		if lk3ok && lk4ok {

{* ../../docs_src/security/tutorial005_an_py310.py hl[5,9,13,47,65,106,108:116,122:126,130:136,141,157] *}

Now let's review those changes step by step.

## OAuth2 Security scheme { #oauth2-security-scheme }

The first change is that now we are declaring the OAuth2 security scheme with two available scopes, `me` and `items`.

        ArrayReference<? extends L> arrayRef = (ArrayReference<? extends L>) ref;
        // Try to clear out the array slot, n.b. if we fail that is fine, in either case the
        // arrayRef will be out of the array after this step.
        locks.compareAndSet(arrayRef.index, arrayRef, null);
      }
    }

    @Override
    public int size() {
      return size;
    }