/**
     * Enumeration of supported browser types for user agent detection.
     * Each type represents a major browser family that can be detected
     * from the User-Agent header string.
     */
    public enum UserAgentType {
        /** Internet Explorer and Trident-based browsers */
        IE,
        /** Mozilla Firefox browser */
        FIREFOX,
        /** Google Chrome browser */
        CHROME,

Und gibt einen Header `WWW-Authenticate` mit dem Wert `Basic` und einem optionalen `realm`-Parameter („Bereich“) zurück.

Dadurch wird der Browser angewiesen, die integrierte Eingabeaufforderung für einen Benutzernamen und ein Passwort anzuzeigen.

Wenn Sie dann den Benutzernamen und das Passwort eingeben, sendet der Browser diese automatisch im Header.

## Einfaches HTTP Basic Auth

* Importieren Sie `HTTPBasic` und `HTTPBasicCredentials`.

## Steps { #steps }

So, let's say you have a frontend running in your browser at `http://localhost:8080`, and its JavaScript is trying to communicate with a backend running at `http://localhost` (because we don't specify a port, the browser will assume the default port `80`).

Als Nächstes überprüft der Browser, ob die Response gültig und mit dem richtigen kryptografischen Schlüssel usw. verschlüsselt ist. Anschließend **entschlüsselt er die Response** und verarbeitet sie.

<img src="/img/deployment/https/https07.drawio.svg">

Next, the browser would verify that the response is valid and encrypted with the right cryptographic key, etc. It would then **decrypt the response** and process it.

<img src="/img/deployment/https/https07.drawio.svg">

<div class="termy">

```console
$ uvicorn main:app --reload

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

Öffnen Sie Ihren Browser unter <a href="http://127.0.0.1:8000" class="external-link" target="_blank">http://127.0.0.1:8000</a>.

Sie sehen eine einfache Seite wie:

<img src="/img/tutorial/websockets/image01.png">

  private OAuthSessionFactory sessionFactory;

  /** Guarded by this. */
  private OAuthSession session;

  public SlackClient(SlackApi slackApi) {
    this.slackApi = slackApi;
  }

  /** Shows a browser URL to authorize this app to act as this user. */
  public void requestOauthSession(String scopes, String team) throws Exception {
    if (sessionFactory == null) {
      sessionFactory = new OAuthSessionFactory(slackApi);

     * <code>possibleNTDomainOrWorkgroup</code> parameter is <code>true</code> an
     * additional name query will be performed to locate a master browser.
     *
     * @param hostname the hostname to resolve
     * @param possibleNTDomainOrWorkgroup if true, perform additional master browser lookup
     *
     * @return the first resolved address
     * @throws UnknownHostException if the hostname cannot be resolved
     */

///

## <abbr title="juga disebut: serialization, parsing, marshalling">Konversi</abbr> data

Jika contoh berikut dijalankan dan diakses browser melalui <a href="http://127.0.0.1:8000/items/3" class="external-link" target="_blank">http://127.0.0.1:8000/items/3</a>, anda akan melihat respon:

```JSON
{"item_id":3}
```

/// check | Periksa

And returns a header `WWW-Authenticate` with a value of `Basic`, and an optional `realm` parameter.

That tells the browser to show the integrated prompt for a username and password.

Then, when you type that username and password, the browser sends them in the header automatically.

## Simple HTTP Basic Auth { #simple-http-basic-auth }

* Import `HTTPBasic` and `HTTPBasicCredentials`.