* **WebSockets**
    * de tester le code très facilement avec `requests` et `pytest`
    * **<abbr title="Cross-Origin Resource Sharing">CORS</abbr>**
    * **Cookie Sessions**
    * ... et plus encore.

## Performance

* WebSocket-Unterstützung.
* Hintergrundtasks im selben Prozess.
* Events für das Hoch- und Herunterfahren.
* Testclient basierend auf HTTPX.
* CORS, GZip, statische Dateien, Streamende Responses.
* Session- und Cookie-Unterstützung.
* 100 % Testabdeckung.
* 100 % Typannotierte Codebasis.
* Wenige starke Abhängigkeiten.

* Ọpọlọpọ àwọn àfikún àwọn ẹ̀yà (ọpẹ́ pàtàkìsi sí Starlette) bí:
    * **WebSockets**
    * àwọn ìdánwò tí ó rọrùn púpọ̀ lórí HTTPX àti `pytest`
    * **CORS**
    * **Cookie Sessions**
    * ...àti síwájú síi.

## Ìṣesí

* Many extra features (thanks to Starlette) as:
    * **WebSockets**
    * extremely easy tests based on HTTPX and `pytest`
    * **CORS**
    * **Cookie Sessions**
    * ...and more.

## Performance { #performance }

   * cookies can be 4KiB, and should be possible to send.
   *
   *  http://tools.ietf.org/html/draft-ietf-httpbis-header-compression-12#section-5.2
   */
  @Test
  fun largeHeaderValue() {
    val value = CharArray(4096)
    Arrays.fill(value, '!')
    val headerBlock = headerEntries("cookie", String(value))
    hpackWriter!!.writeHeaders(headerBlock)

    val callReference = AtomicReference<Call>()

    class DisconnectingCookieJar : CookieJar {
      override fun saveFromResponse(
        url: HttpUrl,
        cookies: List<Cookie>,
      ) {}

      override fun loadForRequest(url: HttpUrl): List<Cookie> {
        callReference.get().cancel()
        return emptyList()
      }
    }
    client =
      client
        .newBuilder()

* Seriously impressive performance.
* WebSocket support.
* In-process background tasks.
* Startup and shutdown events.
* Test client built on HTTPX.
* CORS, GZip, Static Files, Streaming responses.
* Session and Cookie support.
* 100% test coverage.
* 100% type annotated codebase.
* Few hard dependencies.

Starlette is currently the fastest Python framework tested. Only surpassed by Uvicorn, which is not a framework, but a server.

f422"}.fa-compress-arrows-alt:before{content:"\f78c"}.fa-concierge-bell:before{content:"\f562"}.fa-confluence:before{content:"\f78d"}.fa-connectdevelop:before{content:"\f20e"}.fa-contao:before{content:"\f26d"}.fa-cookie:before{content:"\f563"}.fa-cookie-bite:before{content:"\f564"}.fa-copy:before{content:"\f0c5"}.fa-copyright:before{content:"\f1f9"}.fa-cotton-bureau:before{content:"\f89e"}.fa-couch:before{content:"\f4b8"}.fa-cpanel:before{content:"\f388"}.fa-creative-commons:before{content:"\f25...

f422"}.fa-compress-arrows-alt:before{content:"\f78c"}.fa-concierge-bell:before{content:"\f562"}.fa-confluence:before{content:"\f78d"}.fa-connectdevelop:before{content:"\f20e"}.fa-contao:before{content:"\f26d"}.fa-cookie:before{content:"\f563"}.fa-cookie-bite:before{content:"\f564"}.fa-copy:before{content:"\f0c5"}.fa-copyright:before{content:"\f1f9"}.fa-cotton-bureau:before{content:"\f89e"}.fa-couch:before{content:"\f4b8"}.fa-cpanel:before{content:"\f388"}.fa-creative-commons:before{content:"\f25...

      MockResponse
        .Builder()
        .addHeader("Set-Cookie: a=FIRST")
        .addHeader("Last-Modified: " + formatDate(-1, TimeUnit.HOURS))
        .addHeader("Cache-Control: max-age=0")
        .body("A")
        .build(),
    )
    server.enqueue(
      MockResponse
        .Builder()
        .addHeader("Set-Cookie: a=SECOND")
        .code(HttpURLConnection.HTTP_NOT_MODIFIED)