## Check the Virtual Environment is Active { #check-the-virtual-environment-is-active }

Check that the virtual environment is active (the previous command worked).

/// tip

This is **optional**, but it's a good way to **check** that everything is working as expected and you are using the virtual environment you intended.

///

//// tab | Linux, macOS, Windows Bash

<div class="termy">

```console

        .build(),
    )

    val url = server.url("/same")

    // First QUERY request with body "foo"
    val request1 =
      Request
        .Builder()
        .url(url)
        .query("foo".toRequestBody())
        .cacheUrlOverride(url.newBuilder().addQueryParameter("body", "foo").build())
        .build()
    val response1 = client.newCall(request1).execute()

User-agent: FessCrawler
Disallow:           # allows all 

User-agent: BruteBot
Disallow: /
Allow: /foo/bar/
Crawl-delay: 1314000

# welcome!
User-agent: Googlebot
Crawl-delay: 1

User-agent: *
Disallow: /private/
Disallow: /help        # disallows /help.html, /help/index.html, etc.
Allow: /help/faq.html
Crawl-delay: 3

User-agent: Crawler
Disallow: /aaa

User-agent: Crawler/1.0
Disallow: /bbb

                <image file="taro.png" />
        </item>
        <item sex="male" custid="B23456">
                <name>佐藤二朗</name>
                <access kind="email">jiro@hoge.foo.bar</access>
                <image file="jiro.png" />
        </item>
        <item sex="female" custid="C34567">
                <name>田中花子</name>
                <access kind="tel">090-xxxx-xxxx</access>

)
async def read_item(item_id: str, img: Union[bool, None] = None):
    if img:
        return FileResponse("image.png", media_type="image/png")
    else:

		<hoge:access kind="url">http://www.taro.com/</hoge:access>
		<hoge:image file="taro.png" />
	</hoge:item>
	<hoge:item sex="male" custid="B23456">
		<hoge:name>佐藤二朗</hoge:name>
		<hoge:access kind="email">jiro@hoge.foo.bar</hoge:access>
		<hoge:image file="jiro.png" />
	</hoge:item>
	<hoge:item sex="female" custid="C34567">
		<hoge:name>田中花子</hoge:name>
		<hoge:access kind="tel">090-xxxx-xxxx</hoge:access>

                </div>
            </la:form>
        </section>
    </main>
    <jsp:include page="/WEB-INF/view/common/admin/footer.jsp"></jsp:include>
</div>
<jsp:include page="/WEB-INF/view/common/admin/foot.jsp"></jsp:include>
</body>

### The resulting response { #the-resulting-response }

If the client requests `http://example.com/items/foo` (an `item_id` `"foo"`), that client will receive an HTTP status code of 200, and a JSON response of:

```JSON
{
  "item": "The Foo Wrestlers"
}
```

                + "<field name=\"image\"><list><item>taro.png</item><item>jiro.png</item><item>hanako.png</item></list></field>\n"//
                + "<field name=\"email\"><list><item></item><item>jiro@hoge.foo.bar</item></list></field>\n"//

这意味着 **FastAPI** 将期望类似于以下内容的请求体：

```JSON
{
    "name": "Foo",
    "description": "The pretender",
    "price": 42.0,
    "tax": 3.2,
    "tags": ["rock", "metal", "bar"],
    "image": {
        "url": "http://example.com/baz.jpg",
        "name": "The Foo live"
    }
}
```

再一次，仅仅进行这样的声明，你将通过 **FastAPI** 获得：

* 对被嵌入的模型也适用的编辑器支持（自动补全等）
* 数据转换
* 数据校验