Der tatsächliche Callback-Code hängt stark von Ihrer eigenen API-Anwendung ab.

Und er wird wahrscheinlich von Anwendung zu Anwendung sehr unterschiedlich sein.

Es könnten nur eine oder zwei Codezeilen sein, wie zum Beispiel:

```Python
callback_url = "https://example.com/api/v1/invoices/events/"
httpx.post(callback_url, json={"description": "Invoice paid", "paid": True})
```

* **FastAPI**:
    * So wie Starlette Uvicorn verwendet und nicht schneller als dieses sein kann, verwendet **FastAPI** Starlette, sodass es nicht schneller als dieses sein kann.

func (c *Target) Endpoint() string {
	return ""
}

func (c *Target) String() string {
	return "console"
}

// Send log message 'e' to console
func (c *Target) Send(e any) error {
	entry, ok := e.(log.Entry)
	if !ok {
		return fmt.Errorf("Uexpected log entry structure %#v", e)
	}
	if logger.IsJSON() {
		logJSON, err := json.Marshal(&entry)
		if err != nil {
			return err
		}

errors.cannot_delete_doc_because_of_running = A crawler is running. You cannot delete documents.
errors.failed_to_delete_doc_in_admin = Failed to delete a document.
errors.failed_to_send_testmail=Failed to send a test mail.
errors.invalid_query_unknown = The specified query has an unknown condition.
errors.invalid_query_parse_error = The given query is invalid.
errors.invalid_query_sort_value = The specified sort {0} is invalid.

errors.cannot_delete_doc_because_of_running = A crawler is running. You cannot delete documents.
errors.failed_to_delete_doc_in_admin = Failed to delete a document.
errors.failed_to_send_testmail=Failed to send a test mail.
errors.invalid_query_unknown = The specified query has an unknown condition.
errors.invalid_query_parse_error = The given query is invalid.
errors.invalid_query_sort_value = The specified sort {0} is invalid.

Orada "Releases only" seçebilirsiniz.

Böylece **FastAPI**'nin bug fix'ler ve yeni özelliklerle gelen her yeni release'inde (yeni versiyonunda) email ile bildirim alırsınız.

## Yazarla bağlantı kurun { #connect-with-the-author }

Yazar olan [benimle (Sebastián Ramírez / `tiangolo`)](https://tiangolo.com) bağlantı kurabilirsiniz.

Şunları yapabilirsiniz:

* [Beni **GitHub**'da takip edin](https://github.com/tiangolo).

				}
				if err := send(meta); err != nil {
					return err
				}
			case osIsNotExist(err), isSysErrIsDir(err):
				if legacy {
					meta.metadata, err = xioutil.ReadFile(pathJoinBuf(sb, volumeDir, meta.name, xlStorageFormatFileV1))
					diskHealthCheckOK(ctx, err)
					if err == nil {
						// It was an object
						if err := send(meta); err != nil {
							return err
						}

					wait()
					return nil
				})
			})
		}(disk)
	}
	wg.Wait()
}

// nsScanner will start scanning buckets and send updated totals as they are traversed.
// Updates are sent on a regular basis and the caller *must* consume them.

	retryTicker := time.NewTicker(retryInterval)
	defer retryTicker.Stop()

	send := func(key Key) bool {
		for {
			err := target.SendFromStore(key)
			if err == nil {
				break
			}

			logger(
				context.Background(),
				fmt.Errorf("unable to send log entry to '%s' err '%w'", target.Name(), err),
				target.Name(),
			)

			select {

    operation ->> dep_func: Return from path operation
    Note over dep_func: Run code after yield
    Note over dep_func: ✅ Dependency closed
    dep_func ->> client: Send response to client
    Note over client: Response sent
    Note over dep_req: Run code after yield
    Note over dep_req: ✅ Dependency closed
```