required: true
        - label: I already searched in Google "How to X in FastAPI" and didn't find any information.
          required: true
        - label: I already read and followed all the tutorial in the docs and didn't find an answer.
          required: true
        - label: I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
          required: true

Hier ist ein vollständigeres Beispiel.

Verwenden Sie eine Abhängigkeit, um zu überprüfen, ob Benutzername und Passwort korrekt sind.

Verwenden Sie dazu das Python-Standardmodul [`secrets`](https://docs.python.org/3/library/secrets.html), um den Benutzernamen und das Passwort zu überprüfen.

# WebSockets { #websockets }

Sie können [WebSockets](https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API) mit **FastAPI** verwenden.

## `websockets` installieren { #install-websockets }

Stellen Sie sicher, dass Sie eine [virtuelle Umgebung](../virtual-environments.md) erstellen, sie aktivieren und `websockets` installieren (eine Python-Bibliothek, die die Verwendung des „WebSocket“-Protokolls erleichtert):

<div class="termy">

```console

* marshall: marshall
* library: paquete (do not translate to "biblioteca" or "librería")
* instance: instance (do not translate to "instancia")
* scratch the surface: tocar los conceptos básicos
* string: string
* bug: bug
* docs: documentación (do not translate to "documentos")
* cheat sheet: cheat sheet (do not translate to "chuleta")
* key (as in key-value pair, dictionary key): clave
* array (as in JSON array): array

   <span style="background-color:#007166"><font color="#D3D7CF"> server </font></span>  Documentation at <font color="#729FCF"><u style="text-decoration-style:solid">http://127.0.0.1:8000/docs</u></font>

      <span style="background-color:#007166"><font color="#D3D7CF"> tip </font></span>  Running in development mode, for production use:
             <b>fastapi run</b>

             Logs:

# Server-Sent Events（SSE） { #server-sent-events-sse }

你可以使用 Server-Sent Events（SSE）把資料串流傳送給用戶端。

這與[串流 JSON Lines](stream-json-lines.md)類似，但使用瀏覽器原生支援、透過 [`EventSource` API](https://developer.mozilla.org/en-US/docs/Web/API/EventSource) 的 `text/event-stream` 格式。

/// info

在 FastAPI 0.135.0 新增。

///

## 什麼是 Server-Sent Events？ { #what-are-server-sent-events }

SSE 是一種透過 HTTP 從伺服器向用戶端串流傳送資料的標準。

It will perform the validation of the compound data, and will document it like that for the OpenAPI schema and automatic docs.

## Singular values in body { #singular-values-in-body }

The same way there is a `Query` and `Path` to define extra data for query and path parameters, **FastAPI** provides an equivalent `Body`.

			},
		})
	case conf.AWSRoleWebIdentityTokenFile != "" && conf.AWSRoleARN != "":
		sessionName := conf.AWSRoleSessionName
		if sessionName == "" {
			// RoleSessionName has a limited set of characters (https://docs.aws.amazon.com/STS/latest/APIReference/API_AssumeRole.html)
			sessionName = "minio-tier-" + mustGetUUID()
		}
		s3WebIdentityIAM := credentials.IAM{
			Client: &http.Client{
				Transport: NewHTTPTransport(),
			},

import com.google.errorprone.annotations.CanIgnoreReturnValue;
import org.jspecify.annotations.Nullable;

/**
 * Static convenience methods that serve the same purpose as Java language <a
 * href="https://docs.oracle.com/javase/8/docs/technotes/guides/language/assert.html">assertions</a>,
 * except that they are always enabled. These methods should be used instead of Java assertions
 * whenever there is a chance the check may fail "in real life". Example:

Це можна досягти за допомогою [Pydantic's `AfterValidator`](https://docs.pydantic.dev/latest/concepts/validators/#field-after-validator) в середині `Annotated`.

/// tip | Порада

Pydantic також має [`BeforeValidator`](https://docs.pydantic.dev/latest/concepts/validators/#field-before-validator) та інші. 🤓

///