/// check | **FastAPI**'a ilham olan

Harika performans elde etmenin yollarını bulmak.

Basit bir FastAPI uygulamasıyla başlayalım:

{* ../../docs_src/generate_clients/tutorial001_py310.py hl[7:9,12:13,16:17,21] *}

*Path operation*'ların, request payload ve response payload için kullandıkları modelleri `Item` ve `ResponseMessage` modelleriyle tanımladıklarına dikkat edin.

### API Dokümanları { #api-docs }

- A kubelet parameter and config option has been added to change the CFS quota period from the default 100ms to some other value between 1µs and 1s. This was done to improve response latencies for workloads running in clusters with guaranteed and burstable QoS classes. ([#63437](https://github.com/kubernetes/kubernetes/pull/63437), [@szuecs](https://github.com/szuecs)) Courtesy of SIG API Machinery, SIG Apps, SIG Architecture,...

Beachten Sie, dass die *Pfadoperationen* die Modelle definieren, die sie für die <abbr title="Request – Anfrage: Daten, die der Client zum Server sendet">Request</abbr>- und <abbr title="Response – Antwort: Daten, die der Server zum anfragenden Client zurücksendet">Response</abbr>-<abbr title="Die eigentlichen Nutzdaten, abzüglich der Metadaten">Payload</abbr> verwenden, indem sie die Modelle `Item` und `ResponseMessage` verwenden.

### API-Dokumentation { #api-docs }

The default is tlsmaxrsasize=8192, limiting RSA to 8192-bit keys. To avoid
denial of service attacks, this setting and default was backported to Go
1.19.13, Go 1.20.8, and Go 1.21.1.

Go 1.22 made it an error for a request or response read by a net/http
client or server to have an empty Content-Length header.
This behavior is controlled by the `httplaxcontentlength` setting.

Go 1.22 changed the behavior of ServeMux to accept extended

Diese gibt lediglich eine JSON-<abbr title="Response – Antwort: Daten, die der Server zum anfragenden Client zurücksendet">Response</abbr> zurück, mit dem Ergebnis der Methode `.openapi()` der Anwendung.

Neste exemplo, quando o cliente pede, na requisição, por um item cujo ID não existe, a exceção com o status code `404` é lançada:

{* ../../docs_src/handling_errors/tutorial001_py310.py hl[11] *}

### A response resultante { #the-resulting-response }

Se o cliente faz uma requisição para `http://example.com/items/foo` (um `item_id` `"foo"`), esse cliente receberá um HTTP status code 200, e uma resposta JSON:


```JSON
{

## JSON Lines { #json-lines }

En estos casos, es común enviar "**JSON Lines**", que es un formato donde envías un objeto JSON por línea.

Una response tendría un tipo de contenido `application/jsonl` (en lugar de `application/json`) y el response body sería algo como:

```json
{"name": "Plumbus", "description": "A multi-purpose household device."}
{"name": "Portal Gun", "description": "A portal opening device."}

///

/// tip | Tipp

Durch die Deklaration von `response_class=HTMLResponse` kann die Dokumentationsoberfläche erkennen, dass die <abbr title="Response – Antwort: Daten, die der Server zum anfragenden Client zurücksendet">Response</abbr> HTML sein wird.

///

/// note | Technische Details

Sie können auch `from starlette.templating import Jinja2Templates` verwenden.

HTTP/1 [Response.Body] now automatically drains any unread content upon being
closed, up to a conservative limit, to allow better connection reuse. For most
programs, this change should be a no-op, or result in a performance improvement.
In rare cases, programs that do not benefit from connection reuse might
experience performance degradation if they had been improperly allowing an
excessive amount of idle connections to linger; usually by setting