message.startsWith("System property ") -> Type.Setup
          message.startsWith("Reload ") -> Type.Setup
          message == "No session to resume." -> Type.Handshake
          message.startsWith("Consuming ") -> Type.Handshake
          message.startsWith("Produced ") -> Type.Handshake
          message.startsWith("Negotiated ") -> Type.Handshake

When a browser reconnects after a connection drop, it sends the last received `id` in the `Last-Event-ID` header.

You can read it as a header parameter and use it to resume the stream from where the client left off:

{* ../../docs_src/server_sent_events/tutorial004_py310.py hl[25,27,31] *}

## SSE with POST { #sse-with-post }

SSE works with **any HTTP method**, not just `GET`.

    // Pause in step 2.
    step2Waiter.awaitStarted();

    // Everything should still be open.
    assertStillOpen(closeable1, closeable2, closeable3, closeable4);

    // Cancel step 3, resume step 2, and pause in step 4.
    assertWithMessage("step3.cancel()").that(step3.cancel(false)).isTrue();
    step2Waiter.awaitReturned();
    step4Waiter.awaitStarted();

    // Pause in step 2.
    step2Waiter.awaitStarted();

    // Everything should still be open.
    assertStillOpen(closeable1, closeable2, closeable3, closeable4);

    // Cancel step 3, resume step 2, and pause in step 4.
    assertWithMessage("step3.cancel()").that(step3.cancel(false)).isTrue();
    step2Waiter.awaitReturned();
    step4Waiter.awaitStarted();

## Résumé et description de la documentation - OpenAPI { #documentation-summary-and-description-openapi }

Pour ajouter un résumé et une description à vos *chemins d'accès* et les afficher dans l'interface utilisateur de la documentation, lisez les documents [Tutoriel - Configurations de chemin d'accès - Résumé et description](../tutorial/path-operation-configuration.md#summary-and-description).

    thread.setPriority(Thread.MAX_PRIORITY);
    Thread.class.getMethod("resume").invoke(thread);
    thread.join();
    // It's possible to race and suspend the thread just before the park call actually takes effect,
    // causing the thread to be suspended for 3.5 seconds, and then park itself for 2 seconds after
    // being resumed. To avoid a flake in this scenario, calculate how long that thread actually

        {
            "type": "extra_forbidden",
            "loc": ["query", "tool"],
            "msg": "Extra inputs are not permitted",
            "input": "plumbus"
        }
    ]
}
```

## Résumé { #summary }

Vous pouvez utiliser des modèles Pydantic pour déclarer des paramètres de requête dans FastAPI. 😎

/// tip | Astuce

    thread.setPriority(Thread.MAX_PRIORITY);
    Thread.class.getMethod("resume").invoke(thread);
    thread.join();
    // It's possible to race and suspend the thread just before the park call actually takes effect,
    // causing the thread to be suspended for 3.5 seconds, and then park itself for 2 seconds after
    // being resumed. To avoid a flake in this scenario, calculate how long that thread actually

**FastAPI** le prend en charge de la même manière qu'avec des chaînes simples :

{* ../../docs_src/path_operation_configuration/tutorial002b_py310.py hl[1,8:10,13,18] *}

## Ajouter un résumé et une description { #summary-and-description }

Vous pouvez ajouter un `summary` et une `description` :

{* ../../docs_src/path_operation_configuration/tutorial003_py310.py hl[17:18] *}

/// warning | Alertes

Avant de définir `convert_underscores` à `False`, gardez à l'esprit que certains proxys et serveurs HTTP interdisent l'utilisation d'en-têtes contenant des underscores.

///

## Résumé { #summary }