<img src="/img/tutorial/websockets/image01.png">

You can type messages in the input box, and send them:

<img src="/img/tutorial/websockets/image02.png">

And your **FastAPI** application with WebSockets will respond back:

<img src="/img/tutorial/websockets/image03.png">

You can send (and receive) many messages:

<img src="/img/tutorial/websockets/image04.png">

And all of them will use the same WebSocket connection.

    // Now process directly from the rest of the input buffer
    while (readBuffer.remaining() >= chunkSize) {
      process(readBuffer);
    }

    // Finally stick the remainder back in our usual buffer
    buffer.put(readBuffer);
    return this;
  }

  /*
   * Note: hashString(CharSequence, Charset) is intentionally not overridden.
   *

success.upload_mapping_file=Uploaded Mapping file.
success.send_testmail=Sent the test mail.
success.job_log_delete_all=Deleted job logs.
success.changed_password=Changed your password.
success.bulk_process_started=Bulk process is started.

success.crud_create_crud_table=Created data.
success.crud_update_crud_table=Updated data.

            throwValidationError(messages -> messages.addErrorsCrudCouldNotFindCrudTable(GLOBAL, id), this::asListHtml);
        });
        saveToken();
        if (form.crudMode.intValue() == CrudMode.EDIT) {
            // back
            form.crudMode = CrudMode.DETAILS;
            return asDetailsHtml();
        }
        form.crudMode = CrudMode.EDIT;
        return asEditHtml();
    }

            throwValidationError(messages -> messages.addErrorsCrudCouldNotFindCrudTable(GLOBAL, id), this::asListHtml);
        });
        saveToken();
        if (form.crudMode.intValue() == CrudMode.EDIT) {
            // back
            form.crudMode = CrudMode.DETAILS;
            return asDetailsHtml();
        }
        form.crudMode = CrudMode.EDIT;
        return asEditHtml();
    }

        // If the build section is present and the project directory is non-null, we should make
        // sure interpolation of the directories below uses translated paths.
        // Afterward, we'll double back and translate any paths that weren't covered during interpolation via the
        // code below...
        translatedPrefixes.add("build.directory");
        translatedPrefixes.add("build.outputDirectory");

# Server Workers - Uvicorn with Workers

Let's check back those deployment concepts from before:

* Security - HTTPS
* Running on startup
* Restarts
* **Replication (the number of processes running)**
* Memory
* Previous steps before starting

Up to this point, with all the tutorials in the docs, you have probably been running a **server program**, for example, using the `fastapi` command, that runs Uvicorn, running a **single process**.

            esac
        then
            arg=$( cygpath --path --ignore --mixed "$arg" )
        fi
        # Roll the args list around exactly as many times as the number of
        # args, so each arg winds up back in the position where it started, but
        # possibly modified.
        #
        # NB: a `for` loop captures its iteration list before it begins, so

            throws IntrospectionException {
        Object value = root;

        // ----------------------------------------------------------------------
        // Walk the dots and retrieve the ultimate value desired from the
        // MavenProject instance.
        // ----------------------------------------------------------------------

            throwValidationError(messages -> messages.addErrorsCrudCouldNotFindCrudTable(GLOBAL, id), this::asListHtml);
        });
        saveToken();
        if (form.crudMode.intValue() == CrudMode.EDIT) {
            // back
            form.crudMode = CrudMode.DETAILS;
            return asDetailsHtml();
        }
        form.crudMode = CrudMode.EDIT;
        return asEditHtml();
    }