By only using `BackgroundTasks` (and not `BackgroundTask`), it's then possible to use it as a *path operation function* parameter and have **FastAPI** handle the rest for you, just like when using the `Request` object directly.

It's still possible to use `BackgroundTask` alone in FastAPI, but you have to create the object in your code and return a Starlette `Response` including it.

```console
$ pip install websockets

---> 100%
```

</div>

## WebSockets client { #websockets-client }

### Production'da { #in-production }

Production sisteminizde muhtemelen React, Vue.js veya Angular gibi modern bir framework ile oluşturulmuş bir frontend vardır.

WebSockets kullanarak backend'inizle iletişim kurmak için de büyük ihtimalle frontend'inizin sağladığı yardımcı araçları kullanırsınız.

  TFE_Op* ret = TFE_NewOp(context, op_name, status);
  CHECK_EQ(TF_OK, TF_GetCode(status)) << TF_Message(status);
  const char* device = TFE_OpGetDevice(other, status);
  CHECK_EQ(TF_OK, TF_GetCode(status)) << TF_Message(status);
  TFE_OpSetDevice(ret, device, status);
  CHECK_EQ(TF_OK, TF_GetCode(status)) << TF_Message(status);
  TFE_OpAddAttrs(ret, TFE_OpGetAttrs(other));

---> 100%
```

</div>

## WebSockets-Client { #websockets-client }

### In Produktion { #in-production }

In Ihrem Produktionssystem haben Sie wahrscheinlich ein Frontend, das mit einem modernen Framework wie React, Vue.js oder Angular erstellt wurde.

Und um über WebSockets mit Ihrem Backend zu kommunizieren, würden Sie wahrscheinlich die Werkzeuge Ihres Frontends verwenden.

					}
					if len(l.lockUID) == 0 {
						t.Fatalf("objects uids all deleted, 0 remains")
					}

					start = time.Now()
					l.expireOldLocks(-time.Minute)
					t.Logf("Expire rest took: %v. Left: %d/%d", time.Since(start).Round(time.Millisecond), len(l.lockUID), len(l.lockMap))

					if len(l.lockMap) != 0 {
						t.Fatalf("objects not deleted, want %d != got %d", 0, len(l.lockMap))
					}

	VPOPCNTQ Z3, K2, Z9                                // 6272fd4a55cb
	VPOPCNTQ 17(SP), K2, Z9                            // 6272fd4a558c2411000000
	VPOPCNTQ -17(BP)(SI*4), K2, Z9                     // 6272fd4a558cb5efffffff

 *  * BER: Basic Encoding Rules.
 *
 * This class was implemented according to the [X.690 spec][[x690]], and under the advice of
 * [Lets Encrypt's ASN.1 and DER][asn1_and_der] guide.
 *
 * [x690]: https://www.itu.int/rec/T-REC-X.690
 * [asn1_and_der]: https://letsencrypt.org/docs/a-warm-welcome-to-asn1-and-der/
 */
internal class DerReader(
  source: Source,
) {
  private val countingSource: CountingSource = CountingSource(source)

You can also use the *path operation decorator* parameters `response_model_include` and `response_model_exclude`.

They take a `set` of `str` with the name of the attributes to include (omitting the rest) or to exclude (including the rest).

This can be used as a quick shortcut if you have only one Pydantic model and want to remove some data from the output.

/// tip

- **Elasticsearch / OpenSearch** - Direct data migration via bulk APIs
- **Apache Solr** - Document import via REST API
- **Database Systems** - Direct connection via DataStore plugins
- **File Systems** - SMB, FTP, local file crawling
- **Custom Systems** - REST API for bulk document indexing

---

## Pre-Migration Planning

### 1. Assessment Phase

---> 100%
```

</div>

## WebSockets client { #websockets-client }

### In production { #in-production }

In your production system, you probably have a frontend created with a modern framework like React, Vue.js or Angular.

And to communicate using WebSockets with your backend you would probably use your frontend's utilities.