## Instalar `websockets` { #install-websockets }

Asegúrate de crear un [entorno virtual](../virtual-environments.md), activarlo e instalar `websockets` (un paquete de Python que facilita usar el protocolo "WebSocket"):

<div class="termy">

```console
$ pip install websockets

---> 100%
```

</div>

## Cliente WebSockets { #websockets-client }

### En producción { #in-production }

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package jcifs.smb1.smb1;

import jcifs.smb1.Config;

/**
 * Buffer cache implementation for SMB1 protocol operations.
 * Manages a pool of byte buffers to reduce garbage collection overhead.
 *
 * Performance optimizations:
 * - Uses ConcurrentLinkedQueue for O(1) operations
 * - Lock-free operations for better concurrency

kubernetes.io/ingress.class: nginx # kubernetes.io/tls-acme: "true" # kubernetes.io/ingress.allow-http: "false" # kubernetes.io/ingress.global-static-ip-name: "" # nginx.ingress.kubernetes.io/secure-backends: "true" # nginx.ingress.kubernetes.io/backend-protocol: "HTTPS" # nginx.ingress.kubernetes.io/whitelist-source-range: 0.0.0.0/0 path: / hosts: - chart-example.local tls: [] # - secretName: chart-example-tls # hosts: # - chart-example.local consoleService: type: ClusterIP clusterIP: ~ ## Make sure to...

kubernetes.io/ingress.class: nginx # kubernetes.io/tls-acme: "true" # kubernetes.io/ingress.allow-http: "false" # kubernetes.io/ingress.global-static-ip-name: "" # nginx.ingress.kubernetes.io/secure-backends: "true" # nginx.ingress.kubernetes.io/backend-protocol: "HTTPS" # nginx.ingress.kubernetes.io/whitelist-source-range: 0.0.0.0/0 path: / hosts: - chart-example.local tls: [] # - secretName: chart-example-tls # hosts: # - chart-example.local consoleService: type: ClusterIP clusterIP: ~ ## Make sure to...

        FATAL // Connection or session must be terminated
    }

    /**
     * Error categories
     */
    public enum Category {
        AUTHENTICATION, AUTHORIZATION, NETWORK, PROTOCOL, RESOURCE, CONFIGURATION, ENCRYPTION, TIMEOUT, IO, UNKNOWN
    }

    private final int errorCode;
    private final Severity severity;
    private final Category category;
    private final Map<String, Object> context;

  val allowInsecure: Boolean by option("-k", "--insecure").help("Allow connections to SSL sites without certs").flag()

  val showHeaders: Boolean by option("-i", "--include").help("Include protocol headers in the output").flag()

  val showHttp2Frames: Boolean by option("--frames").help("Log HTTP/2 frames to STDERR").flag()

  val referer: String? by option("-e", "--referer").help("Referer URL")

heritage: Helm spec: type: ClusterIP ports: - name: http port: 9001 protocol: TCP targetPort: 9001 selector: app: minio release: chart-1640120023 --- # Source: minio/templates/service.yaml apiVersion: v1 kind: Service metadata: name: chart-1640120023-minio namespace: "minio" labels: app: minio chart: minio-3.4.2 release: chart-1640120023 heritage: Helm monitoring: "true" spec: type: ClusterIP ports: - name: http port: 9000 protocol: TCP targetPort: 9000 selector: app: minio release: chart-1640120023...

   * protect ourselves from that we want to make sure that tasks don't spin too much waiting for the
   * interrupting thread to complete the protocol.
   */
  /*
   * This test hangs (or maybe is just *very* slow) under Android.
   *
   * TODO(b/218700094): Ideally, get this to pass under Android. Failing that, convince ourselves

   * protect ourselves from that we want to make sure that tasks don't spin too much waiting for the
   * interrupting thread to complete the protocol.
   */
  /*
   * This test hangs (or maybe is just *very* slow) under Android.
   *
   * TODO(b/218700094): Ideally, get this to pass under Android. Failing that, convince ourselves

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

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

SSE fonctionne avec **n’importe quelle méthode HTTP**, pas seulement `GET`.

C’est utile pour des protocoles comme [MCP](https://modelcontextprotocol.io) qui diffusent des SSE via `POST` :

{* ../../docs_src/server_sent_events/tutorial005_py310.py hl[14] *}

## Détails techniques { #technical-details }