In your WebSocket route you can `await` for messages and send messages.

```Python hl_lines="48-52"
{!../../docs_src/websockets/tutorial001.py!}
```

You can receive and send binary, text, and JSON data.

## Try it

If your file is named `main.py`, run your application with:

<div class="termy">

```console
$ fastapi dev main.py

## 運行程式碼

所有程式碼區塊都可以直接複製和使用（它們實際上是經過測試的 Python 檔案）。

要運行任何範例，請將程式碼複製到 `main.py` 檔案，並使用以下命令啟動 `fastapi dev`：

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> dev <u style="text-decoration-style:single">main.py</u>
<font color="#3465A4">INFO    </font> Using path <font color="#3465A4">main.py</font>

import com.google.common.escape.Escaper;
import com.google.common.escape.Escapers;

/**
 * {@code Escaper} instances suitable for strings to be included in XML attribute values and
 * elements' text contents. When possible, avoid manual escaping by using templating systems and
 * high-level APIs that provide autoescaping. For example, consider <a
 * href="http://www.xom.nu/">XOM</a> or <a href="http://www.jdom.org/">JDOM</a>.
 *

package schema

import (
	"context"
	"fmt"
	"reflect"
	"strings"

	"github.com/jinzhu/inflection"
	"golang.org/x/text/cases"
	"golang.org/x/text/language"

	"gorm.io/gorm/clause"
)

// RelationshipType relationship type
type RelationshipType string

const (
	HasOne    RelationshipType = "has_one"      // HasOneRel has one relationship
	HasMany   RelationshipType = "has_many"     // HasManyRel has many relationship

import static org.opensearch.common.xcontent.XContentFactory.jsonBuilder;

import java.io.IOException;
import java.nio.charset.Charset;
import java.sql.Timestamp;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Base64;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.TimeZone;

removeClass(qe+" "+Me)},t.setElementContent=function(t,e){"object"!=typeof e||!e.nodeType&&!e.jquery?this.config.html?(this.config.sanitize&&(e=we(e,this.config.whiteList,this.config.sanitizeFn)),t.html(e)):t.text(e):this.config.html?g(e).parent().is(t)||t.empty().append(e):t.text(g(e).text())},t.getTitle=function(){var t=this.element.getAttribute("data-original-title");return t=t||("function"==typeof this.config.title?this.config.title.call(this.element):this.config.title)},t._getPopperConfig=function(t){var...

labels.facet_filetype_odp=ODF Presentation
labels.facet_filetype_pdf=PDF
labels.facet_filetype_fb2=FictionBook
labels.facet_filetype_epub=EPUB
labels.facet_filetype_ibooks=iBooks
labels.facet_filetype_txt=Plain Text
labels.facet_filetype_rtf=Rich Text Format
labels.facet_filetype_chm=Compiled HTML Help
labels.facet_filetype_zip=ZIP Archive
labels.facet_filetype_7z=7z Archive
labels.facet_filetype_bz=Bz Archive
labels.facet_filetype_bz2=Bz2 Archive

                        for (final String name : metadata.names()) {
                            final String lowerName = name.toLowerCase(Locale.ROOT);
                            if (lowerName.contains("comment") || lowerName.contains("text")) {
                                final String[] values = metadata.getValues(name);
                                if (values != null) {
                                    Collections.addAll(list, values);

/// info

If you are using containers, for example with Docker or Kubernetes, I'll tell you more about that in the next chapter: [FastAPI in Containers - Docker](docker.md){.internal-link target=_blank}.

      long next = flip(array[i]);
      if (next > max) {
        max = next;
      }
    }
    return flip(max);
  }

  /**
   * Returns a string containing the supplied unsigned {@code long} values separated by {@code
   * separator}. For example, {@code join("-", 1, 2, 3)} returns the string {@code "1-2-3"}.
   *