frameHeader(
        streamId = streamId,
        length = length + 4,
        type = TYPE_PUSH_PROMISE,
        flags = if (byteCount == length.toLong()) FLAG_END_HEADERS else 0,
      )
      sink.writeInt(promisedStreamId and 0x7fffffff)
      sink.write(hpackBuffer, length.toLong())

      if (byteCount > length) writeContinuationFrames(streamId, byteCount - length)
    }
  }

			if !isAttach && sys.LDAPConfig.IsLDAPUserDN(r.User) {
				dn = sys.LDAPConfig.QuickNormalizeDN(r.User)
			} else {
				err = errNoSuchUser
				return
			}
		} else {
			dn = dnResult.NormDN
		}
		isGroup = false
	} else {
		var underBaseDN bool
		if dnResult, underBaseDN, err = sys.LDAPConfig.GetValidatedGroupDN(nil, r.Group); err != nil {
			iamLogIf(ctx, err)

            if (this.loadBalance) {
                dc = new UniAddress(getTransportContext().getNameServiceClient().getNbtByName(this.domainController, 0x1C, null));
            } else {
                dc = getTransportContext().getNameServiceClient().getByName(this.domainController, true);
            }
            NtlmPasswordAuthentication ntlm;
            if (msg.startsWith("NTLM ")) {

    if (!host.isAscii()) {
      false
    } else {
      try {
        verify(host, session.peerCertificates[0] as X509Certificate)
      } catch (_: SSLException) {
        false
      }
    }

  fun verify(
    host: String,
    certificate: X509Certificate,
  ): Boolean =
    when {
      host.canParseAsIpAddress() -> verifyIpAddress(host, certificate)
      else -> verifyHostname(host, certificate)
    }

            this.calledName = NbtAddress.SMBSERVER_NAME;
        } else {
            final int i = this.calledName.indexOf('.');
            if (i > 1 && i < 15) {
                this.calledName = this.calledName.substring(0, i).toUpperCase();
            } else if (this.calledName.length() > 15) {
                this.calledName = NbtAddress.SMBSERVER_NAME;
            } else {
                this.calledName = this.calledName.toUpperCase();

                    final int d2 = read();
                    if (d2 == QUOTE) {
                        c = QUOTE;
                    } else {
                        d = d2;
                        break;
                    }
                } else {
                    c = d;
                }
                if (i >= buf.length) {
                    final char[] nb = new char[buf.length * 2];

                    } else if (logger.isDebugEnabled()) {
                        logger.debug("Terminated process {}.", p);
                    }
                } catch (final Exception e) {
                    logger.warn("Failed to stop destroyer.", e);
                }
            } else {
                if (logger.isDebugEnabled()) {

		}
		plSize += len(found) + msgp.StringPrefixSize + msgp.ArrayHeaderSize
		keys = append(keys, found)
		if string(found) == key {
			vals = append(vals, value)
			plSize += len(value)
			replaced = true
		} else {
			vals = append(vals, foundVal)
			plSize += len(foundVal)
		}
	}

	// Add one more.
	if !replaced {
		keys = append(keys, []byte(key))
		vals = append(vals, value)

            } else {
                logger.info("No new thumbnails found.");
            }
            exitCode = 0;
        } catch (final ContainerNotAvailableException e) {
            if (logger.isDebugEnabled()) {
                logger.debug("ThumbnailGenerator is stopped.", e);
            } else if (logger.isInfoEnabled()) {

O podrías tener una aplicación móvil nativa que se comunica con tu backend de WebSocket directamente, en código nativo.

O podrías tener alguna otra forma de comunicarte con el endpoint de WebSocket.

---

Pero para este ejemplo, usaremos un documento HTML muy simple con algo de JavaScript, todo dentro de un string largo.

Esto, por supuesto, no es lo ideal y no lo usarías para producción.

En producción tendrías una de las opciones anteriores.