## An app with callbacks { #an-app-with-callbacks }

Let's see all this with an example.

Imagine you develop an app that allows creating invoices.

These invoices will have an `id`, `title` (optional), `customer`, and `total`.

## Custom CDN for JavaScript and CSS { #custom-cdn-for-javascript-and-css }

Let's say that you want to use a different <abbr title="Content Delivery Network">CDN</abbr>, for example you want to use `https://unpkg.com/`.

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

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

 * (such as an XML document). Typically (but not always), the inverse process of "unescaping" the
 * text is performed automatically by the relevant parser.
 *
 * <p>For example, an XML escaper would convert the literal string {@code "Foo<Bar>"} into {@code
 * "Foo&lt;Bar&gt;"} to prevent {@code "<Bar>"} from being confused with an XML tag. When the

    /**
     * Test constructor with raw bytes.
     */
    @Test
    public void testConstructorWithRawBytes() {
        byte[] rawBytes = new byte[8];
        SMBUtil.writeInt8(1234567890L, rawBytes, 0); // Example timestamp
        AvTimestamp avTimestamp = new AvTimestamp(rawBytes);

        assertNotNull(avTimestamp);
        assertEquals(AvPair.MsvAvTimestamp, avTimestamp.getType());

## Introduction

Returns a set of temporary security credentials for applications/clients who have been authenticated through client credential grants provided by identity provider. Example providers include KeyCloak, Okta etc.

///

### DNS { #dns }

Тепер зосередьмося на всіх власне частинах HTTPS.

Спочатку браузер звернеться до **DNS-серверів**, щоб дізнатися, яка **IP-адреса для домену**, у цьому випадку `someapp.example.com`.

Сервери DNS повідомлять браузеру використати конкретну **IP-адресу**. Це буде публічна IP-адреса, яку використовує ваш сервер і яку ви налаштували на серверах DNS.

<img src="/img/deployment/https/https01.drawio.svg">

writeexamplepolicy policy grants creation or deletion of buckets with name ## starting with example. In addition, grants objects write permissions on buckets starting with ## example. # - name: writeexamplepolicy # statements: # - resources: # - 'arn:aws:s3:::example*/*' # actions: # - "s3:AbortMultipartUpload" # - "s3:GetObject" # - "s3:DeleteObject" # - "s3:PutObject" # - "s3:ListMultipartUploadP" # - resources: # - 'arn:aws:s3:::example*' # actions: # - "s3:CreateBucket" # - "s3:DeleteBucket" # - "s3:GetBucketLocation"...

### `UploadFile` { #uploadfile }

`UploadFile` tiene los siguientes atributos:

* `filename`: Un `str` con el nombre original del archivo que fue subido (por ejemplo, `myimage.jpg`).
* `content_type`: Un `str` con el tipo de contenido (MIME type / media type) (por ejemplo, `image/jpeg`).

En algunos casos, puede que quieras sobrescribir la lógica utilizada por las clases `Request` y `APIRoute`.

En particular, esta puede ser una buena alternativa a la lógica en un middleware.

Por ejemplo, si quieres leer o manipular el request body antes de que sea procesado por tu aplicación.

/// danger | Advertencia

Esta es una funcionalidad "avanzada".

Você pode **implantar um servidor** por conta própria usando uma combinação de ferramentas, pode usar um **serviço em nuvem** que faça parte do trabalho por você, entre outras opções.

Por exemplo, nós, a equipe por trás do FastAPI, criamos [**FastAPI Cloud**](https://fastapicloud.com), para tornar a implantação de aplicações FastAPI na nuvem o mais simples possível, com a mesma experiência de desenvolvimento de trabalhar com o FastAPI.