# Test Client - `TestClient`

You can use the `TestClient` class to test FastAPI applications without creating an actual HTTP and socket connection, just communicating directly with the FastAPI code.

Read more about it in the [FastAPI docs for Testing](https://fastapi.tiangolo.com/tutorial/testing/).

You can import it directly from `fastapi.testclient`:

```python
from fastapi.testclient import TestClient
```

		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrMalformedXML: {
		Code:           "MalformedXML",
		Description:    "The XML you provided was not well-formed or did not validate against our published schema.",
		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrMissingContentLength: {
		Code:           "MissingContentLength",
		Description:    "You must provide the Content-Length HTTP header.",
		HTTPStatusCode: http.StatusLengthRequired,

🕐❔ 🛠️ 🈸 👆 🔜 🎲 💚 ✔️ **🧬 🛠️** ✊ 📈 **💗 🐚** & 💪 🍵 🌅 📨.

👆 👀 ⏮️ 📃 🔃 [🛠️ 🔧](concepts.md){.internal-link target=_blank}, 📤 💗 🎛 👆 💪 ⚙️.

📥 👤 🔜 🎦 👆 ❔ ⚙️ <a href="https://gunicorn.org/" class="external-link" target="_blank">**🐁**</a> ⏮️ **Uvicorn 👨‍🏭 🛠️**.

/// info

🚥 👆 ⚙️ 📦, 🖼 ⏮️ ☁ ⚖️ Kubernetes, 👤 🔜 💬 👆 🌅 🔃 👈 ⏭ 📃: [FastAPI 📦 - ☁](docker.md){.internal-link target=_blank}.

 * href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>.
 *
 * <p><b>{@code default} method warning:</b> This class forwards calls to <i>only some</i> {@code
 * default} methods. Specifically, it forwards calls only for methods that existed <a
 * href="https://docs.oracle.com/javase/7/docs/api/java/util/ListIterator.html">before {@code

	"github.com/minio/madmin-go/v3"
)

func main() {
	// Note: YOUR-ACCESSKEYID, YOUR-SECRETACCESSKEY are
	// dummy values, please replace them with original values.

	// API requests are secure (HTTPS) if secure=true and insecure (HTTP) otherwise.
	// New returns an MinIO Admin client object.
	madmClnt, err := madmin.New(os.Args[1], os.Args[2], os.Args[3], false)
	if err != nil {
		log.Fatalln(err)
	}

	opts := madmin.HealOpts{

/// note | 📡 ℹ

📊 ⚪️➡️ 📨 🛎 🗜 ⚙️ "📻 🆎" `application/x-www-form-urlencoded`.

✋️ 🕐❔ 📨 🔌 📁, ⚫️ 🗜 `multipart/form-data`. 👆 🔜 ✍ 🔃 🚚 📁 ⏭ 📃.

🚥 👆 💚 ✍ 🌖 🔃 👉 🔢 &amp; 📨 🏑, 👳 <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/POST" class="external-link" target="_blank"><abbr title="Mozilla Developer Network">🏇</abbr> 🕸 🩺 <code>POST</code></a>.

///

/// warning

# ボディ - 更新

## `PUT`による置換での更新

項目を更新するには<a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/PUT" class="external-link" target="_blank">HTTPの`PUT`</a>操作を使用することができます。

`jsonable_encoder`を用いて、入力データをJSON形式で保存できるデータに変換することができます（例：NoSQLデータベース）。例えば、`datetime`を`str`に変換します。

{* ../../docs_src/body_updates/tutorial001.py hl[30,31,32,33,34,35] *}

既存のデータを置き換えるべきデータを受け取るために`PUT`は使用されます。

### 置換についての注意

つまり、`PUT`を使用して以下のボディで項目`bar`を更新したい場合は:

	}

	state := fmt.Sprintf("x%dx", time.Now().Unix())
	authCodeURL := oauth2Config.AuthCodeURL(state)
	// fmt.Printf("authcodeurl: %s\n", authCodeURL)

	var lastReq *http.Request
	checkRedirect := func(req *http.Request, via []*http.Request) error {
		// fmt.Printf("CheckRedirect:\n")
		// fmt.Printf("Upcoming: %s %s\n", req.Method, req.URL.String())
		// for i, c := range via {

 *
 *  * A DNS lookup failed
 *  * The configuration is incapable of carrying the request, such as when the client is configured
 *    to use `H2_PRIOR_KNOWLEDGE` but the URL's scheme is `https:`.
 *  * Preemptive proxy authentication failed.
 *
 * Planning failures are not necessarily fatal. For example, even if we can't DNS lookup the first
 * proxy in a list, looking up a subsequent one may succeed.
 */

      .addInterceptor(new CurrentDateInterceptor())
      .build();

  public void run() throws Exception {
    Request request = new Request.Builder()
        .url("https://publicobject.com/helloworld.txt")
        .build();

    try (Response response = client.newCall(request).execute()) {
      System.out.println(response.request().header("Date"));
    }
  }